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Marizza181 [45]
3 years ago
14

Find f(-2) if f(x) = 2x + 1.​

Mathematics
1 answer:
mash [69]3 years ago
7 0

Answer:

-3

Step-by-step explanation:

f(x)=2x+1

f(-2)=2(-2)+1=-4+1=-3

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55% of what number is 70? Round to the nearest tenth.
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55% of x is 70
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127.3
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Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar. If the triangles are similar, write a valid sing
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Solve the following inequality 5x+12+3x<36
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Answer:

x<3

Step-by-step explanation:

5x+12+3x<36

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A park is 4 times as it is wide. If the distance around the park is 12.5 kilometers what is the area of the park
MaRussiya [10]

Answer:

6.25 km

Step-by-step explanation:

Here is the correct question: A park is 4 times as long as it is wide. If the distance around the park is 12.5 kilometers, what is the area of the park?

Given: Perimeter (Distance) of the park= 12.5 km

Considering park is in rectangular shape.  

Let the width of park be x

∴ as given length will be 4x.

Formula for perimeter of rectangle =2\times (length + width)

Perimeter is given 12.5 km

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⇒ 12.5= 10x

∴ x= 1.25 km, which means width is 1.25 km and length is 5 km.

Now, finding the area of park

Formula; Area of rectangle= length\times width

∴ Area of rectangle= 5\times 1.25 = 6.25 km

∴Area of park will be 6.25 km.

6 0
3 years ago
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