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3 years ago

Jake is building a circular sandbox for his son. How many plastic blocks will he need to make one layer around the sandbox?

Mathematics

2 answers:

irakobra [83]3 years ago

8 0

Answer:

Step-by-step explanation:

densk [106]3 years ago

4 0

Answer:

6.28(r)

r = #blocks

Step-by-step explanation:

circumference = 2pi(r)

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faith has posted 150 pictures on Instagram and continues to post 14 pictures each day. Katrina just made Instagram account and i

gregori [183]

On day 12 they will both have the same amount of posts on Instagram.

4 0

4 years ago

Read 2 more answers

There were two trees growing seeds in a backyard. One tree grew at a rate of 1/2 a foot every 2 years. The other grew 4 inches e

denis-greek [22]

Answer:

20 in

Step-by-step explanation:

Tree 1:

Rate of growth = (½ ft/2 yr)

12 yr growth = 12 × (½/2)

= 6/2

= 3 ft

= 36 in

Tree 2:

Rate of growth = (4 in/3yr)

12 yr growth = 12 × (4/3)

= 48/3

= 16 in

Difference:

Tree 1 - Tree 2 = 36 - 16

= 20 in

The trees will differ in height by 20 in.

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4 years ago

In AABC, side AB is 8 units long and side BC is 25 units

Drupady [299]

Answer: the answer is D

Step-by-step explanation:

6 0

4 years ago

Assume that the Poisson distribution applies to the number of births at a particular hospital during a randomly selected day. As

kakasveta [241]

Answer:

0.9999985 = 99.99985% probability that in a day, there will be at least 1 birth.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

Assume that the mean number of births per day at this hospital is 13.4224.

This means that $\mu = 13.4224$

Find the probability that in a day, there will be at least 1 birth.

This is:

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-13.4224}*13.4224^{0}}{(0)!} = 0.0000015$

Then

$P(X \geq 1) = 1 - P(X = 0) = 1 - 0.0000015 = 0.9999985
$

0.9999985 = 99.99985% probability that in a day, there will be at least 1 birth.

7 0

3 years ago

Find the volume of a hexagonal pyramid with a base area of 147 square meters and a height of 4 meters.(1 point) 294 cubic meters

irina1246 [14]

Answer:

Volume of a hexagonal pyramid = 588 square meter

Step-by-step explanation:

Given:

Base area of hexagonal pyramid = 147 square meter

Height of hexagonal pyramid = 4 meter

Find:

Volume of a hexagonal pyramid

Computation:

Volume of a hexagonal pyramid = Base area of hexagonal pyramid x Height of hexagonal pyramid

Volume of a hexagonal pyramid = 147 x 4

Volume of a hexagonal pyramid = 588 square meter

7 0

3 years ago