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3 years ago

Enter an expression that represents the following statement, and then solve the expression.

Mathematics

1 answer:

Vesna [10]3 years ago

6 0

Step-by-step explanation:

7 - (- 63)

So it cannot be subtracted because two negative signs become positive so the answer is

7 + 63

= 70

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HURRY! PAST DUE MATH HOMEWORK!

Anettt [7]

10•4=40. 40 is the perimeter of the square. To find the perimeter of the semicircle use the circle perimeter (circumference) formula and divide that answer by two. This would be pi•10. You get 31.4. Then divide by 2 so it’s 15.7. Finally add 15.7 and 40. Hope this helps... sorry it’s such a long answer

8 0

2 years ago

Read 2 more answers

What is x/5+7=16 gonna be?

Margarita [4]

x=45

Step-by-step explanation:

x/5+7-7=16-7

5/1×x/5=9×5/1

x=45

6 0

3 years ago

What is the estimate quotient of 31.9/4

ivann1987 [24]

8 . You round 31.9 to 32 then divide it by 4 which gives you 8

8 0

3 years ago

The temperature currently −4.574°F. A high-pressure front increases the temperature to 8.7°F. Let x represent the number of degr

GREYUIT [131]

Answer:

Step-by-step explanation:

6 0

2 years ago

What percentage of the semi circle is shaded? <br>

mezya [45]

The percentage of the semicircle shaded section is approximately 23,606 %.

The percentage of the area of the semicircle is equal to the ratio of the semicircle area minus the half-cross area to the semicircle area. In other words, we have the following expression:

$r = \left(\frac{A_{s}-A_{h}}{A_{s}} \right)\times 100\,\%$

$r = \left(1-\frac{A_{h}}{A_{s}} \right)\times 100\,\%$ (1)

Where:

$A_{h}$ - Area of the half cross, in square centimeters.
$A_{s}$ - Area of the semicircle, in square centimeters.
$r$ - Percentage of the shaded section of the semicircle.

And the percentage of the shaded section is:

$r = \left[1-\frac{4 \cdot (2\,cm)^{2}+4\cdot \left(\frac{1}{2} \right)\cdot (2\,cm)^{2}}{0.5\cdot \pi\cdot (16\,cm^{2}+4\,cm^{2})} \right]\times 100$

$r \approx 23.606\,\%$

The percentage of the semicircle shaded section is approximately 23,606 %.

We kindly invite to check this question on percentages: brainly.com/question/15469506

3 0

2 years ago