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Alex
3 years ago
5

PLEASE HELP ASAP!

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0

Answer:

16π cm²

Step-by-step explanation:

We know that

Circumference = 2πr

=> 8π = 2πr

=> 8 = 2r

=> 8/2 = r

=> 4 = r

Now,

Area of circle = πr²

=> π × (4)²

=> π × 16

=> 16π cm²

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PICTURE ABOVE <br> find perimeter in inches <br> PLEASE HELP !!!
Vsevolod [243]

Answer:

C. 52

Step-by-step explanation:

First, find the base of the triangle. You can do this by looking at the top of the figure. 14 inches is the width of the rectangle, and 20 inches is the width of the rectangle and the base of the triangle. You can find the base of the triangle by subtracting.

20-14=6

The base of the triangle is 6. The height of the triangle is equal to the height of the rectangle, 8. Now you need to find the hypotenuse of the triangle using the Pythagorean theorem:

a^2+b^2=c^2

c is the hypotenuse. Find c:

6^2+8^2=c^2\\36+64=100\\\\\sqrt{c^2}= \sqrt{100}\\c=10

The hypotenuse of the triangle is 10. Now that you know the hypotenuse, you can find the perimeter. Add all the sides:

10+20+8+14\\30+8+14\\38+14\\52

The perimeter is 52 inches.

5 0
4 years ago
A line passes through the point (6,-4) and has a slope of 3/2 I Write an equation in point-slope form for this line.​
dimaraw [331]

Answer:

y-4=3/2(x+4)

Step-by-step explanation:

If you plug the numbers into the equation (y-y1=m(x-x1)), you get y-4=3/2(x+4).

HOPE THIS HELPS

3 0
3 years ago
Both similar triangles , solve for x
Lilit [14]

Answer:

51

Step-by-step explanation:

(64/28) X 21 = x-3

48  = x - 3

+3         +3

51

3 0
3 years ago
68 students choose to attend one of three after school activities: football, tennis
kolezko [41]

Answer:

Total students = 68

boys = 24

football total = 3

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therefore probability = 16/68

which is = 4/17

hope it helps

8 0
3 years ago
Read 2 more answers
Please help giving brainiest explain
oee [108]

Answer:

Slope: -2/3

Y-intercept: (0, 9)

Equation: y = -x + 9

3 blocks away: 6 visits

Step-by-step explanation:

Calculate slope from point (1, 8) to point (3, 7) on the line.

The y-intercept is where the line meets the y-axis.

The equation took a bit of guessing, but the -x is the y = x line, but reversed. 9 is the y-intercept.

Check the point on the line where x = 3.

Hope this helps!

6 0
3 years ago
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