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Tems11 [23]
3 years ago
12

T

Mathematics
1 answer:
OLEGan [10]3 years ago
8 0

Answer:

108in^2

Step-by-step explanation:

<u>Because</u> the rule says that you should multiply them by each other

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A parking garage charges $5.50 to park for 4 hours and $7.75 to park for 7 hours. If the cost is a linear function of the number
Veseljchak [2.6K]
Given:
hours     parking charge
4                 5.50
7                 7.75

7 - 4 = 3 hours
7.75 - 5.50 = 2.25

2.25 / 3 = 0.75

0.75 is the change in amount for every hour spent. It is the variable unit rate

4 hours is 5.50.

Cost of parking for 3 hours is: 5.50 - 0.75 = 4.75

0.75 x 4 hours = 3 
5.50 - 3 = 2.5 fixed charge.

total parking charge:  y = 2.50 + 0.75x
5 0
3 years ago
Read 2 more answers
Question 7 of 10<br> What is the length of BC in the right triangle below?
horsena [70]

Answer:

A

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

BC² = 9² + 12² = 81 + 144 = 225 ( take the square root of both sides )

BC = \sqrt{225} = 15 → A

7 0
3 years ago
Read 2 more answers
HELP ME DO THIS PLZ
cestrela7 [59]

Answer:

It landed at a height of 14 feet

Step-by-step explanation:

Given

y = -\frac{1}{8}x^2 +4x --- Path of a t-shirt

3y = 2x - 14 --- height of bleachers

Required

Height when t-shirts land in bleachers

3y = 2x - 14

Make y the subject

y = \frac{2}{3}x - \frac{14}{3}

Substitute y = \frac{2}{3}x - \frac{14}{3} in  y = -\frac{1}{8}x^2 +4x

\frac{2}{3}x - \frac{14}{3} =  -\frac{1}{8}x^2 +4x

Multiply through by 24

16x- 112 = -3x^2 +96x

Express as:

3x^2 + 16x  -96x- 112 = 0

3x^2 -80x- 112 = 0

Using a calculator:

x = 28 or x = -\frac{4}{3}

x can not be negative:

So:

x = 28

Substitute x = 28 in y = -\frac{1}{8}x^2 +4x to calculate the height it landed

y = -\frac{1}{8} * 28^2 + 4 * 28

y = 14

3 0
3 years ago
Given the triangle below, what is m angle A, rounded to nearest tenth.
snow_lady [41]

Answer:

D.82.8°

Step-by-step explanation:

Hope it helps

Have a great day

3 0
3 years ago
". How many half times do they have in football?<br> A.1 B.3 C.None ?
NARA [144]

Answer:

A. 1

Step-by-step explanation:

In each football game there is only 1 halftime

5 0
3 years ago
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