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2 years ago

Please help me, I need this ASAP so please help me.

Mathematics

1 answer:

Sav [38]2 years ago

4 0

Answer:

2.8 divided by 0.35 = 8 (years)

Step-by-step explanation:

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The formula for the volume of a rectangular prism is V = lwh. Which is the equivalent equation solved for h?

wel

Answer:

V /(lw) = h

Step-by-step explanation:

V = lwh

Divide each side by lw

V/ ( lw) = lwh/(lw)

V /(lw) = h

4 0

2 years ago

What is the answer for this question <br> 20 x 70

Mice21 [21]

Answer:

1400

Step-by-step explanation:

Because

7 x 2 = 14

Then add on the two zeroes at the end

1400

6 0

2 years ago

Is –2 − –39 positive or negative?

pochemuha

Answer:

Positive 37

Step-by-step explanation:

6 0

2 years ago

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The water diet requires you to drink two cups of water every half hour from the time you get up until you go to bed, but otherwi

Elan Coil [88]

Answer:

$7-3.182 \frac{13.638}{\sqrt{4}}= -14.698$

$7+3.182 \frac{13.638}{\sqrt{4}}= 28.698$

Step-by-step explanation:

For this case we have the following info given:

Weight before diet 180 125 240 150

Weight after diet 170 130 215 152

We define the random variable $D = before-after$ and we can calculate the inidividual values:

D: 10, -5, 25, -2

And we can calculate the mean with this formula:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

And the deviation with:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i- \bar X)^2}{n-1}}$

And after replace we got:

$\bar D= 7, s_d = 13.638$

And the confidence interval for this case would be given by:

$\bar D \pm t_{\alpha/2} \frac{s_d}{\sqrt{n}}$

The degrees of freedom are given by:

$df = n-1= 4-1=3$

For the 95% of confidence the value for the significance is $\alpha=0.05$ and the critical value would be $t_{\alpha/2}= 3.182$ . And replacing we got:

$7-3.182 \frac{13.638}{\sqrt{4}}= -14.698$

$7+3.182 \frac{13.638}{\sqrt{4}}= 28.698$

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2 years ago

What is 486 divided by 6?

velikii [3]

486 divided by 6 is 81

5 0

2 years ago

Read 2 more answers