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Marina86 [1]
2 years ago
10

Find the slope of the line that contains the following pair of points: (2, 4), (0, 8).

Mathematics
1 answer:
Ugo [173]2 years ago
4 0
8-4/0-2 =4/-2= -2
So it has a negative slope
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Nathaniel can weld a railing in 75 minutes. Brenda can weld a railing 25 minutes faster. If they work together, how many minutes
geniusboy [140]

Answer:

30 minutes

Step-by-step explanation:

Nathaniel can weld 1 rail in 75 minutes, so he welds 1R = 75 min,  and Brenda can weld 1 rail in 50 minutes (25 minutes faster than Nathaniel), so she welds

1R = 50 min

We want to see how many minutes it takes them both, so we need to solve both problems for the minute unit

Nathaniel:  (1/75)R = 1 min   (he can do one seventy-fifth of a rail per minute)

Brenda:  (1/50)R = 1 min (she can do one fiftieth of a rail per minute)

notice, the equation is 1/(minutes it takes them), and we want to see how long it takes both of them, so we get the equation:

1/75 + 1/50 = 1/x

Simplify the left side with common denominator of 57(50) = 3750

We get

125/3750 = 1/x

We can cross multiply to get rid of the fractions...

125x = 3750

Divide both sides by 125 to solve for x...

x = 30, so it would take them 30 minutes to weld a rail if they work together.

5 0
3 years ago
Can someone answer this question??
klio [65]

Answer: B

Step-by-step explanation:

8 0
3 years ago
You are building a curio cabinet in the form of a rectangular prism that must be 4 feet tall with a volume of 48 cubic feet. The
Mekhanik [1.2K]

Answer:

d) 3 feet by 4 feet

Step-by-step explanation:

Volume of the prism = 48 feet³

Height if the prism = 4 feet

To determine the possible values of the length and width of the prism let's divide the volume by the height.

So 48/4 = 12

So we'll be looking for a product of two numbers to give us 12

And it's between 12 and 1, 4 and 3 , and 6 and 2.

We have only 4 and 3 in the option.

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3 years ago
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<span>C) Right

https://www.desmos.com/calculator/vf2qksnpwe

</span>right triangle
<span>Proof: You can apply the Pythagorean theorem.</span>
3 0
3 years ago
If an impulse travels 100 m/s, about how long will it take the impulse to travel 10 meters?
PtichkaEL [24]

Answer:

0.1 seconds

Step-by-step explanation:

10/100=0.1

6 0
3 years ago
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