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Lynna [10]
3 years ago
10

Help pleaseee will mark brainliest

Mathematics
1 answer:
STatiana [176]3 years ago
4 0
Ais the answer I’m pretty sure
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Find the slope of the line that passes through the points (0, 6) and (20, 14).
mihalych1998 [28]

Answer:

2/5

Step-by-step explanation:

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2 years ago
College LEVEL can you help me? :S
Yanka [14]

Although the formula looks involved, the key here is looking to see where the information goes.

We are given all the pieces but need to convert mph to ft/s to use the formula. Let's do it with 1 mph so that we have a ratio to use. We and solve a unit conversion problem.

\frac{1mile}{hour} * \frac{hour}{60 minutes} * \frac{minute}{60 seconds} * \frac{5280 feet}{mile} = \frac{5280}{60*60} = \frac{5280}{3600} = 1.46666

That ratio tells us that 1 mph is 1.466666 ft/s. Now we solve two proportions.

1 mph / 1.466666 feet per second = 60 mph / x feet per second.

1x = (60)(1.466666)

So x = 88 feet per second.


Next, We repeat for 24 mph.

1 mph / 1.46666 feet per second = 24 mph / x feet per second.

1x = (1.4666666)(24)

x = 35.2 feet per second


Now we have the found appropriate V₁ and V₂. V₁ > V₂, so V₁ is 88 ft/s and V₂ is 35.2 ft/s. The problem tells us θ = 2.3 degrees, K₁ = .4 and K₂ = .06. The rest of the problem is calculator work. Start by substituting our degree measure of 2.3 degrees and the given values in the problem for V₁, V₂, K₁, and K₂

D = \frac{1.05[(88)^{2}-(35.2)^{2}]}{64.4(.4+.06 + (sin 2.3))}

D = \frac{1.05[(7744-1239.04]}{64.4(.46 + (sin 2.3))}

D = \frac{1.05(6504.96)}{64.4(.46 + 0.04013)}

D = \frac{6830.208}{64.4(0.50013)}

D = 6830.208 / 32.208372

D = 212.0631 = 212 (to the nearest foot)


Thus the car needs 212 feet to stop.

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3 years ago
Ms. Roel wrote down her students' grades that were between 90 and 100. This shows the grades she wrote.
atroni [7]
Answer:
the student who have a prime number is Maria
Step-by-step explanation:
4 0
2 years ago
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Nady [450]
24.4/4 =6.1 hours daily is the average hour per day
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3 years ago
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brian is interested in keeping track of the battery life of his laptops. the average battery life he recorded is 48%. if the sum
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Answer:

He owns 6 laptops.

Step-by-step explanation:

48 × 6 = 288.

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