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3 years ago

What is 7-?=4 i need help

Engineering

2 answers:

aleksandr82 [10.1K]3 years ago

6 0

Answer:

Explanation:

7-3=4

SashulF [63]3 years ago

5 0

Answer:

Explanation:

Because when you do 7 - 3 it gives you 4. You check this by adding 4 to 3 and you will get 7. Also you can figure it out the number by subtracting 7 and 4 to get your answer.

Your answer will be 3.

I hope this helped. I am sorry if you get this wrong. Have a wonderful day.

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2 years ago

A right triangle has a base of 12 inches and a height of 30 inches, what is the centroid of the triangle?

aliina [53]

Answer:

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2 years ago

To revise a monthly budget, changes in which categories might need to be addressed? Check all that apply.

GREYUIT [131]

Income

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2 years ago

The underground cafe has an operating cash flow of $187,000 and a cash flow to creditors of $71,400 for the past year. During th

Serggg [28]

Answer:

cash flow to stockholders = $39,700

Explanation:

Operating cash flow = $187,000

cash flow to creditors = $71,400

Net working capital = $28,000

Net capital spending = $47,900

Cash flow to stockholders = ?

CFF = operating cash flow - net working capital - net capital spending

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cash flow to stockholders = CFF - cash flow to creditors

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Hence $39,700 is the amount of the cash flow to stockholders for the last year.

3 0

3 years ago

A square-thread power screw is used to raise or lower the basketball board in a gym, the weight of which is W = 100kg. See the f

KIM [24]

Answer:

power = 49.95 W

and it is self locking screw

Explanation:

given data

weight W = 100 kg = 1000 N

diameter d = 20mm

pitch p = 2mm

friction coefficient of steel f = 0.1

Gravity constant is g = 10 N/kg

solution

we know T is

T = w tan(α + φ ) $\frac{dm}{2}$ ...................1

here dm is = do - 0.5 P

dm = 20 - 1

dm = 19 mm

and

tan(α) = $\frac{L}{\pi dm}$ ...............2

here lead L = n × p

so tan(α) = $\frac{2\times 2}{\pi 19}$

α = 3.83°

and

f = 0.1

so tanφ = 0.1

so that φ = 5.71°

and now we will put all value in equation 1 we get

T = 1000 × tan(3.83 + 5.71 ) $\frac{19\times 10^{-3}}{2}$

T = 1.59 Nm

power = $\frac{2\pi N \ T }{60}$ .................3

put here value

power = $\frac{2\pi \times 300\times 1.59}{60}$

power = 49.95 W

and

as φ > α

so it is self locking screw

8 0

3 years ago