Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y=-x-1 y=x+3

Answer:

The answer is 0.4

Step-by-step explanation:

Since we do multiplication first, we do 0.2*0.5. That equals 0.1.

Next, we do addition. 0.3+0.1 is 0.4.

Answer:

.4

Step-by-step explanation:

First, multiply .2 by .5 which is .1

add this to .3 and you get .4

Your answer is .4

Answer: THEIR HIDEOUT MUST BE CLOSE TO THE SCHOOL

Step-by-step explanation: U= 1  L=0  R= -2  I=24  M=17  H= -3  E=100  S= -439  O=11  B= -6  T= -41  D= 19  C=206

Answer:

3/4 3/6 5/12

Step-by-step explanation:

the bottom goes from least to greatest

ok so divide 1500 by 250 to determine how many boxes you need to by in 1 year

so that equals 6 then you multiply that by $30 to find the total cost of all the diapers per year so the is $180 per year and then multiply that by 3 to find the cost of all 3 years

So the answer is you will spend $540 in total

Answer: you will spend $540 on diapers total.

Answer:

sqrt(221)

Step-by-step explanation:

The distance between two points is found by

d =sqrt( (y2-y1)^2 + (x2-x1)^2)

  = sqrt( (2-12)^2 + (14-3)^2)

  = sqrt((-10)^2 + (11)^2)

  = sqrt( 100+121)

 = sqrt(221)

Answer:

$7.40

Step-by-step explanation:

https://sciencing.com/calculate-cost-per-pound-7595889.html

use this

Answer:

2 and 5

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

3,-4

Step-by-step explanation:

Answer: (9,11)

Explanation: if you plot (9,11) on a grid you can see that the length between 3 and 9 is 6. And the length between 9 and 11 is 6. 6 times 6 is 36. The two length have to be equal to each other because it is a square.

Answer:

is an equation in which a variable is under a radical

Answer:

An equation where the radical is under the equation...

Step-by-step explanation:

Right?

Answer:y=\frac{1}{2} x-4

Step-by-step explanation:

Slope intercept form of the equation of a line is y = mx+b where m is the slope and b is the y intercept. Plugging in 1/2 for m and -4 for b gives y = 1/2x + (-4) then simplifying adding a negative means subtracting.

The equation of the line is y = (1/2)x - 4, where the slope is 1/2 and the y-intercept is -4.

Explanation:

The equation of a line in slope-intercept form is y = mx + b, where m represents the slope and b represents the y-intercept.

In this case, the slope is 1/2 and the y-intercept is -4, so the equation of the line is y = (1/2)x - 4.

The slope of 1/2 means that for every increase of 1 on the horizontal axis, there is a corresponding increase of 1/2 on the vertical axis.

Learn more about Slope-intercept here:

https://brainly.com/question/29146348

#SPJ3

Final answer:

By setting up a system of equations based on the provided information and solving them, we can determine that there were 5 adults in the group that attended the circus.

Explanation:

To determine how many adults were in the group at the circus, let's use variables to represent the number of students and adults in the group. Let x be the number of students and y be the number of adults. We know there are a total of 9 people, so we have the equation:

x + y = 9

The total cost for all tickets is $60, and considering the cost for students is $5 and for adults is $8, we have the equation:

5x + 8y = 60

We now have a system of equations that can be solved using the substitution or elimination method. If we solve for x in the first equation (x = 9 - y) and substitute into the second equation:

5(9 - y) + 8y = 60

45 - 5y + 8y = 60

3y = 15

y = 15 / 3

y = 5

There are 5 adults in the group. Now, we can find the number of students by substituting y back into the first equation:

x + 5 = 9

x = 9 - 5

x = 4

So, there are 4 students in the group.

Answer:

Its 19,500

Step-by-step explanation:

Answer:

Option A. $19,500

Step-by-step explanation:

A smart phone manufacturer uses 10 ounces of gold circuitry to make 5,200 smartphones.

We will solve this problem by unitary method.

In 5200 smartphones use of gold = 10 ounces

in 1 smartphone use of gold = [tex]\frac{10}{5200}[/tex] = 0.001923 ounces

In 7,800 smartphones, use of gold = 0.001923 × 7800 = 14.999 ounces rounded to 15 ounces of gold

Last month the value of 1 ounce gold is $1,300

The value of 15 ounces = 1,300 × 15 =  $19,500

The value of gold used last month is $19,500.

[tex]5(3x + 8) \\ 15x + 40[/tex]

Hope that helped

Answer:

15x+40

Step-by-step explanation:

Use the Distributive Property

Answer:

87.5(the first one)

Step-by-step explanation:

first simplify 4 to the 5th power(20) and multiply by 4 to the -7th(-35) and you will get -700 divide that by 4 to the -2nd(-8) and you will get 87.5

Ok so I got 87.5 for the first one but I don't know about the other ones

Answer:

10

Step-by-step explanation:

If a board is 3.75 inches wide and he wants the table to be at least 36 inches wide, then we need to use the rule of three:

If a 1 board ---------------------------> 3.75 inches wide

    x             ---------------------------> 36 inches wide

x = (36 inches wide * 1 board)/3.75

x= 9.6 boards.

Like we cannot buy 9.6 boards, then we conclude that the least number of boards he can use is 10.

what expression?

if you have an expression then I could probably help you.

Answer: Option C

Step-by-step explanation:

The graph is of the quadratic equation is a parabola.

The parabola intercepts the x-axis when [tex]y=0[/tex].

Then, you need to substitute [tex]y=0[/tex] into the equation:

[tex]y=x^2+2x-8\\0=x^2+2x-8[/tex]

Factor the quadratic equation: find two number that when you add them you get 2 that when you multiply them you get -8. In this case these numbers are -2 and 4. Then:

 [tex]0=(x-2)(x+4)\\\\x_1=2\\x_2=-4[/tex]

Therefore, the x-intercepts are:

 (-4,0) and (2,0)

Answer:

A)$1667 in 7.5%, $833 in 6%

Step-by-step explanation:

You need to average 7% interest.

initial investment = $2500

7% of $2500 = [tex]\frac{7}{100}[/tex] × 2500  ⇒ (0.07 ) × (2500) ⇒ $175

so the combined interest from both accounts should be $175

Checking options:

A)$1667 in 7.5%, $833 in 6%                      ∵ 7.5 % = 0.075  

(1667 × 0.075) + (833 × 0.06)                             6 % = 0.06

125.025 + 49.98 ⇒ 175.005

B) $1833 in 7.5%, $667 in 6%

(1833 × 0.075) + (667 × 0.06)

137.475 + 40.02 ⇒ 177.495

C)$667 in 7.5%, $1833 in 6%

(667 × 0.075) + (1833 × 0.06)

50.025 + 109.98 ⇒ 160.005

D)$833 in 7.5%, $1667 in 6%

(833 × 0.075) + (1667 × 0.06)

62.475 + 100.02 ⇒ 162.495

Option A is the closest to average7% interest of $2500, which is $175.

Answer:

Step-by-step explanation:

If it is Tanya and 3 friends, there are 4 people in total. If they all contributed the saem amount, you would do 75/4= 18.75 dollars each

Answer:

A; the rate of change is the same

Explanation:

The graph and the table appear to be the same

Answer:The rates change are equal. The graph has a greater rate change. The table has a greater rate change. So none of the above

Answer:

C)A=-8x^2,b=6x^3,c=-23x

Step-by-step explanation:

As per vertical Method to multiply

for A

1st partial product = -4(5x^3-2x^2+2x+5), so 2nd term i.e. A is

-4 (-2x^2)= 8x^2

for B

2nd partial product= -3x(5x^3-2x^2+2x+5), so 2nd term i.e. B is

-3x(-2x^2)=6x^3

for C

Final product= sum of two partial products, C is

-8x-15x=-23x

!

Answer:

455.

Step-by-step explanation:

Yes. You require the number of combinations of 3 from 15.

15C3

The formula for this is   15! / 12! 3! or you can do itr as follows

15C3 = 15*14*13/3*2*1

= 5*7*13

= 35*13

= 455.

Answer:

[tex]f^{-1}(x)=\sin ^{-1}(x-\frac{\pi}{2})[/tex]

Step-by-step explanation:

The given function is

[tex]y=\frac{\pi}{2}+\sin x[/tex]

To find the inverse of this function, we interchange x and y.

[tex]x=\frac{\pi}{2}+\sin y[/tex]

we now solve for y.

[tex]x-\frac{\pi}{2}=\sin y[/tex]

Take the sine inverse of both sides to obtain;

[tex]\sin ^{-1}(x-\frac{\pi}{2})=y[/tex]

Hence the inverse of the given function is;

[tex]f^{-1}(x)=\sin ^{-1}(x-\frac{\pi}{2})[/tex]

where [tex]\frac{\pi}{2}-1\le x\le \frac{\pi}{2}+1[/tex]

Answer:

what that guy said

Step-by-step explanation:

Answer:

the answers are interquartile range and mean absolute deviation

Step-by-step explanation:

In statistics, measures of variability are Interquartile Range and Mean Absolute Deviation, which indicate the degree of spread in a data set. However, the Mean is a measure of central tendency, not variability.

In the context of statistics, measures of variability are statistical data that highlight the degree of the spread in a data set. These are measures that can help us to identify how much the values in the data set differ from their mean value. Out of the options provided, II. Interquartile Range and III. Mean Absolute Deviation can be classified as measures of variability.

The Interquartile Range (IQR) is a measure of statistical dispersion and is calculated as the difference between the 75th and 25th percentiles. It’s the range within which the center half of a data set lies. The Mean Absolute Deviation (MAD) is the average distance between each data value and the mean.

However, I. Mean is not a measure of variability but rather a measure of central tendency. It helps to identify the central point or typical value of a data set but does not represent the dispersion of data points.

https://brainly.com/question/31636027

#SPJ6

Answer:

Step-by-step explanation:

Answer: An infinite number

Multiply both sides of the equation by 12

12  [ 3/4 (24 - 16x) = - 2/3 (18x - 27) ]

3*3(24 - 16x) = - 2 * 4 (18x - 27)

9 ( 24 - 16x) = - 8(18x - 27)          

Remove the brackets.

216 - 144x = -  144x + 216

Any value for x will preserve the equality. Nice problem.

Final answer:

The equation 3/4(24-16x)=-2/3(18x-27) simplifies to an identity, implying that there are infinitely many solutions for x. Values like x=3 or x=-7 will satisfy the equation, which is a characteristic of an identity.

Explanation:

The equation in question is 3/4(24-16x)=-2/3(18x-27). To find the number of solutions, we begin by simplifying both sides and then solving for x. Let's do this step by step:

As a check, we can attempt to substitute possible values for x such as x=3 or x=-7 into the equation, and we'll find that they satisfy the equation, confirming our result.

C would be my guess, I just take the first letter w/o the apostrophe, and move it by each rule and see if it matches up with the letter with the apostrophe.

Answer:

C, (x,y) → (x + 8, y - 3)

Step-by-step explanation:

we can locate one point on the shape and use that as a reference point to see where it goes.

ABCD is the original shape, while A'B'C'D' is the translated shape

we start at ABCD, for this shape i picked the point B to follow

we count how many units the point B goes in order to get to B'. we start on the x axis, and see that it goes 8 units to the right. this is an increase, as its rising in value

from there, we follow the y axis, moving 3 units down. this is a decrease, as we are going 3 units down

so according to what we have moved in order to get from B to B', we moved 8 to the right so we have x + 8, with x being the x-coordinate the point was previously on. we have moved 3 units down to get from B to B', which is y - 3, with y being the y-coordinate the point was on previously

the answer to this is C, (x,y) → (x + 8, y - 3)

The residual value is -8

A residual value is the difference between the observed y-value and the predicted y-value( from the regression equation ) .

Here, the given regression equation of the line,

y = 5.2 x +18

Thus, for x = 10, the predicted value of

y = (5.2 × 10) +18

y = 52 + 18

y = 70

Now, by the given question,

For x = 10, the observed value of y = 62,

Hence, the residual for 10 = Observed value of y for 10 - Predicted value of y for 10

= 62 - 70

= -8

For more information:https://brainly.com/question/12606018

#SPJ2

Answer:

A.) 40(t) = E

B.) 520

Step-by-step explanation:

t is for time, E is the total, H is the hourly rate.

plug in the numbers to get 40(13) = h and solve for H and you get 520

-- Brainliest answer is much appreciated! :)

An equation is formed of two equal expressions. Mary's earnings after tutoring for 13 hours is $520.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

Given that for each hour that Mary tutors she earns 40 dollars. Therefore, the equation to find marys earnings after tutoring for H hours can be written as,

Earnings = Hourly rate of tutoring × Number of hours

E = 40 × H

E = 40H

Now, Mary's earnings after tutoring for 13 hours will be,

E = 40(13)

E = 520

Hence, Mary's earnings after tutoring for 13 hours is $520.

Learn more about Equation here:

https://brainly.com/question/14686792

#SPJ2

Answer:

THe 3rd one

Step-by-step explanation:

Number 3 should be the answer

Answer:

5,1 is correct

Step-by-step explanation:

you go over one then up two for G. For H, you go down one and over two.

5,1 because they are both the same distance from F