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Softa [21]
2 years ago
5

( -8z)² find the answer

Mathematics
1 answer:
olasank [31]2 years ago
4 0
The answer is (-8z)^2= 16z^2
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In the number 7.46 the _ in the ones place is 7. The 4 in the _ place is 0.4. The _ in the hundredths place is blank.
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In the number 7.46, the number in the ones place is 7. The 4 in the tenths place is 0.4. The number in the hundredths place is 0.06.
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The weight of an object on a particular scale is 175.2 lbs. The measured weight may vary from the actual weight by at most 0.1 l
snow_lady [41]
Either 175.25 ( 175.2 + 0.1/2) or 175.15 ( 175.2 - 0.1/2) ----------> Range. 175.15 < weight < 175.25
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Pleasee Help!11! Pts 13
klemol [59]

Answer:

They are all 23 because all the sides are equal.

Step-by-step explanation:

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2 years ago
Brainest for best answer only 5 mins left show your work
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Answer:

Step-by-step explanation:

Problem One

Perimeter is in meters not square meters. The equation is

2*(6.8+x) + 2*12.5= 47                Remove the brackets. Combine like terms  

13.6 + 2x + 25 = 47

38.6 + 2x = 47                            Subtract 38.5 from both sides

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x = 4.2

Answer D

Problem 2

This problem is asking that you calculate the perimeter of a swimming pool.

The two semicircles on the ends make a whole circle.

The diameter of the semicircles is obtained from the difference of the two given lengths.

The rectangle has a length of 12. The length of the rectangle and the 2 semicircles is 16. The difference is 4. You could divide this by 2 to get the radius. I would just leave it as the diameter.

So the perimeter is pi*d + 2 * 12 [there are 2 lengths]

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Perimeter = 36.56

Answer A

Problem 3

This is the circle inside the square.

The radius of the circle = 9

The diameter of the circle and the length of square's side = 2*9 = 18

The area of the square = s^2  where s = 18

The area of the square = 18^2 = 324

The area of the circle = pi * 9^2 = 3.24 * 81 = 251.34

The area of the Shaded area = 324 - 251.34 = 69.66

Answer C

Problem 4

b1 = 5

b2 = 11.5

h = 4.5

Formula

Area = (b1 + b2 ) * 4.5/2

Area =  (5 + 11.5) * 4.5 /2

Area = 16.5 * 4.5 / 2

Area = 74.25/2

Area = 37.125

Answer D

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3 years ago
Evaluate x 3 for x = 2.
solong [7]
If you mean 3x then that would be 6

hope this helps you
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