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slega [8]
3 years ago
6

Part A: Find a rational number that is between 9.5 and 9.7. Explain why it is rational. (2 points)

Mathematics
1 answer:
vladimir2022 [97]3 years ago
3 0

Answer:

  A. 9.6

  B. √92

Step-by-step explanation:

<h3>A.</h3>

Rational: 9.6. It is rational because it is a terminating decimal number.

__

<h3>B.</h3>

Irrational: √92 ≈ 9.59166.... It is irrational because it is the square root of an integer that is not a perfect square. All such square roots are irrational.

_____

<em>Additional comment</em>

In general, the n-th root of an integer that is not a perfect n-th power will be irrational. For example, ∛885 ≈ 9.600954766... is irrational, because 885 is not a perfect cube. (9³=729, 10³=1000)

Trig functions of (non-zero) rational angles in radians will be irrational. For example, tan(1.467) ≈ 9.5996286... is irrational.

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On Friday, the temperature was 82°F. The temperature changed by -2°F on Saturday, and then it changed by 2°F on Sunday.
Deffense [45]

Anwser:

I think it is 82 because it goes down 2 than sunday it goes up 2 to put it back at 82.

6 0
4 years ago
What is -2k=8k+7k? How do I solve that?
Keith_Richards [23]

Answer:

k = 0

Step-by-step explanation:

-2k = 8k + 7k

Add similar elements:

-2k = 15k

Subtract 15k from both sides:

-2k - 15k = 15k - 15k

Simplify:

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Divide both sides by -17:

17k/-17 = 0/-17

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4 0
3 years ago
A) Given that 4^-6×4^x=1, find the value of x.
Verizon [17]

Answer:

A: x = 6

i could only figure out a sorry

Step-by-step explanation:

5 0
3 years ago
Which strategy best explains how to solve this problem? Rebecca bought a meal and two snacks for lunch each day. The meal cost $
Fittoniya [83]
Given:
Cost of lunch per day = 1 meal and 2 snacks

C = 5.5 + 2(0.75) = 5.5 + 1.5 = 7

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Based on the choices, the best strategy would be:

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6 0
3 years ago
Erika has three pieces of ribbon. Each peice is 25 yards long.she needs to cut pieces that are 22inches long. What is the greate
sveticcg [70]
1 yard=36".
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= 2700/22 = 122 pieces (2684") with 16" left over.

3 0
3 years ago
Read 2 more answers
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