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Mumz [18]
3 years ago
8

Hailstones form when strong winds support ice particles high in clouds. We can assume that the diameter of a hailstone varies di

rectly with the time the hailstone takes to form. A hailstone with a diameter of 0.75 inches takes about 12 minutes to form. Write an equation that gives the hailstone’s diameter d after t minutes. Then find the diameter of a hailstone that takes 20 minutes to form.
Mathematics
1 answer:
egoroff_w [7]3 years ago
8 0

Answer:

the equation y= ax represents direct variation between x and y is said to vary directly with x. the nonzero constant a is called the constant of variation.

Step-by-step explanation:

I'm not sure if that's what you were asking for but there .

brainiest please.

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The area of a rectangle is 27ft squared, and the length of the rectangle is 3ft less than twice the width. Find the dimensions o
oksano4ka [1.4K]

Answer:

width =4.5ft

length=6ft

Step-by-step explanation:

w = x

L = 2x-3

area = L*w

27 = x(2x-3)

27=2x^{2} -3x

2x^{2} -3x-27=0

2x^{2} +6x-9x-27=0

2x(x+3)-9(x+3)=0

(2x-9)(x+3)=0

2x-9=0

2x=9

x=9/2

x=4.5

L=2x-3=2*4.5-3 =9-3=6

6 0
3 years ago
What is 75 + 15x ≥ 140
melomori [17]
75+ 15x ≥ 140
⇒ 15x ≥ 140-75
⇒ 15x ≥ 65
⇒ x ≥ 65/15
⇒ x ≥ 13/3
⇒ x ≥ 4 1/3

Final answer: x ≥ 4 1/3~
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3 years ago
HELP PLZ Which confidence level would produce the widest interval when estimating
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Answer:

83%

Step-by-step explanation:

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7 0
3 years ago
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A car is traveling at a speed of 79 feet per second. (a) what is its speed in kilometers per hour?
AysviL [449]
79 ft/s = 0.0240792 km/s

0.0240792 x 60 = 1.444752 km/minute
<span>1.444752 x 60 = </span><span>86.68512 km/hour
</span>
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6 0
3 years ago
Solve the following logarithmic equations.<br> 5 log(x + 4) = 10
Ede4ka [16]

Answer:

x=e^{2} -4

Step-by-step explanation:

Divide both sides by 5:

log(x+4)=\frac{10}{5} \\log(x+4)=2

Cancel logarithms by taking exp of both sides:

e^{log(x+4)}=e^{2}  \\x+4=e^{2}

Solve for x subtracting 4 from both sides:

x=e^{2} -4

6 0
3 years ago
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