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noname [10]
3 years ago
13

Find the work done when a crane lifts a ​-pound boulder through a vertical distance of feet. Round to the nearest​ foot-pound.

Mathematics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

72000ft-1b

hope it helps

please mark brainliest

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I need help with 7th grade math please 30 points need help ASAP
lukranit [14]

Answer:

Area = 210

Step-by-step explanation:

Given:

  • Base = 15
  • Height = 14

To find:

  • Area of parallelogram

Steps:

A = b · h

= 15 · 14

= 210

7 0
2 years ago
Read 2 more answers
F(x)=x^2-2x+3 g(x)=x^2-2x-4 Find f(g(-2)
olga55 [171]

Answer:

f(g(-2))=11

Step-by-step explanation:

We are given the two functions:

f(x)=x^2-2x+3\text{ and } g(x)=x^2-2x-4

And we want to find:

f(g(-2))

We will find g(-2) first. So:

g(-2)=(-2)^2-2(-2)-4=4+4-4=4

Thus:

f(g(-2))=f(4)

Evaluate:

f(4)=(4)^2-2(4)+3=16-8+3=11

Therefore:

f(g(-2))=11

4 0
3 years ago
The height of a cylinder is 5 centimeters. The circumference of the base of the cylinder is 16 centimeters. Find the lateral sur
ad-work [718]

The lateral surface area of the cylinder = 80 sq cm.

Step-by-step explanation:

Given,

The circumference of the base of the cylinder is 16 cm

So, 2 X pi X r = 16 cm ( where r be the radius of the base)

Now, the lateral surface of the cylinder = 2 X pi X r X H ( where H be the height = 5 cm)

= 16 X 5 sq cm

= 80 sq cm

Hope it helps you.

8 0
3 years ago
Molly earns a rebate each month on her movie tickets and books. She earns $0.25 for each movie ticket and $2 for each book. Last
stiv31 [10]

Answer:

8 books

Step-by-step explanation:

Earning for each ticket is $0.25 and for each book is $2

If total earning for 4 tickets and x books is $17, then the equation is:

  • 0.25*4 + 2x = 17
  • 1 + 2x = 17
  • 2x = 16
  • x = 16/2
  • x = 8

So Molly purchased 8 books

3 0
3 years ago
Jenny bought a 5 notebooks and 2 pencils, and the total was 9 dollars.
weeeeeb [17]
You would solve this with simultaneous equations, so if we write it as:
5n + 2p = 9
3n + 2p = 6
(subtract)
2n = 3
÷ 2
notebooks = 1.5

Now you would substitute it in:
(3 × 1.5) + 2p = 6
4.5 + 2p = 6
- 4.5
2p = 1.5
÷ 2
pens = 0.75

So your final answer is notebooks are $1.50 and pens are $0.75, I hope this helps!
6 0
3 years ago
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