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3 years ago

How would you find a fraction of a circle that an arc covers

Mathematics

2 answers:

DaniilM [7]3 years ago

8 0

Answer: It’s divide the measure of the arc by 360 degrees, if I’m not mistaken!

IrinaK [193]3 years ago

3 0

Answer:

Divide the measure of the arc by 180.

Divide the circumference by 360.

Divide the measure of the arc by 360.

Divide the diameter by 360

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The figure is the net for a rectangular prism.

svetoff [14.1K]

$sa = 2(lw + lh + wh)$

$sa = 2(8 \times 6 + 8 \times 16 + 6 \times 16)$

$sa = {544 \: cm}^{2}$

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I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

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3 years ago

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Of the 85% of the students in a class who studied for a test,75% passed the test.Of the 15% of the students who didn't study,30%

galina1969 [7]

Probability works for any given number, so we will assume there are 100 students. Of those 100, 85 of them studied. Since 75% of 85 students passed, we will multiply 85 by 0.75. This gives us 60. So of the students who studied, 60 of them passed. Of the 15 students that didn’t study, 30 percent passed. So we multiply 15 by 0.3. This gives us 4.5 students. Add up 60 and 4.5, and you get 64.5. The probability of passing is 64.5%. If you want to round up, it would be 65%. If you want to round down, it would be 64%. But the most precise answer is 64.5%.

3 0

3 years ago

PLEASE HELP WILL GIVE BRAINLIEST

Naily [24]

Y=-5x -2 should be the equation I’ll go check tho

5 0

3 years ago

Which rate is the lowest price?

lubasha [3.4K]

Answer:

The correct answer is$5.50 for 5

Step-by-step explanation:

5.50/5=1.1

3 0

3 years ago

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(High points) please solve with explanation

AysviL [449]

Answer:

The area and the perimeter of the picture are:

Area = 160 cm^2
Perimeter = 67.31 cm

Step-by-step explanation:

To find the area of that figure, you can find the area how if it was a rectangle and next subtract the area of the triangle in the upper part. The area of a rectangle could be found by the next formula:

Area of a rectangle = base * height

As you can see in the picture, the base is 16 cm and the height is 12 cm, then we replace in the formula:

Area of a rectangle = 16 cm * 12 cm
Area of a rectangle = 192 cm^2

Now, we calculate the area of the triangle to subtract to the area we found and obtain the real area, the formula to obtain the area of a triangle is:

Area of a triangle = (base * height) / 2

The height of the triangle is 8 cm, and the base is 8 cm too, because you subtract to the base of the rectangle (16 cm) the measurements in the upper part (16 - 4 - 4 = 8), Now, we replace in the formula:

Area of a triangle = (8 cm * 8 cm) / 2
Area of a triangle = (64 cm^2) / 2
Area of a triangle = 32 cm^2

We subtract to the found area:

Area of the picture = 192 cm^2 - 32 cm^2
Area of the picture = 160 cm^2

To find the perimeter, you must add all the sides of the picture, but, as you can see, there is a side that doesn't have the measurent, this is the hypotenuse of the triangle used before, but how we know the other sides, we can use Pythagorean theorem: