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son4ous [18]
3 years ago
7

Complete the solution of the equation. Find the value of y when x equals 4. -7x + y = -22

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0

-7x + y = -22

-7*4 + y = -22

y = -22 + 28

y = 6

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Please respond to the question below in your own words with proper explanations
ycow [4]

Answer:

t(400)=673.

It means that 673 of 9 inch tiles are required to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.

Step-by-step explanation:

Given:

The function relating number of 9 inch tiles required and area to cover is:

t(A)=\frac{144}{9.25^2}A

Now, plug in 400 for A to evaluate t(400).

t(400)=\frac{144}{9.25^2}\times 400=\frac{144\times 400}{85.5625}=\frac{57600}{85.5625}=673.19\approx6225

Therefore, Don required  673 of 9 inch tiles to cover an area of 400 square feet, when spacing the tiles a quarter inch apart.

4 0
3 years ago
14x² - 21x³ + 49x⁴<br><br>ayudenme porfavor​
Ad libitum [116K]

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7 0
2 years ago
A fair coin is flipped four times. What is the probability of getting heads at least once?
Llana [10]
The probability is 15.63%. Solution:
 (1 + 4)! over (1! + 4! + 2 raise to 5)
=5/32
=.1563
=15.63%
6 0
3 years ago
Can you make a triangle with side lengths of 2 inches and 2 inches and 4 inches?
Grace [21]

Answer: No you can not make any triangles with 2 inches, 2 inches and 4 inches. hoped this helped!

Step-by-step explanation:

4 0
3 years ago
Jia is tiling a floor. The floor is a square with side
NNADVOKAT [17]

Answer:

36 tiles

Step-by-step explanation:

First, find area of the square floor knowing the formula as;

Area= s^{2}

where s= side of a square.

If one side of the floor is 12 feet, then Area= 12^{2} = 144ft^{2}

Next, find the area of each tile using the same formula and given s=2 feet;

Area(tile) = 2^{2} = 4ft^{2}

To find the number of tiles needed to cover entire floor, divide area of the floor by area of one tile; 144 / 4 = 36 tiles

5 0
3 years ago
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