what’s the missing angle

Answer:

answer is B 77

Step-by-step explanation:

got it right on edg 2020-2021

The nearest whole degree is 77

In mathematics, trigonometric functions are real functions that relate an angle of a right-angled triangle to ratios of two side lengths. The six trigonometric functions are Sine, Cosine, Tangent, Secant, Cosecant, and Cotangent.

Given here: ABC is a right angle triangle AC=9, BC=2 and AB=8.77

The formula for law of cosines is given by a²=b²+c²-2bcosA

                                                                      81=4+76.9129-2×2cos A

                                                                      0.0871=-4Cos A

                                                                        cos A=-0.21775

                                                                                A=77.43208

Hence, The nearest whole degree is 77

Learn more about trigonometric functions here:

https://brainly.com/question/6904750

#SPJ6

Answer:140.3

Step-by-step explanation:

Answer:

140.3

Step-by-step explanation:

Answer:

<EAD = 31*

Step-by-step explanation:

Because, <CAB is similar in angle measurement

Answer:

70

Step-by-step explanation:

So I assumed that the x was multiplication...so...15x3=45 and 33x5=165...so the perimeter is 210, so you divide that by 3 and the answer is 70!

Answer:

3 dogs, $15

5 dogs, $25

Step-by-step explanation:

Jane charges $5 per dog.

When she walks 3 dogs ;

1 dog = $5

3 dogs = x

x × 1 dog = $5 × 3 dogs

x= $5 × 3 dogs/ 1 dog

x= $5 × 3 = $15

When Jane Walks 5 dogs she receives,

y= $5 × 5

y= #25.

For 3 dogs, Jane would charge $15. For 5 dogs, she would charge $25. You find these amounts by multiplying the number of dogs by the charge per dog, which is $5.

Since Jane charges $5 for each dog she walks, you can find the charge for any number of dogs by multiplying the number of dogs by 5.

For 3 dogs, she would charge $15 (3 dogs x $5 per dog = $15).

For 5 dogs, she would charge $25 (5 dogs x $5 per dog = $25).

So, the completed table would look like this:
Dogs | Charge in dollars
1 |$5
3 |$15
5 |$25

https://brainly.com/question/35502092

#SPJ3

Answer:

f is decreasing on the interval from x = 1 to x = 2.

Step-by-step explanation:

f has a relative minimum when f' changes signs from - to +.

f has a relative maximum when f' changes signs from + to -.

f is decreasing when f' is negative.

f' is not changing signs at x=-1.5 or x=1.5, so neither of these are minimums or maximums of f.  However, f does have relative minimums at x=-3 and x=2, and a relative maximum at x=1

f' is negative between x=1 and x=2.  So f is decreasing in this interval.

Answer: 1.57

Step-by-step explanation:

When solving for the arc you have to find the circumference.

For circumference you'll need the diameter which is 2x the radius.

So, your equation would be

1/4{(pi)(2)} = x

or

1/4{(3.14)(2)} = x

To Solve:

3.14 times 2 equals 6.28

Divide by 4 or multiply by 1/4 to get 1.57

Not sure if this is correct, I haven't learned the topic myself, but this week's to be there most reasonable way to look at it. For me anyway.

The arc length of a partial circle can be calculated using the formula Arc length = (θ/360) * 2πr, where 'θ' is the angle of the sector in degrees and 'r' is the radius of the circle. This is applicable in high school Mathematics.

The subject of your question is the arc length of a partial circle, a concept in Mathematics. The arc length of a partial circle can be calculated using the formula: Arc length = (θ/360) * 2πr, where 'θ' is the angle of the sector in degrees and 'r' is the radius of the circle.

For instance, if a circle has a radius of 8 units and the angle of the sector is 60 degrees, the arc length can be calculated as follows: Arc length = (60/360) * 2 * 3.14 * 8 = 8.38 units (in terms of 3.14 for n π). Using n π, the exact answer would be expressed as: Arc Length = 4π/3 units.

https://brainly.com/question/31647763

#SPJ2

Answer:

x = 42

Step-by-step explanation:

sin theta = opposite / hypotenuse

sin x = 6/9

Take the inverse of each side

sin ^-1 sin x = sin ^-1 (6/9)

x =41.8103149

To the nearest degree

x = 42

Answer:

did u also u 3.14 as pie too help u cause that what u are going to have to do

Answer:

the 1st and 3 and 2end one its the right one

Step-by-step explanation:

Answer:

its the first three answers :)

Step-by-step explanation:

The ratio 3:3 signifies equality between two quantities and an equivalent ratio can be found by scaling both parts by the same number. Dividing both parts by 3 gives us the simplest form, which is 1:1.

A ratio compares two quantities and can be written in various forms such as fractions, with a colon, or with the word "to". The ratio 3:3 is an expression comparing two equal quantities. To find an equivalent ratio, we can simplify or scale the ratio by multiplying or dividing the numerator and denominator (the two parts of the ratio) by the same number.

In this case, dividing both parts of the ratio 3:3 by 3 gives us an equivalent ratio of 1:1, which also represents equality between two quantities. Multiplying both parts by a common number will also produce an equivalent ratio. For example, multiplying 3:3 by 2 gives us 6:6, which is still equivalent. It's essential to maintain the equality of the two parts when finding an equivalent ratio.

Ratios can be applied to various situations, including unit conversions, scale factors, proportions, and comparisons in scientific experiments, such as the ratio of amplitudes in a double-slit experiment in Physics.

1. On Monday, about 86 letters were delivered incorrectly out of 430.

2. On Tuesday, approximately 625 letters were delivered in total.

1. For Monday:

Given an 80% chance of delivering correctly, the expected number of letters delivered incorrectly is 20% of 430:

[tex]\[ 0.20 \times 430 = 86 \text{ letters} \][/tex]

2. For Tuesday:

If 500 letters were delivered correctly, it means 100% - 80% = 20% were delivered incorrectly. So, the total number of letters delivered is:

[tex]\[ \frac{100}{80} \times 500 = 625 \text{ letters} \][/tex]

Complete Question:

Answer:

C. Parabola

Step-by-step explanation:

A line parallel will cut only one cone (upper or lower cone, not both) making it a parabola

Answer:

22.28

Step-by-step explanation:

Answer:

[tex]5(x-2)^2[/tex]

Step-by-step explanation:

[tex]5x^2-20x+20=\\5(x^2-4x+4)=\\5(x-2)^2[/tex]

Answer:

2/3

Step-by-step explanation:

m is the variable for slope

the equation of a line

is y=mx+b

the slope is next to the x

Answer:

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

Step-by-step explanation:

[tex]Think \: of \: y = mx + b \\ \\ m\: is \: the \: slope \\ b \: is \: the \: y \: intercept \\ \\ So, \: since \: \frac{2}{3} \: is \: on \: the \: m \: the \: slope \: is \\ \frac{2}{3}[/tex]

Answer:

12.5%

Step-by-step explanation:

Answer:

[tex]\frac{1}{8}[/tex].

Step-by-step explanation:

To solve this, we will first need to think about the probability of getting "tails". A coin has two sides, meaning landing on "tails" would result in a probability of [tex]\frac{1}{2}[/tex] per toss.

In the question, a total of 3 tosses is given. This means we will need to multiply the probability 3 times:

[tex]\frac{1}{2}[/tex] ×[tex]\frac{1}{2}[/tex] ×[tex]\frac{1}{2}[/tex] = [tex]\frac{1}{8}[/tex] .

Answer:

7

Step-by-step explanation:

2 time 7 = 14-1 = 13

Answer:

x=7

Step-by-step explanation:

Collect like terms

2x=13+1.

2x=14

Divide both side by 2

[tex] \frac{2x}{2} = \frac{14}{2} [/tex]

x=7

Answer:

Step-by-step explanation:

This is a test of 2 population proportions. Let a and b be the subscript for people from region A and region B. The population proportions would be pa and pb

pa - pb = difference in the proportion of people from region A and region B.

The null hypothesis is

H0 : pa = pb

pa - pb = 0

The alternative hypothesis is

H1 : pa ≠ pb

pa - pb ≠ 0

it is a two-tailed test

Sample proportion = x/n

Where

x represents number of success

n represents number of samples

For region A,

xa = 16

na = 100

pa = 16/100 = 0.16

For region B,

xb = 24

nb = 100

pb = 24/100 = 0.24

The pooled proportion, pc is

pc = (xa + xb)/(na + nb)

pc = (16 + 24)/(100 + 100) = 0.2

1 - pc = 1 - 0.2 = 0.8

z = (pa - pb)/√pc(1 - pc)(1/na + 1/nb)

z = (0.16 - 0.24)/√(0.2)(0.8)(1/100 + 1/100) = - 0.08/√0.0002891223

z = - 1.41

Since it is a 2 tailed test, we would find the p value by doubling the area to the left of the z score to include the area to right.

Area to the left from the normal distribution table is

0.07927

P value = 0.07927 × 2 = 0.16

Since 0.05 < 0.16, we would accept the null hypothesis

Therefore, the data does not provide convincing statistical evidence that there is a difference between the two regions for the population proportions of people who shop online for groceries.

Final answer:

To determine if the differences in grocery shopping habits between two regions are statistically significant, a two-proportion z-test is conducted. We first state the null and alternative hypotheses, calculate the test statistic, find the p-value, and make a decision based on the significance level of 0.05.

Explanation:

To evaluate if there is a significant difference between the population proportions of people who shop online for groceries in two regions, we need to conduct a two-proportion z-test. The steps are as follows:

In this scenario, with 16% of 100 people from Region A and 24% of 100 people from Region B indicating they shop for groceries online, a two-proportion z-test will reveal if the observed difference is statistically significant at the 0.05 level.

Answer:

m <1 = 30

Step-by-step explanation:

The sum of the angles of a triangle add to 180

Let x be the unknown angle

75+75+x = 180

Combine like terms

150+x =180

Subtract 150 from each side

150-150+x = 180-150

x = 30

Answer:

about 141.37

Step-by-step explanation:

pi x 20 (h) x 1.5 (r)

radius is half of diameter :)

Answer:

141.37

Step-by-step explanation:

Would you mind giving me brainliest?

Answer:

$61

Step-by-step explanation:

To determine the cost per person to attend these events, you have to add the cost of the tickets for the concert plus the cost of the tickets for dinner theater. After finding the total amount that was spent, you have to divide this by 4 that is the number of people:

Total cost= $104+$140

Total cost= $244

Cost per person= $244/4

Cost per person= $61

According to this, the cost per person to attend these events is $61.

Answer:

Cost of first event: $26 per person

Cost of second event: $35 per person

Cost of both events together: $61 per person

Step-by-step explanation:

In the first event, the four people spent $104, so the cost per person of this event is:

104 / 4 = $26

Each person pays $26 for this event.

For the second event, the four people spent $140, so the cost per person of this event is:

140 / 4 = $35

The cost per person to attend both events together is:

26 + 35 = $61

Answer:

c

Step-by-step explanation:

Answer:

-16x^4 - 12x^3 + 70x² + 54x + 9

Step-by-step explanation:

(-2x² + 9)(8x² + 6x + 1)

-16x^4 - 12x^3 -2x² + 72x² + 54x + 9

-16x^4 - 12x^3 + 70x² + 54x + 9

I am pretty sure that this is the answer.

Tell me if I am wrong.

Can I get brainliest

Sorry, It wont let me put my answer.

Answer:

The area he can cover with that weapon is 1,256 miles².

Step-by-step explanation:

Assuming that the Jedi won't move and that he can shoot in every direction, he'd be shooting at a circle with a radius of 20 miles. Therefore the are that he can cover with that weapon is the area of the circle, which is shown below:

area = pi*r²

area = 3.14*(20)²

area = 3.14*400

area = 1,256 miles²

The area he can cover with that weapon is 1,256 miles².

The area a projectile can land in can be determined by considering the distance the missile can travel as the circle's radius. The area of this circle, calculated by the formula A = πr², is the area the shell can land in.

The area where the projectile can land is determined by considering the weapon as the centre of a circle and the possible distance it can travel as the radius. This forms a circular area where the projectile can land. The area A of a process is calculated using the formula A = πr², where r is the circle's radius.

Here, our radius is 20 miles, the distance the projectile can travel. Therefore, we substitute this distance into our formula to find the area:

A = π(20)²

Calculating the above will give you the area that the projectile can land in.

https://brainly.com/question/30530884

#SPJ12

Answer:

the answer is b. (since you accidentally typed 759 not 750)

Step-by-step explanation:

The formula for simple interest is

A = P (1 + rt)

A = final amount

P = initial principal balance

r = annual interest rate

t = time (in years)

and the interest is going to be 750 after you plug it in, they are not asking for the amount of money total, but the amount of interest earned.

3 percent simple interest for 5 years means you are getting 0.03 percent of money from the 5,000 initial value and for 5 years. The total interest is $750.

I hope this helped! :)

You can get 12 servings of 2/3 cup each from an 8-cup container of juice. You find this by dividing the total volume (8 cups) by the volume of each serving (2/3 cup).

To find out how many 2/3 cup servings you can get from an 8-cup container of juice, you simply divide the total volume by the volume of each serving.

In this case, you divide 8 (the total volume) by 2/3 (the volume of each serving). Here are the step-by-step calculations:

So, you can get 12 servings of 2/3 cup each from an 8-cup container of juice.

https://brainly.com/question/18511795

#SPJ11

Answer:

[tex]\frac{23}{24}[/tex]

Step-by-step explanation:

1/8 of the stones in Johnny's bowl are red and 5/6 of the stones are white.

The fraction of stones that are red or white is obtained by adding the fraction that are red with the fraction that are white. That is:

[tex]\frac{1}{8} + \frac{5}{6} = \frac{23}{24}[/tex]

The fraction of the stones that are red or white is [tex]\frac{23}{24}[/tex].

Follow below steps:

The fraction of Johnny's stones that are white or red can be calculated by adding the fractions of white and red stones.

Given that 1/8 of the stones are red and 5/6 of the stones are white:

Red stones: 1/8

White stones: 5/6

Total fraction of white or red stones: 1/8 + 5/6 = 5/24 + 20/24 = 25/24

Since the total is greater than 1, it indicates a mistake in the initial information provided.

Answer:

(A)x+3y=3 and 2x-y=-2

Step-by-step explanation:

In the attached graph

The point of the intersection of the orange and green line has an approximate solution of (-0.4,1.1).

Therefore, the system of equation which has the approximate solution is: x+3y=3 and 2x-y=-2

The correct option is A

Answer:

A

Step-by-step explanation: