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4 years ago

Solve.

Mathematics

1 answer:

OlgaM077 [116]4 years ago

4 0

It would be answer B :)

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Which expression is equivalent to 60x^20y^24/30x^10y^12 ?

olganol [36]

Answer:

2x^(10)y^(12)

Hope This Helps! Have A Nice Day!!

8 0

4 years ago

Read 2 more answers

I need help plz find m M

Firlakuza [10]

Answer:

60°

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3 years ago

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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3 years ago

A squirrel burrowed 6 holes in 2 minutes. How many holes could the squirrel burrow in 7 minutes

irina [24]

Answer:

He burrows 6 holes in 2 minutes which means that he can burrow 3 holes in 1 minute.

To determine how many he can burrow in 7 minutes, you would multiply the

unit rate of 3 holes in 1 minute by 7.

He would burrow 21 holes in 7 minutes.

Step-by-step explanation:

brainliest pls?

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3 years ago

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Do you guys know how to solve this? Help me out please<br> #9 and 10

Dennis_Churaev [7]

Answer:

X = 3

OG 22

GW 11

OW 11

Q10

X = 13/2

CF 18

CK 36

KF 18

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3 years ago