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3 years ago

a circle with circumference 20 has an arc with a 72 degrees central angle. what's the length of the arc

Mathematics

1 answer:

Ugo [173]3 years ago

6 0

Answer:

4 units.

Step-by-step explanation:

Let's use a ratio

72 : 360

8 : 40

1 : 5

The arc is $\frac{1}{5}$ of the total circumference.

$\frac{1}{5} *20=4$

The arc length is 4

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Vinvika [58]

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Step-by-step explanation:

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4 years ago

What is the unit rate of five and 15?

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3 years ago

Julie works in chicago and has to pay $14 per day on tolls and $76 a day for gas. If she makes $19 an hour how many hours must s

enot [183]

Answer:

19 hours.

Step-by-step explanation:

T = -14 -76 + 19h

The -14 is the cost for tolls, and the -76 is the cost for gas. The 19h is the amount she'll get per hour if she makes $19/hour. And T is the total profit

We want to solve for h if T = 260

260 = -14 -76 + 19h

+14 +14

274 = -76 +19h

+76 +76

350 = 19h

/19 /19

18.42 = h

She must work 19 hours.

Hope this helps!

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4 years ago

How is the equation for a vertical line expressed?

DanielleElmas [232]

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3 years ago

Compute using significant digits. What is the area of a parallelogram with length 17.25 mm and width 5.065 mm?

Dmitriy789 [7]

Answer: Option 'a' is correct

Step-by-step explanation:

Since we have given that

Length of parallelogram =17.25 mm

Width of parallelogram =5.065 mm

As we know the formula for " Area of parallelogram"

Area of parallelogram is given by

$Area= length \times breadth\\\\17.25\times 5.065=87.03 \ mm^2$

Hence, option 'a' is correct .

8 0

3 years ago