PLEASE HELP ME
I DONT UNDERSTAND

PLEASE HELP ME I DONT UNDERSTAND

Answers

Answer 1

Answer: its letter A

Step-by-step explanation:

Answer 2

Answer:

145

Step-by-step explanation:

This is pretty simple, the three angles inside the triangle equal to 180 degrees, so if you add 80 and 65 and subtract that from 180, you get 35. So two angles that are connected to a single line equal to 180, so you just subtract 35 from 180 to get 145. Therefore, <1 = 145.


Related Questions

the histogram represents the number of gallons of gasoline that driver purchased weekly . how many driver represented by the histogram

Answers

Answer:

6

Step-by-step explanation:

I did it

What is the positive slope of the asymptote of the hyperbola? The positive slope of the asymptote is .

Answers

Answer:

2

Step-by-step explanation:

edge

Final answer:

The positive slope of the asymptote of a hyperbola is a straight line with positive slope.

Explanation:

The positive slope of the asymptote of a hyperbola is a straight line with positive slope (option b). A positive slope indicates that the line moves up the y-axis as the x-value increases, while a negative slope means that the line moves down the y-axis. The appearance of positive slope differs from negative slope and zero slope in that it moves up the y-axis as the x-value increases, while negative slope moves down the y-axis and zero slope means a horizontal line.

A fifth grade class sets up 418 chairs for a graduation ceremony. Each row has 22 chairs.
How many rows of chairs does the class set up? Enter your answer in the box.

Answers

Answer:

19

Step-by-step explanation: all you have to do is divide 418 by 22, and u can use long division...

Final answer:

The class set up 19 full rows of chairs for the graduation ceremony by dividing the total number of chairs, 418, by the number of chairs in each row, 22.

Explanation:

To determine how many rows of chairs the fifth grade class set up for a graduation ceremony, we divide the total number of chairs by the number of chairs in each row. They have set up a total of 418 chairs, and each row contains 22 chairs.

Divide the total number of chairs (418) by the number of chairs per row (22).

Perform the division: 418 ÷ 22 = 19.

The result is that they set up 19 full rows of chairs.

What’s the first answer I’m it’s very easy I just need help thanks

Answers

Answer:121

Step-by-step explanation:

11 times 11.

Answer:

[tex]121[/tex]

Step-by-step explanation:

[tex]11^{2} \\ write \: the \: exponentiation \: as \\ multiplication. \\ \\ 11 \times 11 \\ multiply \\ \\ 121[/tex]

In order to determine the average price of hotel rooms in Atlanta, a sample of 64 hotels was selected. It was determined that the average price of the rooms in the sample is $105. The population standard deviation is known to be $16. Calculate the value of the test statistic that you would use to test the hypothesis that the average room price is significantly different from $108.50. (Round your answer to two decimals.)

Answers

Answer:

9.76

Step-by-step explanation:

I am very smart

HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing.

Answers

Answer:

D

Step-by-step explanation:

This function resembles that of the absolute value function, never going into the negative y values. Hope this helps!

Can someone answer this plz ?

Answers

i think its B) could be a) but im leaning more on B)

When working properly, a machine that is used to makes chips for calculators does not produce more than 4% defective chips. Whenever the machine produces more than 4% defective chips, it needs an adjustment. To check if the machine is working properly, the quality control department at the company often takes samples of chips and inspects them to determine if they are good or defective. One such random sample of 200 chips taken recently from the production line contained 12 defective chips. Find the p-value to test the hypothesis whether or not the machine needs an adjustment. What would your conclusion be if the significance level is 2.5%

Answers

Answer:

The proportion of defective chips produced by the machine is more than 4% so the machine needs an adjustment.

Step-by-step explanation:

In this case we need to test whether the proportion of defective chips produced by the machine is more than 4%.

The hypothesis can be defined as follows:

H₀: The proportion of defective chips produced by the machine is not more than 4%, i.e. p ≤ 0.04.

Hₐ: The proportion of defective chips produced by the machine is more than 4%, i.e. p > 0.04.

The information provided is:

X = 12

n = 200

α = 0.025

The sample proportion of defective chips is:

[tex]\hat p=\frac{X}{n}\\\\=\frac{12}{200}\\\\=0.06[/tex]

Compute the test statistic as follows:

[tex]z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}\\\\=\frac{0.06-0.04}{\sqrt{\frac{0.04(1-0.04)}{200}}}\\\\=1.44[/tex]

The test statistic value is 1.44.

Decision rule:

We reject a hypothesis if the p-value of a statistic is lower than the level of significance α.

Compute the p-value of the test:

[tex]p-value=P(Z>1.44)\\=1-P(Z<1.44)\\=1-0.92507\\=0.07493\\\approx 0.075[/tex]

The p-value of the test is 0.075.

p-value = 0.075 > α = 0.025

The null hypothesis was failed to be rejected at 2.5% level of significance.

Thus, it can be concluded that the proportion of defective chips produced by the machine is more than 4% so the machine needs an adjustment.

Final answer:

To test the hypothesis whether or not the machine needs an adjustment, we can use a one-sample proportion test. Calculate the sample proportion, the standard error of the proportion, and the test statistic. Find the p-value and compare it to the significance level to make a conclusion.

Explanation:

To test the hypothesis whether or not the machine needs an adjustment, we can use a hypothesis test. The null hypothesis (H0) is that the machine is working properly and the alternative hypothesis (Ha) is that the machine needs an adjustment. We can use a one-sample proportion test since we are testing the proportion of defective chips.

Calculate the sample proportion, which is the number of defective chips divided by the sample size: p-hat = 12/200 = 0.06.Calculate the standard error of the proportion: SE = sqrt((p-hat * (1 - p-hat)) / n) = sqrt((0.06 * 0.94) / 200) = 0.0212.Calculate the test statistic, which is the difference between the sample proportion and the hypothesized proportion divided by the standard error: z = (p-hat - p) / SE = (0.06 - 0.04) / 0.0212 = 0.9434.Find the p-value associated with the test statistic using a standard normal distribution table or a calculator. In this case, the p-value is the probability of observing a test statistic as extreme as 0.9434 or more extreme if the null hypothesis is true.

If the p-value is less than the significance level (2.5%), we reject the null hypothesis and conclude that the machine needs an adjustment. If the p-value is greater than or equal to the significance level, we fail to reject the null hypothesis and conclude that there is not enough evidence to suggest that the machine needs an adjustment.

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A pair of sunglasses is priced at $42.95. They are put on sale at 27% off the original price. Shane estimates the discounted price of the sunglasses to be around $36. Is this a reasonable estimate?

Answers

Answer:

no,

Step-by-step explanation:

1/4 of 40 is 10

40-10=30

It depends. The actual price would be $31.35. So it is not really reasonable since it is closer to the original price than it is to the discounted one... Just use your best judgement...

The perimeter of a square is represented by 4x − 16. What is the length of a side of this square?

Answers

Answer:

(x-4)

Step-by-step explanation:

Since a square has 4 equal sides, the perimeter of a square is 4 times one of the sides (which is equal to adding all the sides together). So:

Perimeter = 4(a side) = 4x-16

a side = (4x-16)/4 = (x-4)

The length of a side of a square with perimeter 4x - 16 is x - 4.  

perimeter of a square is represented as follows:

perimeter = 4l

where

l = length

Therefore,

4l = 4x - 16

divide both sides by 4

l = x - 4

The length = x - 4

Note a square have all its side equal to each other.

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Roger Brown works for the sanitation department. He earns a salary of $721.00 biweekly. His boss gave him
a raise that will go into effect at the first of the year. His new annual salary will be $20.995.00. How much
more money will Roger make next year than this year?​

Answers

Answer:

2249 dollars more

Step-by-step explanation:

52 weeks in one year so divide by 2 and then multiply by 721 and then take that amount and dubtract the new salary 20.995 and subtract the previous annual amount and then boom 2295 more

Final answer:

Roger will make $2,249.00 more money next year than he did this year.

Explanation:

To determine how much more money Roger will make next year compared to this year, we need to find the difference between his new annual salary and his current biweekly salary.

To calculate the annual salary, we can multiply the biweekly salary by the number of biweekly periods in a year. There are 26 biweekly periods in a year (52 weeks / 2). So, Roger's current annual salary is $721.00 x 26 = $18,746.00.

The difference between his new annual salary and his current annual salary is $20,995.00 - $18,746.00 = $2,249.00. Therefore, Roger will make $2,249.00 more money next year than he did this year.

A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. She knows that Solution A is 55% salt and Solution B is 80% salt. She wants to obtain 130 ounces of a mixture that is 75% salt. How many ounces of each solution should she use?

Answers

Answer:

26 ounces of 55% solution104 ounces of 80% solution

Step-by-step explanation:

Let x represent the quantity of 80% solution. Then 130-x is the amount of 55% solution. The total amount of salt in the mix is ...

  0.80x +0.55(130 -x) = 0.75·130

  0.25x = 0.20·130 . . . . . . . subtract 0.55(130)

  x = 0.20/0.25(130) = 104

  130-x = 26

She should use 26 ounces of 55% solution and 104 ounces of 80% solution.

Final answer:

The scientist would need to use 26 ounces of Solution A and 104 ounces of Solution B to create 130 ounces of a 75% salt mixture.

Explanation:

To solve the problem of mixing two salt solutions of different concentrations to achieve a specific final concentration, we can set up a system of equations based on the amounts of salt and total solution. We know that Solution A is 55% salt and Solution B is 80% salt, and we want 130 ounces of a 75% salt mixture.

Let x be the amount of Solution A and y be the amount of Solution B. The first equation is based on the total amount of solution, and it is:

x + y = 130 ... (1)

The second equation is based on the amount of salt in the final mixture:

0.55x + 0.80y = 0.75(130) ... (2)

From equation (1), we can express y as y = 130 - x. Substitute this into equation (2) and solve for x:

0.55x + 0.80(130 - x) = 97.5

0.55x + 104 - 0.80x = 97.5

-0.25x = -6.5

x = 26 ounces (Solution A)

Substitute x back into equation (1) to find y:

x + y = 130

26 + y = 130

y = 104 ounces (Solution B)

So, to obtain 130 ounces of a 75% salt mixture, the scientist would use 26 ounces of Solution A and 104 ounces of Solution B.

Construct a 90% confidence interval of the population proportion using the given information.

X= 175

n= 250

Answers

Tbe confidence interval marked the range of values for which the true population mean is estimated to be given a certain level of confidence. Hence, the confidence interval is (0.6523, 0.7477)

Since the sample size is large enough, we use the the Z distributuon :

Confidence interval is defined thus :

Mean ± margin of error

Margin of Error :

[tex] Z = Z* \sqrt{\frac{pq}{n}}[/tex]

Mean, p = x/n = 175/250 = 0.7

q = 1 - 0.7 = 0.3

Zcritical at 90% = Z* = 1.645

Hence,

Margin of Error = [tex] 1.645 \sqrt{\frac{0.7\times 0.3 }{250}} = 0.0477[/tex]

Lower confidence boundary = 0.7 - 0.0290 = 0.6523

Upper confidence boundary = 0.7 + 0.0290 = 0.7477

Therefore, the confidence interval is (0.6523, 0.7477)

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Final answer:

To construct a 90% confidence interval for the population proportion, calculate the sample proportion, the standard error, and use the confidence interval formula.

Explanation:

Step 1:

Calculate the sample proportion, which is X divided by n. In this case, it is 175 divided by 250, which gives us 0.7.

Step 2:

Calculate the standard error, which is the square root of (p*(1-p))/n, where p is the sample proportion. In this case, it is the square root of (0.7*(1-0.7))/250, which is approximately 0.0266.

Step 3:

Construct the confidence interval using the formula p ± z*(standard error), where p is the sample proportion and z is the z-score corresponding to the desired level of confidence. For a 90% confidence interval, the z-score is approximately 1.645. Therefore, the 90% confidence interval is 0.7 ± 1.645*0.0266, which becomes (0.658, 0.742).

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Maria has promised her neighbor to plant spring flowers in his garden. If the area is 250 square feet and she has completed 1/3 of it, how many square feet does she have left to plant flowers

Answers

Answer:

She still has 166.67 square feet does she have left to plant flowers

Step-by-step explanation:

The sum of total area planted, and the remaining area left to plant, is 100% = decimal 1.

She has planted 1/3 of the area. So

[tex]\frac{1}{3} + p = 1[/tex]

[tex]p =  1 - \frac{1}{3}[/tex]

[tex]p = \frac{3-1}{3}[/tex]

[tex]p = \frac{2}{3}[/tex]

So she still has to paint two thirds of the area.

The area is of 250 square feet.

2/3 of 250

[tex]250\frac{2}{3} = 166.67[/tex]

She still has 166.67 square feet does she have left to plant flowers

Determine whether each of the following LTIC systems is i) BIBO stable, ii) asymptotically stable, and iii) marginally stable. Explain why or why not. (a) d 3y dt3 − 3 dy dt − 2y(t) = df dt − f(t) (b) d 3y dt3 − 3 dy dt − 2y(t) = df dt − 2f(t) (c) d 2y dt2 + 3 dy dt + 2y(t) = df dt + f(t) (d) d 2y dt2 + 2 dy dt + 2y(t) = f(t) (e) d 2y dt2 + 2y(t) = f(t)

Answers

Answer:

Check the explanation

Step-by-step explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

Given:
f(x) = x2 - 6x + 13
What is f (4)?

Answers

Answer:

5

Step-by-step explanation:

f(x) = x^2 -6x+13

Let x=4

f (4) = 4^2 -6(4) +13

       = 16 -24 +13

       = 5

Final answer:

The value of f(4) for the function f(x) = x^2 - 6x + 13 is 5.

Explanation:

In order to find f(4) for the function f(x) = x2 - 6x + 13, we replace each x in the equation with 4. So, f(4) = (4)2 - 6(4) + 13. Squaring 4 gives us 16, and 6 times 4 gives us 24.

Therefore, our equation is now f(4) = 16 - 24 + 13. Solving for f(4), we subtract 24 from 16 to get -8, and then add 13 to get 5.

Thus, f(4) = 5.

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Lindsay​ Electronics, a small manufacturer of electronic research​ equipment, has approximately 7 comma 000 items in its inventory and has hired Joan​ Blasco-Paul to manage its inventory. Joan has determined that 10​% of the items in inventory are A​ items, 35​% are B​ items, and 55​% are C items. She would like to set up a system in which all A items are counted monthly​ (every 20 working​ days), all B items are counted quarterly​ (every 60 working​ days), and all C items are counted semiannually​ (every 120 working​ days). How many items need to be counted each​ day?

Answers

Answer:

108

Step-by-step explanation:

As per the given question the solution of items need to be counted each day is provided below:-

Here to reach the items needs to be counted each day first we need to find out the number of items which are as follows:-

[tex]For\ item\ A\ = Inventory\ A\ Percentage \times \ Number\ of\ inventory\ items[/tex]

[tex]= 10\% \times \ 7,000[/tex]

[tex]= 0.1 \times \ 7,000[/tex]

[tex]= \ 700[/tex]

[tex]For\ item\ B\ = Inventory\ B\ Percentage \times \ Number\ of\ inventory\ items[/tex]

[tex]= 35\% \times \ 7,000[/tex]

[tex]= 0.35 \times\ 7,000[/tex]

[tex]= \ 2,450[/tex]

[tex]For\ item\ C\ = Inventory\ C\ Percentage \times \ Number\ of\ inventory\ items[/tex]

[tex]= 55\% \times \ 7,000[/tex]

[tex]= 0.55 \times\ 7,000[/tex]

[tex]= 3,850[/tex]

Now, we will find out the items to be counted each day

[tex]Items\ to\ be\ counted\ each\ day\ = \frac{Item\ A}{Working\ Days\ of\ A} \ + \frac{Item\ B}{Working\ Days\ of\ B} \ + \frac{Item\ C}{Working\ Days\ of\ C}[/tex]

[tex]= \frac{700}{20} \ + \frac{2,450}{60}\ + \frac{3,850}{120}[/tex]

[tex]= \ 35\ + \ 40.83\ + \ 32.08[/tex]

[tex]= \ 107.92[/tex]

or

= 108

So, we have calculated the items to be counted for each day by using the above formula.

The volume of a cylinder is 768 Π in3. Find the radius of the cylinder (in inches) if the height is 3 in.

Answers

Answer:14In

Step-by-step explanation:

volume(v)=768π

height(h)=3

Radius=√(v ➗ πxh)

Radius=√(768π ➗ 3π)

Radius=√(256)

Radius=14 In

Which expression is the greatest common factor of the two addends in 18x + 30x2?

Answers

Step-by-step explanation:

I think common factors are

18 = 1 2 3 6 9 18

30 = 1 2 3 10 15 30

So highest common factor is 3

18x + 30x2

3x (6 + 10x)

Answer:

The answer is 6x

Step-by-step explanation:

Giving brainliest for CORRECT awnser.

Answers

Answer:

11> x

Step-by-step explanation:

-5 > x-16

Add 16 to each side

-5+16 > x-16+16

11> x

Many everyday​ decisions, like who will drive to lunch or who will pay for the​ coffee, are made by the toss of a​ (presumably fair) coin and using the criterion​ "heads, you​ will; tails, I​ will." This criterion is not quite​ fair, however, if the coin is biased​ (perhaps due to slightly irregular construction or​ wear). John von Neumann suggested a way to make perfectly fair​ decisions, even with a possibly biased coin. If a​ coin, biased so that ​P(x)equals 0.4700 and ​P(t)equals 0.5300​, is tossed​ twice, find the probability ​

Answers

Answer:

P(hh) = 0.2209

P(ht) = 0.2491

P(th) = 0.2491

P(tt) = 0.2809

John von Neumann suggested that if both tosses results in same outcome then discard the result and start again. If each result is different then accept the first one

Step-by-step explanation:

We are given that a coin is unfair and the probabilities of getting a head and tail are

P(h) = 0.47

P(t) = 0.53

John von Neumann suggested a way to make perfectly fair​ decisions, even with a possibly biased coin.

He suggested to toss the coin twice, so the possible outcomes are

Sample space = {hh, ht, th, tt}

The probabilities of these outcomes are

P(hh) = P(h)*P(h)

P(hh) = 0.47*0.47

P(hh) = 0.2209

P(ht) = P(h)*P(t)

P(ht) = 0.47*0.53

P(ht) = 0.2491

P(th) = P(t)*P(h)

P(th) = 0.53*0.47

P(th) = 0.2491

P(tt) = P(t)*P(t)

P(tt) = 0.53*0.53

P(tt) = 0.2809

He suggested that if both tosses results in same outcome then discard the result and start again.

If each result is different then accept the first one, for example,

if you get heads on the first toss and tails on the second toss then result is heads.

if you get tails on the first toss and heads on the second toss then result is tails.

If you notice the probability of P(ht) and P(th) are same therefore, this strategy allows to make fair decision even when the coin is biased.

A circle with a diameter of 10 cm and a central angle of 30° is shown. What is the length, to the nearest tenth, of the arc formed by the 30° angle?

Answers

9514 1404 393

Answer:

  2.6 cm

Step-by-step explanation:

The full circle is 360°, so an arc of 30° will have 30/360 = 1/12 of the measure of the circumference of the circle.

  arc length = πd/12 = π(10/12) ≈ 2.6 cm

What is the sum of a regular octagon?

A.) 540

B.) 360

C.) 1080

D.) 900

Answers

Answer:

The answer is C.

Step-by-step explanation:

(n-2) * 180

(8-2) * 180

(6) * 180

1080

kevin built a deck in his backyard. The length of the deck was 5x+1 units and the width of the deck was 4x-1 units. Write and simplify an expression to repersent the perimeter of kevins deck.

Answers

Answer:

Perimeter =

[tex]2(length + width) \\ 2(5x + 1 + 4x - 1) \\ 2(5x + 4x + 1 - 1) \\ 2(9x ) \\ 9 \times 2 \\ = 18[/tex]

Mark bought a brand new car for $35,000 in 2008. If the car depreciates in value approximately 8% each year, write an exponential function to model the situation. Then, find the value of the car in 2015. Is this considered growth or decay?

Answers

Answer:

[tex]V(t) = 35000(0.92)^{t}[/tex]

Decay function

The value of the car in 2015 is $19,525.

Step-by-step explanation:

A exponential value function has the following format:

[tex]V(t) = V(0)(1+r)^{t}[/tex]

In which V(t) is the value after t years, V(0) is the initial value and 1+r is the yearly variation rate.

If 1+r>1, the function is a growth function.

If 1-r<1, the function is a decay function.

Mark bought a brand new car for $35,000 in 2008.

This means that [tex]V(0) = 35,000[/tex]

If the car depreciates in value approximately 8% each year

Depreciates, then r is negative. So [tex]r = -0.08[/tex]

Then

[tex]V(t) = V(0)(1+r)^{t}[/tex]

[tex]V(t) = 35000(1-0.08)^{t}[/tex]

[tex]V(t) = 35000(0.92)^{t}[/tex]

0.92 < 1, so decay function.

Then, find the value of the car in 2015.

2015 is 2015-2008 = 7 years after 2008. So this is V(7).

[tex]V(t) = 35000(0.92)^{t}[/tex]

[tex]V(7) = 35000(0.92)^{7}[/tex]

[tex]V(7) = 19525[/tex]

The value of the car in 2015 is $19,525.

Triangle DEF is congruent to TriangleGHJ by the SSS theorem. Which rigid transformation is required to map TriangleDEF onto TriangleGHJ?

Answers

Answer:

Rotation

Step-by-step explanation:

Given:  

Triangle DEF is congruent to Triangle GHJ by the SSS theorem

To find: transformation required to map Triangle DEF onto Triangle GHJ

Solution:

Two figures are said to be congruent if they overlap each other.

Two polygons are said to be congruent if they have same size and shape.

A rotation is a transformation that turns a figure about  the center of rotation.

Rotation transformation is required to map Triangle DEF onto Triangle GHJ

Answer:

translation

Step-by-step explanation:

Roberta grows pea plants, some in shade and some in sun. She picks 8 plants of each type at random and records the heights. Shade plant heights (in.) 7 12 12 8 9 8 8 8 Sun plant heights (in.) 19 24 20 23 24 23 23 20

Answers

Answer: 2.6

Step-by-step explanation:

Step 1: Calculate the mean of Shade's plant heights.

= 7+12+12+8+9+8+8+8/8

= 72/8

=9

Step 2: Calculate the range of Shade's plant heights. Range is highest minus lowest number. This will be:

12 - 7 = 5

Step 3: Calculate the mean of Sun plant heights.

19+24+20+23+24+23+23+20/8

= 176/8

= 22

Step 4: Find the range of Sun plants height.

= 24 - 19 = 5

Step 5: Find the difference of means

= 22 - 9

= 13

Step 6: Divide the difference of means by the range.

= 13 ÷ 5

= 2.6

The difference in mean and range are 13 and 0 respectively.

We are to find the difference in mean and range of the plant height.

Given the Shade plant heights expressed as 7 12 12 8 9 8 8 8

Mean =  7 + 12+12+ 8+ 9+ 8+ 8+ 8

Mean = 72

Sample size = 8

Mean of shade heights plant = 72/8 = 9

Range = Highest value - Lowest value

Range = 21 - 7

Range  = 5

Given the Sun plant heights expressed as 19 24 20 23 24 23 23 20

Mean =  19+ 24+ 20+ 23+ 24+ 23+ 23+ 20

Mean = 176

Sample size = 8

Mean of shade heights plant = 176/8 = 22

Range = Highest value - Lowest value

Range = 24 - 19

Range  = 5

Evaluate the difference in mean

Difference in mean = 22 - 9

Difference in mean = 13

Evaluate the difference in range

Difference in range = 5 - 5

Difference in range = 0

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In ΔFGH, f = 37 cm, ∠F=28° and ∠G=124°. Find the length of g, to the nearest 10th of a centimeter.

Answers

Answer:

  65.3 cm

Step-by-step explanation:

The law of sines can be used for this.

  g/sin(G) = f/sin(F)

  g = (37 cm)sin(124°)/sin(28°) ≈ 65.3 cm . . . . multiply by sin(G)

The length of g is about 65.3 cm.

Blake has only nickels and dimes. He has twice as many nickels as
dimes. The total value of his coins is 40 cents.​

Answers

Answer:

Blake has 2 dimes and 4 nickels

Step-by-step explanation:

2 dimes = 20 cents

4 nickels = 20 cents

20 + 20 = 40 cents

2 × 2 = 4 dimes

Final answer:

Explanation of the relationship between the number of nickels and dimes in a coin collection yielding a total value of 40 cents.

Explanation:

Problem Statement:

Blake has only nickels and dimes. He has twice as many nickels as dimes. The total value of his coins is 40 cents.

Solution:

Let the number of dimes be 'x', so the number of nickels is '2x'.

Value of dimes = 10x cents, value of nickels = 5(2x) = 10x cents.

Given total value is 40 cents, so 10x + 10x = 40.

Solving the equation, x = 2. Therefore, Blake has 2 dimes and 4 nickels.

Solve the inequality |4x+2|<26

Answers

Answer:

-7<x<6

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variables

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What is the volume of a cone with a radius of 4 centimeters and a height of 10 centimeters? Cone V = 1 3 Bh 1. Rewrite the formula for the base area: V = 1 3 r2h 2. Substitute the values into the formula: V = 1 3 (42)(10) 3. Evaluate the power: V = 1 3 (16)(10) 4. Simplify to find the volume of the cone to be Pi centimeters cubed. One way the United States prepared for fighting World War 2 was..... Savannah drove 716 miles on Monday. She drove another 572 miles on Tuesday. About how many miles did she drivealtogether? Margaret Company reported the following information for the current year: Net sales $3,000,000 Purchases $1,957,000 Beginning Inventory $245,000 Ending Inventory $115,000 Cost of Goods Sold 65% of sales Industry Averages available are: Inventory Turnover 5.29 Gross Profit Percentage 28% How do the inventory turnover and gross profit percentage for Margaret Company compare to the industry averages for the same ratios? (Round inventory turnover to two decimal places. Round gross profit percentage to the nearest percent.) Anna has 7 pairs of yellow socks, 8 pairs of red socks, and 2 pairs of blue socks mixed together in a drawer. All pairs of socks are identical except for their colors. What is the smallest number of socks she has to take out without looking to make sure she has 2 matching pairs of socks In your own words, explain the difference between push and pullfactors? What is the molarity (concentration) of 2.53 L of NaOH which exactly neutralizes 5.0L of 1.25 M HCl? Which of the follow are characteristics of the Republican Party? Donkey is the symbolsupports gun rightssupports government interventionsBig in Northeast, West Coast, and large citiesPopular in Southern United StatesElephant is the symbol Alex and hope were trying to solve -6x > 24. Whose inequality shows the solution? Show your work.(Alex's inequality is x > -4)(Hope's inequality is x < -4) PLEASE HELP ASAP 20 POINTS List the five areas the pentad should cover. replace the word determined with a synonym. A locked B forced C decided D increased Descartes believed in faith. Please select the best answer from the choices provided T F The thirteen amendment to the U.S Constitution affected the lives of millions of African americas by find the perimeter of a right triangle whose hypotenuse is 2 and whose area is 1. What are three events that led to the civil war? Plz explain cannot get this wrong ! The volume of a cone is 565.2 cubic inches. The height of the cone is 15 inches. What is the radius of the cone, rounded to the nearest inch? (Use = 3.14.) (1 point)Group of answer choices361836 After Lincoln's election to the presidency in 1860, which political icon called for Georgia to remain in the Union?A)Joseph BrownB)Robert ToombsC)Howell CobbD)Alexander Stephens Heat is transferred at a rate of 2 kW from a hot reservoir at 875 K to a cold reservoir at 300 K. Calculate the rate at which the entropy of the two reservoirs changes. (Round the final answer to six decimal places.) The rate at which the entropy of the two reservoirs changes is kW/K. Is the second law satisfied? 4. A ramp is being constructed with wood and then filled with concrete. How many cubic feet of concrete will be needed to complete the ramp? How many miles did the cherokees travel to get to Indian territory?" Steam Workshop Downloader