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geniusboy [140]
3 years ago
12

What is the area of the base of a cone that has a slant height of 42.5 inches, a height of 38 inches, and a radius of 19 inches?

Mathematics
2 answers:
Vesnalui [34]3 years ago
4 0
Only the radius is needed to find the base area.
The base is a circle with radius 19 inches
Area = pi * 19^2 = 361*pi
The first (top-most) answer choice is the correct one.
Assoli18 [71]3 years ago
4 0

Answer:

19 inches

Step-by-step explanation:AB≈1134.11in²

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Answer: y= -x + 7

Solution:

Step 1 : find the slope using the equation using the pair of coordinates that are given i.e A (−7,14)  B (−21,28) ( name them A and B respectively so they can be easily named as x1, y1 and x2,y2 respectively)

m = y2-y1/x2-x1

m = 28-14 / -21 -( -7)

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Step 2 : Find the y intercept using the line of equation (use and one of the given coordinates either A or B)

Using A ( -7, 14)

y= mx+ b

14 = (-1)(-7) + b

14= 7 + b

14-7 = b

7 =b

So,

y=mx+b

Insert m and b

y= -x + 7





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