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neonofarm [45]
3 years ago
11

Find the radius of a circle that has an area of 212​

Mathematics
2 answers:
kobusy [5.1K]3 years ago
5 0

Answer:

The answer should be: r ≈ 8.21

Cloud [144]3 years ago
3 0

Answer:

how to do this morning cause of death in a store is a great way I

Step-by-step explanation:

what's your favorite movie in this series or a

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Architects make scale models of buildings to present their ideas to clients. If an
MaRussiya [10]

The area of the model is 80 square foot

Step-by-step explanation:

Let the area of the house model be 'a'

The scale = 1:50

The area of the house= 4000 square foot

Area of the model =4000/50

a = 80 square foot

The area of the model is 80 square foot

5 0
3 years ago
PLZ HELP ASAP!
sineoko [7]

Answer:

The ordered pair (1, 2) is a solution to the system of linear equations.

3 0
3 years ago
Assume that the heights of women are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If
vesna_86 [32]

Answer:

<h2>The probability is 58 %.</h2>

Step-by-step explanation:

This problem belong to a normal distribution probability.

Mean = 63.6

Standard Deviation = 2.5.

We have to find the probability of a height greater than 63.0.

Due to the normal probability, we need to find the Z score first:

Z=\frac{x-u}{o}; where x is the height, u is the mean, and o is the standard deviation.

Z=\frac{63-63.6}{2.5} \\Z= -0.24

Once we have our Z score, we find the probability with the z-table (attached). So, for a z score of -0.24 we have a probability of 0.42.

But, the problem is asking for height greater than 63.0, this mean that we have to subtract 0.42 from 1, giving as result 0.58, which means a 58% of probability,

6 0
3 years ago
Easy vector problem! show work/explain please :)
krek1111 [17]

Answer:

Step-by-step explanation:

a = 2i + 3j + zk

b = xi + 1j + 4k

Given a X b = 6i -14j +5k

a X  b  = | i   j   k|

              |2  3   z|

              |x   1    4|

a X b = i(12-z) - j(8 - xz) + k(2-3x) = 6i -14j +5k

equate the coefficients of i , j and k

12- z = 6;  implies z = 6

8 - xz = -14 implies 8 - 6x = -14

2-3x = 5     implies 2 - 3x = 5 implies  x = -1

8 0
3 years ago
An investmeant of $200 increases at a rate of 9.5% per year. what is the growth factor, b?
BlackZzzverrR [31]
9.5 percent but in the equation you would add 1
8 0
3 years ago
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