3 years ago

If a circle is 9 pi cm what is the radius of the circle

Mathematics

1 answer:

olganol [36]3 years ago

5 0

Answer:

Step-by-step explanation:

L = 2×π×r

9π cm = 2πr

9 cm = 2r

r = 4.5 cm

You might be interested in

What is 366 divided by 61

Paul [167]

366 divided by 61 is 6.

4 0

3 years ago

Read 2 more answers

Which table represents the statement “A freight train is traveling at an average rate of 45 miles per hour”?

Evgesh-ka [11]

Answer:

the first one

Step-by-step explanation:

the answer is the first one

5 0

3 years ago

Evan wants to buy a digital camera that sells for $199.99 if he uses his dicount card he will save 18%. about how much will he s

ikadub [295]

35.99 ROUND IT OFF TO 36.00 SO THAT MEANS HE PAID 163.99
199.99X 18/100
3599.85/100
36

7 0

3 years ago

What is the equation of the line with a slope of 3/4 that goes through the point (4, 1) in slope-intercept form?

Svetach [21]

Answer:

$y=\frac{3}{4}x+-2$

Step-by-step explanation:

We do not have enough information for slope intercept form. But we can use the point-slope formula to find the information. The formula is $y -y_{1} =m(x -x_{1})$ where we substitute a point (x,y) for $(x_{1},y_{1})$ .

We have m=3/4 and (4, 1). We input m and $x_{1} =4\\y_{1}=1$ .

$y-1=\frac{3}{4} (x-4)$

We now simplify the parenthesis and solve for y.

$y-1=\frac{3}{4} (x-4)\\y-1=\frac{3}{4}x+\frac{3}{4} (-4)$

We convert -4 into a fraction with 1 as the denominator.

$y-1=\frac{3}{4}x+\frac{3}{4} (\frac{-4}{1} )\\y-1=\frac{3}{4}x+\frac{-12}{4}\\y-1=\frac{3}{4}x+-3$

We add 1 to both sides to isolate y,

$y-1+1=\frac{3}{4}x+-3+1\\y=\frac{3}{4}x+-2$

This is slope intercept form. The line as slope 3/4 and y-intercept (0,2) or b=2.

4 0

3 years ago

(Fractions) Rewrite the expression using fithteenths. 2/5 - 1/3 =

Anastasy [175]

Answer:

1/15

Step-by-step explanation:

2/5-1/3=6/15-5/15=1/15

6 0

3 years ago