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2 years ago

15

A student solved this problem and said the answer was 78.

2 answers:

katovenus [111]2 years ago

8 0

It's B.) The student’s answer is not reasonable. Estimation: 170 + 90 = 260

mestny [16]2 years ago

8 0

The answer is B because if you round to the nearest 10, B would be the answer. C is not correct because 93 rounded to the nearest 5 (like 175) is not 100. A is not correct because the estimation is not reasonable. D is also not correct because you would need to add the numbers, not subtract.

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If f'(x) = 3(x+5) +-, what is ffa + 2)?

lubasha [3.4K]

Answer:

-13/3

Step-by-step explanation:

Let f(x)=A

x=f'(A)

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A=(x-15)/3

f(x)=(x-15)/3

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3 years ago

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svetlana [45]

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2 years ago

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Consider the two triangles. Triangles A B C and H G I are shown. Angles A C B and H I G are right angles. The length of side A C

zheka24 [161]

Answer:

Both are similar by SAS similarity.

This SAS similarity is equivalent to the congruence.

Step-by-step explanation:

Step 1:

To prove that ACB and HIG as similar triangles.

We have to look upon the corresponding sides.

SAS= Side angle sides , there the angle must be in between two sides.

$\angle$ ACB = $\angle$ HIG

Lets work on the corresponding sides.

IG/AC = IH/AC

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Reducing each to lowest form, we divide numerator and denominator by 3 for the 1st fraction and by 4 for the 2nd fraction.

We have

$\frac{3}{5}$ = $\frac{3}{5}$

Both sides are equal.

So its proved that both are similar with SAS similarity theorem.

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2 years ago

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