First off, 2/10 can be simplified. 2 divided by 2 is 1. So the numerator is 1. 10divided by 2 is 5. Denominator is 5. So right now your first fraction is 2/5. 2/5 divided by 1/2. First, you keep your first fraction. You switch the division sign to multiplication, and always do the reciprocal (flip it around) of the second fraction. So instead of 1/2, it would be 2/1. Then multiply. 2/5 x 2/1. 2x2 is 4, 5x1 is 5. 4- numerator/5-denominator. Your answer is 4/5.
Answer is 7
Work
4C-8= 20
+8
4C=28
28/4=7
Answer:
Step-by-step explanation:
Answer:
<h2>18</h2>
Step-by-step explanation:
let us model the cost
let the cost be y and the number of movie channel be x
for 3 comcast
y=50+5x-----1
and for Xfinity
y=41+6.5x-------2
to solve for the number of movie channel so that the two (3 comcast and Xfinity) will pay the same, we need to equate 1 and 2
50+5x=41+6.5x
50-41=6.5x-5x
9=0.5x
x=9/0.5
x=18
I'm assuming that you meant "3 (csc x)^2 - 4 = 0." Your "csc^2x" is ambiguous.
If 3 (csc x)^2 - 4 = 0, then 3[1/sin x]^2 - 1 = 0 is equivalent. We need to solve this for x.
First, rewrite this as 3[1/sin x]^2 = 4.
Next, divide both sides by 3: [1/sin x]^2 = 4/3
This quadratic equation has two roots, one positive and one negative.
Supposing [1/sin x]^2 = 4/3, then 1/sin x = 2/sqrt(3). Inverting both sides, sin x = sqrt(3)/2. Find x by finding the inverse function:
x=arcsin sqrt(3)/2 so x = 60 degrees, or pi/3 radians.
Now find the other root or roots.
