All categories

2 years ago

PLEASE HELP!! DUE SOON!!!

Mathematics

1 answer:

givi [52]2 years ago

7 0

Answer:

Step-by-step explanation:

This is because the formula is 4×pi×r^2

So 4×pi×7^2

(7^2=49) now plug that in: 4×pi×49

Combine like terms: 4×49=196

Plug that into the equation: 196pi

You might be interested in

Help plz. No links. What is 8.21 times 4.2? Show your work.

worty [1.4K]

Answer:

34.482 is the answer to your question

7 0

2 years ago

Read 2 more answers

PLEASE HELP IM STUCK ON THIS

Stella [2.4K]

Answer:

Step-by-step explanation:

5 0

2 years ago

What value of X makes the equation true? 12x-15=16-3x

gogolik [260]

X= 2 1/15 or 31/15.

4 0

3 years ago

Find the area of the following figure. Show your work.

Deffense [45]

Answer:

I think the answer is 46 because 9 + 23 + 7 + 7 = 46.

Step-by-step explanation:

HOPE THIS HELPS YOU!!!!!!! :) :) :) :) :)

SORRY IF IT'S WRONG. :) :) :) :) :)

8 0

2 years ago

Read 2 more answers

The following are questions from a self-quiz.According to some study, the height for Northern European adult males is normally d

lara [203]

Answer:

a) 0.064

b) 0.109

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 181 centimeter

Standard Deviation, σ = 7.3 centimeter

We are given that the distribution of height for Northern European adult males is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(person is between 160 and 170 centimeters)

$P(160 \leq x \leq 170) = P(\displaystyle\frac{160 - 181}{7.3} \leq z \leq \displaystyle\frac{170-181}{7.3}) = P(-2.8767 \leq z \leq -1.506)\\\\= P(z \leq -1.506) - P(z < -2.8767)\\= 0.066 -0.002 = 0.064 = 6.4\%$

b) P(person is higher than 190 centimeter)

P(x > 190)

$P( x > 190) = P( z > \displaystyle\frac{190 - 181}{7.3}) = P(z > 1.2328)$

$= 1 - P(z \leq 1.2328)$

Calculation the value from standard normal z table, we have,

$P(x > 190) = 1 - 0.891 = 0.109 = 10.9\%$

7 0

2 years ago