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Alex787 [66]
3 years ago
5

Evaluate the expression when a=4, b=−5, and c=−8. (−b)+c=

Mathematics
2 answers:
Lelu [443]3 years ago
8 0
The correct answer is -3. The 2 negative signs in the parentheses turns positive and add to -8.
hodyreva [135]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

(−b)+c=

Let b = -5 and c = -8

- (-5) + -8

5 -8

-3

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If 25% of a number is 100, what is the number?
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400

Step-by-step explanation:

25% is a fourth 100 ×4 is 400

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The y-intercept of the line whose equation is 2x + y = 4 is -2 2 4
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The y intercept is the value of y when x=0.  Substituting we get

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The radius of a cylinder is 3 cm and the height is 6 cm.
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Step-by-step explanation:

A=2πrh+2πr2=2·π·3·6+2·π·32≈169.646

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PLZZZ HELP DUE IN 30 MINUTESSS!!!!!
s344n2d4d5 [400]
Look to be honest this is what I got hopefully it is right my bad if they aren’t.
4 0
2 years ago
Phoebe usually drives to work each day on a 12-mile road that is currently closed for construction. While the road is closed she
Mumz [18]

The total distance phoebe has to drive each day (round trip) while her usual route is closed is 42 miles

<h3>What is a Pythagoras theorem?</h3>

The square of the longest side is equal to the square of the sum of the othersides.

Before we can calculate the total distance, we will need to get the hypotenuse on  both sides using the Pythagoras theorem as shown:

H^2= 12^2 + 9^2

H² = 144 + 81

H² = 225

H = 15

For the other hypotenuse

h² = 12² + 5²

h² = 144 + 25

h²  = 169

h = 13 mils

The total distance = 5 + 15 + 9 + 13

The total distance = 42 miles

The total distance phoebe has to drive each day (round trip) while her usual route is closed is 42 miles

Learn more on Pythagoras theorem here: brainly.com/question/12306722

3 0
2 years ago
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