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Katarina [22]
3 years ago
12

I need help with this question please

Mathematics
2 answers:
umka21 [38]3 years ago
7 0

Answer:

C. 9

Step-by-step explanation:

area \: of \: square =  {side}^{2} \\  \therefore \:   {side}^{2}  = 81 \\\therefore \:  side =  \sqrt{81}  \\ \therefore \:  side = 9 \: feet

Hence, side length of square = 9 feet.

Natasha_Volkova [10]3 years ago
3 0

Answer:

9 ft

Step-by-step explanation:

Area = 81 ft²

Area of square = length x length

A square has all its sides equal

Therefore

Area = L²

L² = 81 ft²

Find square root of both sides

sq rt L² = sq rt  81 ft²

L = 9 ft

Therefore length of the square = 9 ft

I hope this was helpful, please rate as brainliest

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its non propotional that the answer

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point P is located at (-2, 7), and point R is located at (1, 0). find the y value for the point Q that is located 2/3 the distan
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Answer: 7/3


Step-by-step explanation:

R-P= (3,-7). the displacement vector.

P+x(R-P) moves to x times distance between

P+(R-P) = R moves to 100% of the distance.

Q = P+2/3(R-P)

= (-2,7)+2/3(3,-7)

= (-2,7)+(2,-14/3)

= (0,7-14/3)

= (0,7/3)

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19) Write the equation of the line with<br> passing through (-4, 3) and ( 1, 13)
lubasha [3.4K]

Answer:

Step-by-step explanation:

(13 - 3)/(1 + 4) = 10/5= 2

y - 13 = 2(x - 1)

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3 0
3 years ago
The average birth weight of elephants is 230 pounds. Assume that the distribution of birth weights is Normal with a standard dev
zubka84 [21]

Answer:

294.1 pounds

Step-by-step explanation:

Step 1

We find the z score for 90th percentile

= 1.282

Step 2

We solve using z score formula

z = (x-μ)/σ, where

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μ is the population mean = 230 pounds

σ is the population standard deviation= 50 pounds

1.282 = x - 230/50

Cross Multiply

1.282 × 50 = x - 230

64.1 = x - 230

x = 230 + 64.1

x = 294.1 pounds

The birth weight of elephants at the 90th percentile is 294.1 pounds.

4 0
3 years ago
The Hurry-Mart convenient store is re-stocking their shelves. They always stock the m&amp;m to Hershey bars at a ratio of 10 to
castortr0y [4]

Answer:

12 Hershey bars

Step-by-step explanation:

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8 0
3 years ago
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