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3 years ago

7

Which phrase could be represented by this expression? A. seven less than one-fourth of a number B. four times the difference of

a number and seven C. one-fourth the difference of a number and seven D. seven less than four times a number

1 answer:

e-lub [12.9K]3 years ago

4 0

I could help answer the question but, what is the expression?

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the cable of a hoist has a cross-section of 80 mm2. the hoist is used to lift a crate weighing 500 kg. what is the stress in the

Daniel [21]

Answer:

stress on the cable is 61.312mpa

If steel is used, extension will be 0.91968mm

If polypropylene is used, extension will be 0.1532mm

Step-by-step explanation: detailed explanation and calculation is shown in the image below

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3 years ago

If f(x) = 6x − 5 and f(5a) = 73, then what is the value of a?

Dmitrij [34]

Answer:

a =13/5

Step-by-step explanation:

f(x) = 6x − 5

f(5a) = 6*5a − 5=73

30a -5 = 73

Add 5 to each side

30a -5+5 = 73+5

30a =78

Divide by 30

30a/30 = 78/30

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3 years ago

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A ball is launched into the sky at 54.4 feet per second from a 268.8 meter tall building. The equation for the ball’s height, h,

worty [1.4K]

Answer:

7.41

Step-by-step explanation:

Vertical component:

S = 268.8

U = 0

V =?

A = 9.8

T=?

S = ut + 0.5at^2. u = 0

268.8 = 0.5x9. 8xt^2

T = 7.41 seconds

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3 years ago

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I need help help please

Nitella [24]

Answer:

I think it is b

Step-by-step explanation:

I hope this is correct

6 0

3 years ago

Help plz<br> I am so confused

ankoles [38]

The answer to number 18 is - 0.25 or 1/4

If you need help with the other ones ask.

<em>Hope this will help :)</em>

8 0

3 years ago