3 years ago

Your answer is incorrect.

Mathematics

1 answer:

Nikolay [14]3 years ago

8 0

Answer:

Using the formula of 4/3pir^3, the answer is

Step-by-step explanation:

1) Divide the diameter by 2

2) Plug into your formula

3) cube root it

4) multiple 4

5) Divide the answer by 3

6) use a calculator to multiple the answer with pi

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Consider the differential equation 4y'' â 4y' + y = 0; ex/2, xex/2. Verify that the functions ex/2 and xex/2 form a fundamental

Kazeer [188]

Check the Wronskian determinant:

$W(e^{x/2},xe^{x/2})=\begin{vmatrix}e^{x/2}&xe^{x/2}\\\frac12e^{x/2}&\left(1+\frac x2\right)e^{x/2}\end{vmatrix}=\left(1+\frac x2\right)e^x-\frac x2e^x=e^x\neq0$

The determinant is not zero, so the solutions are indeed linearly independent.

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3 years ago

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3 years ago

2. Lisa is 1.50m tall. Sean is 35cm shorter. How tall is Sean in metres?

Olegator [25]

Answer:

Sean is 1.15m

Step-by-step explanation:

35cm = 0.35m

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2 years ago

A new vaccine claims to reduce the risk of contracting chickenpox from 80% to 20%. Which of the following statements is true reg

dlinn [17]

Answer:

The vaccine decreases the risk of contracting chickenpox by 75 percentage

Step-by-step explanation:

Risk of contracting chickenpox is reduced from 80% to 20%.

This reduction in percentage is:

(80 - 20)/80*100% = 75%

Correct choice is:

The vaccine decreases the risk of contracting chickenpox by 75 percentage

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3 years ago

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Annette [7]

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