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vampirchik [111]
2 years ago
15

Please help, I’ll mark your answer as brainliest.

Mathematics
1 answer:
Sophie [7]2 years ago
7 0

Answer:

I dont know mommy

Step-by-step explanation:

Keep safe

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What expression is equivalent to 5(a + a + a )
Alecsey [184]

Answer:

15a

Step-by-step explanation:

Because   5(a + a + a)  =  5 * (3a) = 15a

5 0
3 years ago
Read 2 more answers
What would be a reasonable estimate for the value of m in 31+m=307
il63 [147K]

31 rounds to 30

307 rounds to 310

30+m≈310

m≈310-30

m≈280

6 0
3 years ago
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Complete the following equation using <, >, or = 120% ___ 1
kvasek [131]
To solve these types of problems, we need to convert the two values into the same form.  

We know that 1 = 1.00, as adding zeroes to the end of a decimal doesn't change the value.

To change a decimal into a percentage, we multiply the decimal by 100 and add a percent sign.  

1.00 * 100 = 100%

Therefore, 1 = 100%

Because 120% is greater than 100%, thus, 

120% > 1
3 0
2 years ago
A-(<br> b.(h)126= (4x 1)(x 1)
Vladimir79 [104]
The correct answer is 400.
8 0
2 years ago
Find the area of the shaded portion of the figure. Each vertex of square ABCD is at the center of a circle. Round your answer to
IrinaK [193]

<u>Given:</u>

Each circle has a diameter of 2 inches each.

The outer square has a side length of 4 inches and the square ABCD has a side length of 2 inches.

<u>To find:</u>

The area of the shaded region.

<u>Solution:</u>

Each circle has a diameter of 2 inches. The square ABCD is at the center of each circle so it has a side length of 1 inch.

To determine the area of the shaded region, we subtract the area of the quarter-circles in the square ABCD from the area of the square ABCD.

The area of a quarter-circle =\frac{\pi r^{2} }{4} .

All the quarter-circles have a radius of 1 inch.

The area of 1 quarter-circle =\frac{\pi r^{2} }{4} = \frac{\pi (1^{2}) }{4} = \frac{3.1415}{4} .

The area of 4 quarter-circles =4(\frac{3.1415}{4}) = 3.1415.

So the area of the quarter-circles in the square ABCD is 3.1514 square inches.

The area of a square = a^{2} .

The area of square ABCD =2^{2} =4.

The area of the shaded region =4-3.1415=0.8585.

The area of the shaded region is 0.8585 square inches.

3 0
3 years ago
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