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ludmilkaskok [199]
3 years ago
5

What is the solution to the equation 5 x + 2 x = 24 − 4 ( x − 5 ) ?

Mathematics
1 answer:
BaLLatris [955]3 years ago
5 0
5x + 2x = 24 − 4 (x−5)

5x + 2x = 24 + (−4)(x)+(−4)(−5)

5x + 2x = 24 + −4x +20

(5x +2x) =(−4x) +(24 +20)

7x= −4x + 44
+ 4x + 4x

11x/11 = 44/11

Answer : x = 4
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Answer:

f(-3) = 16

Step-by-step explanation:

You substitute -3 to x.

f(-3) = 2(-3)² - 5(-3) - 17

f(-3) = 16.

As for the coordinates, the coordinates plotted in the graph above are (1,-1) and (2,-2).

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A dog breeder would like to know how many Dalmatian puppies are typically born in a litter. He conducts some research and select
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Answer:

c. 6.2 ± 2.626(0.21)

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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99% confidence interval

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The confidence interval is:

\overline{x} \pm M

In which \overline{x} is the sample mean while M is the margin of error.

The distribution of the number of puppies born per litter was skewed left with a mean of 6.2 puppies born per litter.

This means that \overline{x} = 6.2

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