Giving 25 points for this! help ASAP please.

A cylinder contain 150.8 cubic units of water. What is the minimum radius of a sphere that will hold the water? Round to nearest

Oksi-84 [34.3K]

70 because you would divide 150.8 by 2 and it gives you 75.4 but you have to round it and do v=4/3×3.14×70^3

6 0

3 years ago

Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test t

bixtya [17]

Answer:

For this case we can find the critical value with the significance level $\alpha=0.05$ and if we find in the right tail of the z distribution we got:

$z_{\alpha}= 1.64$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.344 -0.27}{\sqrt{\frac{0.27(1-0.27)}{125}}}=1.86$

Since the calculated value is higher than the critical value we have enough evidence to reject the null hypothesis and we can conclude that the true proportion of households with one person is significantly higher than 0.27

Step-by-step explanation:

We have the following dataset given:

$X= 43$ represent the households consisted of one person

$n= 125$ represent the sample size

$\hat p= \frac{43}{125}= 0.344$ estimated proportion of households consisted of one person

We want to test the following hypothesis:

Null hypothesis: $p \leq 0.27$

Alternative hypothesis: $p>0.27$

And for this case we can find the critical value with the significance level $\alpha=0.05$ and if we find in the right tail of the z distribution we got:

$z_{\alpha}= 1.64$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing we got:

$z=\frac{0.344 -0.27}{\sqrt{\frac{0.27(1-0.27)}{125}}}=1.86$

Since the calculated value is higher than the critical value we have enough evidence to reject the null hypothesis and we can conclude that the true proportion of households with one person is significantly higher than 0.27

5 0

3 years ago

I need help with these three equations <br> 3x - 2 = x + 10<br> X+4=19-2x<br> 8z - 20 =z +15

lapo4ka [179]

Answer:

1st answer is 6, 2nd is 5, 3rd is 5

Step-by-step explanation:

3x-2=x+10

3x-x=10+2

2x=12

x=12÷2

x=6

x+4=19-2x

x+2x=19-4

3x=15

x=15÷3

x=5

8z-20=z+15

8z-z=15+20

7z=35

z=35÷7

z=5

plzz mark me as brainliest

4 0

3 years ago

Read 2 more answers

Use the conversion formula to write the equation for the new function, F(t).

Alecsey [184]

Answer:

C(t) into F(t)=9/5C(t)+32.

6.5.4 it would be F(t)*C(t)=9/5

Step-by-step explanation:

do the cansil out methed then sove it like u would an problues thet ask to sove for x

4 0

3 years ago

Please help i will give brainliest

siniylev [52]

Answer:

The correct statement is D)

Step-by-step explanation:

To get this equation into slope-intercept form, you need to isolate the variable y on the left. 2y - 3x = -4 ⇒ 2y = 3x - 4 ⇒ y = $\frac{3}{2}$ x - 2. The slope would be $\frac{3}{2}$ which is positive, and the y-intercept is -2, which is negative.

6 0

3 years ago