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PilotLPTM [1.2K]
3 years ago
8

I need help with this Khan plz

Mathematics
1 answer:
tigry1 [53]3 years ago
8 0
Find the constant of proportionality
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The diameter d in inches of a rope required to lift a weight of w tons is given by the function d = 10w/ π . How much weight can
Ilia_Sergeevich [38]

Answer:

Option D) 1.26 tons

Step-by-step explanation:

we have

d=\frac{10w}{\pi}

where

d is the diameter of a rope in inches

w is the weight in tons

we have

d=2(2)=4\ in ----> the diameter is two times the radius

substitute the value of d and solve for w

4=\frac{10w}{\pi}

w=\frac{4\pi}{10}=0.4\pi\ tons

assume

\pi =3.14

0.4(3.14)=1.26\ tons

7 0
3 years ago
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umka21 [38]
I think 4,6
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2 years ago
A rectangle's width is 5 feet less than its height. If the area of the rectangle is 564 square feet, what is its length, in feet
larisa86 [58]

We can set up an equation: x * (x + 5) = 564, where x is the length of the rectangle we are trying to solve. Using the quadratic formula to solve this, we eventually come up with approximately 21.38 as a value for x. We can verify this by typing 21.38 * (21.38 + 5) into a calculator and seeing that it approximately equals 564.

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3 years ago
True or false<br><br> log(A+B)=logA+logB
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True because log times A and B will also be logA and Log B
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20 weeks : 14 Days in simplest form? <br><br> Can you explain as well??
PilotLPTM [1.2K]
14 days = 2 weeks

20weeks : 14 days = 20 weeks : 2 weeks = 20 weeks / 2 weeks = 10:1

hope it helps!
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3 years ago
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