3 years ago

What's the radius of a circle with an area of 64 square feet?

Mathematics

2 answers:

Tpy6a [65]3 years ago

8 0

The answer is 4.51.............

jeka943 years ago

7 0

The answer is A. 4.51 ft.

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Simplify 18 - 2[X + (x - 5)].<br> 8- 4x<br> 28 - 4x<br> 28 - 2x

malfutka [58]

Answer:

28 - 4x

Step-by-step explanation:

$18 -2 [x + (x - 5)] \\ = 18 - 2 [x + x - 5] \\ = 18 - 2 [2x - 5] \\ = 18 -4x + 10 \\ = 28 - 4x \\$

5 0

4 years ago

How do u rename on the hour? What does on the hour mean?? Plz help guys I really would appreciate it I will give u 43 points if

Alecsey [184]

For example, if someone says "5, on the hour", it means at 5:00

6 0

3 years ago

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Simplify negative 4 and 1 over 4 − negative 9 and 1 over 2 . (5 points)

Daniel [21]

Answer:

5¼

Step-by-step explanation:

-4¼ – -9½

-4¼ + 9½

9½ – 4¼

5¼

I hope this helps

7 0

3 years ago

7x+39>=53. And. 16x+ 15>31 X>=2 x>1. X<=2. No solution

bazaltina [42]

Answer:

7x+39>=53 and 16x+ 15>31 x>=2 (no solutions exist)

Step-by-step explanation:

4 0

3 years ago

A company finds it can produce 15 heaters for $ 4050â€‹, while producing 25 heaters costs $ 6550. Express theâ€‹ cost, y, as a l

amid [387]

Answer:

y=250x+300

Step-by-step explanation:

Let x be the number of heaters and y be the total cost.

We need to find the linear function for y in terms of x.

It is given that company can produce 15 heaters for $4050 and 25 heaters costs $ 6550.

It means the line passes through the points (15,4050) and (25,6550).

If a line passes through two points $(x_1,y_1)$ and $(x_2,y_2)$ , then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

The equation of line is

$y-4050=\frac{6550-4050}{25-15}(x-15)$

$y-4050=\frac{2500}{10}(x-15)$

$y-4050=250(x-15)$

$y-4050=250x-3750$

Add 4050 on both sides.

$y-4050+4050=250x-3750+4050$

$y=250x+300$

Therefore, the required linear function is y=250x+300.

8 0

3 years ago