The average of four numbers is 90. If three of the numbers are 70 .85, and 95. what is the fourth number?

Answer: See explanation

Step-by-step explanation:

7.) (0, 2)

Slope of (0, 2) and (-10, -16) = 2 - (-16) ÷ 0 (-10) = 18/10 = 9/5

8.) a. Slope of (17, -12) and (17, 8)

8 - (-12) ÷ 17 - 17 = 20 ÷ 0 = undefined

b. Slope of (6, -2) and (-3, 1)

1 - (-2) ÷ -3 - 6 = 3/-9 = -1/3

9.) (-3, 33) and (4, -9)

-9 - 33 ÷ 4 - (-3) = -42/ 7 = -6

10.)  Hourly: c = 75h + 15

c - charge

h - hours

1 hour

c = 75 (1) + 15

c = 75 + 15 = 90

The hourly charge for services is $90.

11.) C. A newborn weighs 8 pounds and gains 1.5 pounds each month for the next 3 months.

Answer: 36

Step-by-step explanation:

you multiply 9 by 4 to get 36.

Answer: C

Step-by-step explanation:

Length = x+6

Width = 2(x+6)

Area = x+6*2x+12

        =  2[tex]x^{2}[/tex]+72

Answer:

        .  

Step-by-step explanation:

Answer:

If we are solving for x then the answer is x = 10

Step-by-step explanation:

To solve for x we must first get all the variables to one side

so subtract 1x from both sides

1.50x = 15

divide 1.50 both sides

x = 10

Answer:

area of rectangle= length x width

height 4x and width = 3x+1

area of recatangle=4x(3x+1)

=12x^2+4x

perimeter of recatangle=4x+3x+1+4x+3x+1=14x+1

Step-by-step explanation:

h×I×w

;

8×6×4

= 192

hope it helps

Answer:

c. 5 units

Step-by-step explanation:

because if ABC and cda are congruent then that means they are the same and since AD and BC are across each other they thay would be the same.

Answer:

volume of the new box = 12 x volume of the initial rectangular box

Step-by-step explanation:

Let the length, width and height of the rectangle be represented by l, w and h respectively.

The volume of a rectangle is given as;

volume = l x w x h

             = lwh

From the given question, the dimension of the rectangle are:

new length = l + l = 2l

new width = w + w = 2w

new height = h + h + h = 3h

So that, the volume of the new box is given as;

volume of the new box = 2l x 2w x 3h

                                       = 12 (lwh)

Therefore,

volume of the new box = 12 x volume of the initial rectangular box

Answer:

x=-273

Step-by-step explanation:

first you move the constant to the right. it should look like this(x=652-925)

then you subtract and you should get -273

the following statement is not true is number 4

Answer:

There are no simple factors to this expression.  You can however solve for x, giving you:

x = -1 ± √(y + 3)

Step-by-step explanation:

There is no simple pair of factors to this equation, so we'll have to go through the full process.  You can see that by observing that there is no pair of rational numbers that add to make 2 and multiply to make -2.  We can however solve for x:

[tex]y = x^2 + 2x - 2\\y + 2 = x^2 + 2x\\y + 3 = x^2 + 2x + 1\\y + 3 = (x + 1)^2\\(x + 1)^2 = y + 3\\x + 1 = \pm \sqrt{y + 3}\\x = -1 \pm \sqrt{y + 3}[/tex]

Slope = 2

Y intercept = -3

====================================================

Explanation:

We'll use the template y = mx+b

m = slope

b = y intercept

The y intercept always occurs when x = 0. In this case, b = -3 due to the first row of the table.

The slope is m = 2 because each time we increase x by 1, the y value goes up by 2.

So we can say

m = slope = (rise)/(run) = (change in y)/(change in x) = (2)/(1) = 2

Or we can apply the slope formula

m = (y2-y1)/(x2-x1)

using any two points of the table.

--------------------

Since we know m = 2 and b = -3, this means we get

y = mx+b

y = 2x+(-3)

y = 2x-3

Answer:

1 solution - 6

Step-by-step explanation:

add 9 on both sides

3x = 18

divide by 3 on both sides

x = 6

u can solve them using 3 solutions

-rewrite in standard form

-rewrite in implicit form

-graphing

Answer:

[tex]→3.14 \times \frac{2}{1000} \times 3.14 \\→ 3.14 \times 0.002 \times 3.14 \\→ \boxed{0.0197192}✓[/tex]

Answer:

4 i belive x = 4

Step-by-step explanation:

9 divided by 3 = 3

12 divided bye 3 = 4

Answer:

x = 3

Step-by-step explanation:

Since the two legs of the outer triangle equal the same (12), it is safe to assume the two legs of the inner triangle will equal the same. Therefore, x is equal to 3.

Answer:

The required function is:

[tex]C(x) = 150+0.45x[/tex]

Step-by-step explanation:

We have to represent the given scenario as an equation or function

Let x be the number of miles driven in a week

Let C(x) be the function of the number of miles driven

As it is given that charges are 150 per week, these charges are constant so they will be used as it is.

It is also given that the cost of car is 0.45 per mile so for x miles the cost will be:

0.45x

Combining both terms, we get

[tex]C(x) = 150+0.45x[/tex]

Hence,

The required function is:

[tex]C(x) = 150+0.45x[/tex]

Answer:

-8.2 + (-5)

Step-by-step explanation:

I got you queen

Answer:

7%

Step-by-step explanation:

Answer:

what are your answer choices?

Step-by-step explanation:

Answer:

you have a 50/50 chance of rolling anything

Step-by-step explanation:

so it would be like in a fraction 1/2

Answer:

144

Step-by-step explanation:

Answer:

The graph is nonlinear

Step-by-step explanation:

Answer:

Amelia rented a DVD and it was due to be returned on 26 November. She actually returned it to the shop on 12 December. The rental shop applies a fine of 9p for every day the DVD is overdue.

Work out the total fine paid by Amelia. Give your answer in £

Answer: i think is

f= 17/4 is what i got   ∩· ω · ∩

Step-by-step explanation:

Step-by-step explanation:

- 12x + 10 = - 14

- 12x = - 14 - 10

- 12x = - 24

x = - 24 / - 12

x = 2

Hope it will help :)

Answer:

118

Step-by-step explanation:

Step-by-step explanation:

6({-4b+14}÷6)+4b-14

-4b+14+4b-14

0

Answer:

Positive Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36

Negative Factors of 36 are – 1, – 2, – 3, – 4, – 6, – 9, – 12, – 18, and – 36

Step-by-step explanation: