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3 years ago

Elspeth knows that Pi times r almost-equals 9.42 centimeters. What would she need to do to find the circumference?

Mathematics

2 answers:

mr_godi [17]3 years ago

8 0

It will be the first one

marin [14]3 years ago

3 0

Answer:

First one

Step-by-step explanation:

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Convert 67°F to degrees Celsius. If necessary, round your answer to the nearest tenth of a degree.

Sav [38]

Answer:

19.4 degrees Celcius

Step-by-step explanation:

The formula of F to C is (F - 32) / 9 = C.

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3 years ago

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The price of apples is $3.60 for 3 pounds write the price as a unit rate

Finger [1]

Take the total and divide by the amount to get answer.

3.60 /3 = $1.20 per pound

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3 years ago

part of the proceeds from a garage sale was $370 worth of $5 and $20 bills. If there were 4 mote $5 bills and $20 bills, find th

Ainat [17]

Answer:

I am confused by this

Step-by-step explanation:

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3 years ago

Plz help me quick!!!!!!!!!!!!!!!!!!!!!!!!

beks73 [17]

Answer:

Exact Form: 5/2

Decimal Form: 2.5

Mixed Number Form: 2 1/2

Step-by-step explanation:

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3 years ago

A billboard designer has decided that a sign should have 3 ft margins at the top and bottom and 5 ft margins on the left and rig

elixir [45]

Answer:

The width of billboard is "[x]" and the height of billboard is "[y"]. If total area of billboard is $9000 ft^2$ then $9000=xy$

Step-by-step explanation:

• The total width of billboard is [x]. Therefore the width of printed area will be (x-10) by excluding margin of left and right side.

• The total height of billboard is [y]. Therefore the height of printed area will be [(y-6)] by excluding the margin of top and bottom from the total height.

• To find the printed area of billboard calculations are given below:

$& 9000=xy$

$& y=\frac{9000}{x} \\ & A=(x-10)(y-6) \\ & A=xy-6x-10y+60 \\ & A=x\left( \frac{9000}{x} \right)-6x-10\left( \frac{9000}{x} \right)+60 \\ & A=9060-6x-\frac{9000}{x} \\$

On taking the first order derivative of A

$A'=-6+\left( \frac{90000}{{{x}^{2}}} \right)$

$& \left( \frac{90000}{{{x}^{2}}} \right)-6=0 \\ & 6{{x}^{2}}=90000 \\ & x=\sqrt{15000} \\ & y=\frac{9000}{x}=\frac{90000}{\sqrt{15000}}=10\sqrt{150} \\$

• Hence $x=10\sqrt{150}$ and $y=\frac{900}{\sqrt{150}}$

Learn More about Differentiation Here:

brainly.com/question/13012860

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3 years ago

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