3 years ago

What is the radius of a circle whose area is 36π cm^2 (to the second power)

Mathematics

1 answer:

Pavel [41]3 years ago

7 0

I think 3.39 im not sure

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baherus [9]

3,352 is the answear.

7 0

3 years ago

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Together, Tim and Tom have $2.40. Tim has three times as much as Tom. How much does each have?

Phoenix [80]

X = how much Tim has
y = how much Tom has
x + y = 2.40
x = 3y
Substitute 3y for x
3y + y = 2.40
4y = 2.40
y = 0.60
Plug in y value into previous equation
x = 3(0.60)
x = 1.80
ANSWERS: Tim has $1.80 and Tom has $0.60

8 0

3 years ago

Given that cos (x) = 1/3, find sin (90 - x)

drek231 [11]

$\sin{(A - B)} \equiv \sin{A}\cos{B} - \cos{A}\sin{B} \\\\
\therefore \sin{(90 - x)}\\
 = \sin{(90)}\cos{(x)} - \cos{(90)}\sin{(x)} \\
= (1)\cos{(x)} - (0)\sin{(x)} \\
= \cos{x} - 0 \\
= \cos{x} \\
= \frac{1}{3}
$