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Zina [86]
3 years ago
9

Is 2(3a-2)+4a equivalent to 10a-2

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
5 0
No it’s equal to 10a-4
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Write the exact value of the side length of each square. If the value is not a whole number, estimate the length.
Savatey [412]

Given:

The area of the squares are given.

To find:

The exact side length or estimate side length of the square.

Solution:

We know that, the area of a square is

A=a^2

Where, a is the side length of the square.

a=\sqrt{A}

Area of the square is 100 square units. So, the side length is:

a=\sqrt{100}

a=10

Therefore, the side length is 10 units.

Area of the square is 95 square units. So, the side length is:

a=\sqrt{95}

It is not exact. We know that \sqrt{81}.

Therefore, the side length is between 9 and 10.

Area of the square is 36 square units. So, the side length is:

a=\sqrt{36}

a=6

Therefore, the side length is 6 units.

Area of the square is 30 square units. So, the side length is:

a=\sqrt{30}

It is not exact. We know that \sqrt{25}.

Therefore, the side length is between 5 and 6.

8 0
3 years ago
Jan rode to her friend's house with a constant speed of 14 m/hr. How long will she take to
sammy [17]

Answer:

1.07 hours

Step-by-step explanation:

14 miles = 1 hour

15 miles = x hours

Equal these two together

14 mi/1hr = 15 mi/xhr

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14 mi × x hr = 1 hr × 15 mi

I will stop using the units for now so it won't be as confusing

14x = 15

Divide both sides by 14 to isolate the variable

14x ÷ 14 = 15 ÷ 14

x = 1.07... hours

4 0
3 years ago
55 km per hour how many miles is per hour
madam [21]
34.1754 is the answer because if 50 km an hour is 31.0685 just add the other km's
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The doorstop is a triangular prism. volume of the triangular prism is the area of the base times the height
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Giving brainlyest if your answer is right
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Answer:

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3 years ago
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