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nydimaria [60]
3 years ago
5

HELP!! THIS TEST WORTH 36 POINTS!!! WILL MARK BRAINLEIST!!!!

Mathematics
1 answer:
Anestetic [448]3 years ago
5 0

Answer:

A, B, C

Step-by-step explanation:

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3 years ago
Mr. Fowler's science class grew two different varieties of
Zanzabum

Answer: A

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The average height of a variety a is greater but varies less than a variety b

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A shopper buys 3 notebooks for $5 each. The percent sales tax is 8%. How much is the total sale?
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$16.20

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4 years ago
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the expression 15n + 12n + 100 rersents the total cost in dollars for skis, boots and a lesson for n skiers. simplify the expres
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Answer:

$316.

Step-by-step explanation:

The terms that have n can be operated:

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total cost = 27n +100 for n skiers. So, for 8 skiers we have

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The ideal width of a safety belt strap for a certain automobile is 6 cm. The actual width can vary by at most 0.45 cm. Write an
OlgaM077 [116]

Answer:

|x-6|\le 0.45

x\in [5.55,6.45]

Step-by-step explanation:

<u>Absolute Value Inequality</u>

Assume the actual width of a safety belt strap for a certain automobile is x. We know the ideal width of the strap is 6 cm. This means the variation from the ideal width is x-6.

Note if x is less than 6, then the variation is negative. We usually don't care about the sign of the variation, just the number. That is why we need to use the absolute value function.

The variation (unsigned) from the ideal width is:

|x-6|

The question requires that the variation is at most 0.45 cm. That poses the inequality:

|x-6|\le 0.45

That is the range of acceptable widths. Let's now solve the inequality.

To solve an inequality for an absolute value less than a positive number N, we write:

-0.45\le x-6 \le 0.45

This is a double inequality than can be easily solved by adding 6 to all the sides.

-0.45+6\le x \le 0.45+6

Operating:

5.55\le x \le 6.45

That is the solution in inequality form. Expressing in interval form:

\boxed{x\in [5.55,6.45]}

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