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3 years ago

Please help !!!! I’m confused

Mathematics

2 answers:

timama [110]3 years ago

5 0

Answer:

your answer is c

Step-by-step explanation:

i took the test so it's 101,250

Remember to show your work to understand it well!!

Zinaida [17]3 years ago

4 0

Answer:

101,250

Step-by-step explanation:

100,000 * (1 + 5%/(12/3)) = 100,000 * (1.0125) = 101,250

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Sphere with a radius of a radius of 42 inches

prisoha [69]

Answer:

310339.1 in^3

Step-by-step explanation:

Volume=4/3*pi*r^3

Volume=4/3*pi*42^3

Volume=4/3*pi*74088

Volume=98784*pi

Volume=310339.0887

So the volume is about 310339.1 in^3

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3 years ago

Rewrite this non statistical question as a statistical question how many brothers does paul have?

Alecsey [184]

How many brothers does everyone here have?

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3 years ago

The number of square feet per house is normally distributed with a population standard deviation of 154 square feet and an unkno

11111nata11111 [884]

Answer: (1500.66,1599.34)

Step-by-step explanation:

Confidence interval for population mean:

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}$

,where $\overline{x}$ = Sample mean , n= Sample size, z* = critical two tailed z-value , $\sigma$ = population standard deviation.

As per given , we have

n= 16

$\sigma = 154$ square feet

$\overline{x}= 1550$ square feet

$\alpha= 1-0.80 = 0.20$

Critical z-value = $z_{\alpha/2}=z_{0.2/2}=z_{0.1}=1.2815$

Confidence interval for population mean:

$1550\pm (1.2815)\dfrac{154}{\sqrt{16}}\\\\ = 1550\pm (1.2815)\dfrac{154}{4}\\\\= 1550\pm 49.33775\\\\ =(1550-49.33775,\ 1550+49.33775)\\\\\approx (1500.66,\ 1599.34)$

Required confidence interval: (1500.66,1599.34)

6 0

3 years ago

Subtract -7x^2+4x+2−7x 2+4x+2 from x^2-3x 2 −3.

expeople1 [14]

Answer:

The answer is 4

Step-by-step explanation:

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3 years ago

Can you help me with this problem please?????

Pepsi [2]

Answer:

The answer is the first option I hope it helps

5 0

3 years ago

Read 2 more answers