Answer:
1) 5f
2) 45gm-7g
Step-by-step explanation:
hope this helped!
Answer:
<em>π/2 and π/3</em>
Step-by-step explanation:
Given the equation 2cos²x - cosx = 0, to find the solution to the equation, we will follow the following step.
let P = cosx
The equation becomes 2P²-P = 0
P(2P-1) = 0
P = 0 and 2P-1 = 0
P= 0 and P = 1/2
Since P = cosx
cosx = 0 and cos(x) = 1/2
If cos(x) = 0
x = cos⁻¹0
x = 90⁰
x = π/2
If cos(x) = 1/2
x = cos⁻¹1/2
x = 60⁰
x = π/3
<em>Hence the solutions to the equation are π/2 and π/3.</em>
.3 is that rounded to the nearest tenth
Answer:
A= 5/7b +8
Step-by-step explanation:
The basic idea is that you can do anything you want (except divide by
zero) to either side of the equation, so long as you do the same thing
to the other side, too.
Answer: 45
Explanation: Remember that dividing by a fraction is the same thing as <em>multiplying by the reciprocal</em> of that fraction or that fraction flipped.
Also, think of the 15 in this problem as 15/1.
So we can rewrite 15/1 ÷ 1/3 as 15/1 · 3/1.
Multiplying across the numerators and the denominators,
we find that our answer is 45/1 or just 45.
