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JulijaS [17]
3 years ago
9

Evaluate the expression when a= 2 and c= -7. C-4a answer​

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0
<h2><u>Solution</u><u>:</u><u>-</u></h2>

we know that the value of a is 2 and c is -7

Expression-

c-4a

= (-7)-4×2

= (-7)-8

= -15

<h3>~</h3>
natta225 [31]3 years ago
3 0

Answer:

-15

Step-by-step explanation:

Let a = 2 and c = -7.

c-4a\\(-7)-4(2)\\-7-8\\-15

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3 years ago
The length of a solar car race track is supposed to be 4.8 meters.
snow_tiger [21]

Answer:

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Step-by-step explanation:

A percentage change is computed using ...

  percent change = ((new amount) -(original amount))/(original amount) × 100%

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4 years ago
The altitude of a triangle forms a perpendicular line.<br><br> False<br><br> True
Ksivusya [100]
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4 0
3 years ago
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photoshop1234 [79]
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6 0
4 years ago
A cyclist estimates that he will bike 80 miles this week. He actually bikes 75.5 miles. What is the percent error of the cyclist
maw [93]

Answer:

<em>The percent error of the cyclist's estimate is 5.63%</em>

Step-by-step explanation:

<u>Percentages</u>

The cyclist estimates he will bike 80 miles this week, but he really bikes 75.5 miles.

The error of his estimate in miles can be calculated as the difference between his estimate and the real outcome:

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To calculate the error as a percent, we divide that quantity by the original estimate and multiply by 100%:

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Rounding to the nearest hundredth:

The percent error of the cyclist's estimate is 5.63%

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3 years ago
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