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3 years ago

Greg borrowed $100 from his parents. After he did some chores, they reduced the amount of his debt by $25.

Mathematics

1 answer:

Mariana [72]3 years ago

3 0

Answer:

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A cylinder has a diameter of 40 feet and a height of 32 feet. What is the surface area of the cylinder? Express the answer in

mafiozo [28]

Answer:

$6524.51 ft^2$

Step-by-step explanation:

The surface area of a cylinder is given as;

$SA = 2\pi rh + 2\pi r^2$

where r = radius

h = height

The cylinder has a height of 32 feet and a diameter of 40 feet. This means that the radius is:

40 / 2 = 20 feet

The surface area is therefore:

$SA = (2*\pi* 20 * 32) + (2*\pi *20^2)\\\\SA = 4021.24 + 2513.27\\\\SA = 6524.51 ft^2$

The surface area of the cylinder is $6524.51 ft^2$ .

5 0

3 years ago

I just need A,B,C I do t get it

cupoosta [38]

R-4+3r-16=180
4r-20=180
4r=200
r=50

Angle D
r-4
50-4
46

Angle E
3r-16
3•50-16
150-16
134

3 0

3 years ago

What is the value of the discriminant? 4x2+15x=3x-9

Ray Of Light [21]

Answer:

Step-by-step explanation:

Use the values of a , b , and c to find the discriminant.

8 0

3 years ago

The Ms Jodi has 950 non fiction books. 40% of those books are about science topics and 30% are about history. How many books are

Bad White [126]

Step-by-step explanation:

well first you need to divide all the percents by 100.

40% = .40

30%= .30

and now you need to multiply those two by 950.

.40/950=4.20

.30/950=3.15

so ms jodi has about 3 books on history

8 0

3 years ago

I need help ASAP!! 13 points

OleMash [197]

Answer:

The correct answer is H

Step-by-step explanation:

1/4 of a wall in 2/3 of an hour is 40 min

so a wall takes 160 min which is 2 hours and 40 min

so 3 walls takes 8 hours

6 0

3 years ago

Read 2 more answers