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Thepotemich [5.8K]
3 years ago
14

Find the area of this figure. Use 3.14 for π. Write your answer as a decimal. ​

Mathematics
1 answer:
vovangra [49]3 years ago
5 0

Answer:

are=πr²

3.14*8*8

=200.96 inches²

Step-by-step explanation:

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Since there are 7 days in one week, 42 cm divided by 7 days will equal to the answer 6 centimeters per day.

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Jackson bought a jar of 240 marbles. The percent bar graph shows the percentage of each color marble in the jar.
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Rewrite the following equations in the form y=mx + b and identify the values of m and b
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2 years ago
The area of a triangle is 20 cm², and the
grandymaker [24]

Answer:

Heavenly,  we need the forumula for the area of a triangle, do you know it?

Step-by-step explanation:

Area of a triangle is (1/2 ) * B*H

where B = base

H = height

then

A = 1/2* B * H

A is given to be 20

B = b

H = b+4

plug all those into the formula,

20 = (1/2)*b*(b+4)

use your algebra skillz  :P

20 = 1/2 *( b^{2} + 4b)

20*2 = b^{2} + 4b

40 = b^{2} + 4b

0 = b^{2} + 4b-40

rewrite the above so it's in x format

x^{2} + 4x -40 = 0

use the quadratic formula to find  x  , and for our problem, remember that x represents the base,  or b,  but don't mix it up with the b in the quadatic fomula,  with the b of the triangle, which is the base,  they are differnt "b"s   :P

X = (b±\sqrt{b^{2}-4*a*c } ) / 2*a

a = 1

b = 4

c = -40

x = (4±\sqrt{4^{2}-4*1*(-40) }  ) /2*1

x = ( 4±\sqrt{16+160} ) / 2

x = (4±\sqrt{176} ) / 2

x = (4±13.266499)/2

x= 2±6.633249

x = 2 + 6.633249 = 8.633

b= 8.633 cm

5 0
1 year ago
What is the volume of the square pyramid with bad edges 12cm and height 12cm?
spayn [35]
The volume of a pyramid is found by multiplying the length, width and height together then dividing by 3.

 length x width x height = 12 x 12 x 12 = 1728

volume = 1728 / 3 = 576 cubic cm


8 0
3 years ago
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