All categories

2 years ago

If The radius of a quarter circle is 3 miles. What is the quarter circle's perimeter?

Mathematics

1 answer:

DENIUS [597]2 years ago

7 0

Answer:

6pi miles

Step-by-step explanation:

Answer: 6pi

formula for perimeter: pi*diameter

diameter=radius*2

diameter=3*2=6

6*pi=6pi

You might be interested in

Brian is 2 years older than Malachy. Caroline is 8 years younger than Malachy. If the total of their ages is 66, how old is the

SVETLANKA909090 [29]

Answer:

The eldest of them is Brian and he is 24 + 2 = 26 years old.

Step-by-step explanation:

Let

Malachy age = a

Brian age = a + 2

Caroline age = a - 8

Total of their age = a + (a + 2) + (a - 8)

66 = a + (a + 2) + (a - 8)

collect like terms

66 = a + a + 2 + a - 8

66 = a + a + a - 6

3a = 66 + 6

3a = 72

divide both sides by 3

a = 72/3

a = 24

Malachy age is 24 . Caroline is 24 - 8 = 16 years old.

The eldest of them is Brian and he is 24 + 2 = 26 years old.

7 0

3 years ago

Pls help asap What is the number of degrees in the acute angle formed by the hands of a clock at 6:44?

sashaice [31]

Answer:

264 degree angle

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Type the correct answer in each box.

Mariulka [41]

Answer:

$(x-5)^2+(y+4)^2=100$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance between the center and any point that lie on the circle is equal to the radius

we have the points

(5,-4) and (-3,2)

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$r=\sqrt{(2+4)^{2}+(-3-5)^{2}}$

$r=\sqrt{(6)^{2}+(-8)^{2}}$

$r=\sqrt{100}\ units$

$r=10\ units$

step 2

Find the equation of the circle

we know that

The equation of a circle in standard form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(5,-4)\\r=10\ units$

substitute

$(x-5)^2+(y+4)^2=10^2$

$(x-5)^2+(y+4)^2=100$

6 0

3 years ago

Help me with this math problem please, only this part because I can't seem to solve the last one, I'd like an explanation but it

jonny [76]

Why....

________________

4 0

3 years ago

Jill bought 7 pounds of melon and 0.9 pounds of cherries. How much fruit did she buy in all

erik [133]

Answer:

7.9 pounds of fruit

Step-by-step explanation:

In all means to add, so 7 + .9 = 7.9 pounds

6 0

2 years ago