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3 years ago

What is the circumference of a QUATER CIRCLE if the radius of the quater circle is 2CM

1 answer:

8 0

To find the area of a quarter circle, you simply take a quarter of a full circle. As all quarters are equal, this means that the formula would be πr24πr24. But wait, there's more. If you notice, πr24=πr22πr24=πr22. This coincides with the circle formula, just with half the radius. Notice anything? A quarter of a circle can be calculated in the same way a circle a quarter the size can. This means that a quarter circle is equal to a circle a quarter size. In this same way, a ninth of a circle is equal to a circle of one ninth the size.

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−8x+6−2=−12 what is x?

zubka84 [21]

Answer: x=2

Step-by-step explanation:

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plz give me brainliest

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3 years ago

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A taxi costs $1.25 for the first mile and $0.75 for each additional mile. Yohana spent $10.25 to take a taxi to the airport. If

denis-greek [22]

1.25+.75m+10.25 and 13 miles

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3 years ago

Alia has swimming class every fourth day and diving class every sixth day. If she had swimming class and diving class on 5 june,

dolphi86 [110]

Answer:

June 17

Step-by-step explanation:

the least common multiple of 4 and 6 is 12. Add 12 to June 5 and you get June 17

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3 years ago

The perimeter of a rectangle is 90 feet. If the length is 15 feet more than the width, what are the dimensions of the rectangle?

Y_Kistochka [10]

Answer:

Step-by-step explanation:

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3 years ago

0.3(3a-4)-0.05(8a)(-7a)

Anit [1.1K]

Answer:

2.8a²+0.9a - 1.2

Step-by-step explanation:

Given the expression 0.3(3a-4)-0.05(8a)(-7a)

Expand using the distributive law

0.3(3a-4)-0.05(8a)(-7a)

0.3(3a)-0.3(4)-0.05(8a)(-7a)

0.9a-1.2 - 0.05(8a)(-7a)

0.9a - 1.2 + 2.8a²

Rearrange

2.8a²+0.9a - 1.2

Hence the required expression is 2.8a²+0.9a - 1.2

3 0

2 years ago