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3 years ago

What are the zero/intercepts of the equations (x+7)(x-2)=0

Mathematics

1 answer:

umka21 [38]3 years ago

3 0

Answer:

The answer would be 2.5x+8x6y

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One sample of n = 10 scores has a mean of M = 8, and a second sample of n = 5 scores has a mean of M = 2. If the two samples are

schepotkina [342]

Answer:

The mean for the combined sample = 6.

Step-by-step explanation:

We have been given that one sample of n = 10 scores has a mean of M = 8.

So the sum of 10 scores for 1st sample will be: $10\times 8=80$

We are also told that second sample of n = 5 scores has a mean of M = 2.

So the sum of 5 scores for 2nd sample will be: $5\times 2=10$

When the both samples are combined, so total points will be: $80+10=90$ and total scores will be $10+5=15$ .

$\text {Mean for the combined sample}=\frac{\text{Total points of both data sets}}{\text{Total scores of both data sets}}$

$\text {Mean for the combined sample}=\frac{90}{15}$

$\text {Mean for the combined sample}=6$

Therefore, the mean for the combined sample will be 6.

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3 years ago

At the beach 29% of people have red towels and 18% have white towels if the rest have blue ,what percentage of the people at the

Vikki [24]

The percent of people with blue towels would be the remaining percent when you add the red and wight towels together.
a.k.a
53% would have blue towels.

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4 years ago

Which relationship is a direct variation?

vekshin1

D because each y value is obtained by multiplying x by -2
y = -2x which is direct variation.

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tekilochka [14]

Answer:

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Step-by-step explanation:

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Mars2501 [29]

I think:
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