Simplifying: 4x + 52 + 8x + -10 = 90
Reorder the terms: 52 + -10 + 4x + 8x = 90
Combine like terms: 52 + -10 = 42 42 + 4x + 8x = 90
Combine like terms: 4x + 8x = 12x 42 + 12x = 90
42 + 12x = 90
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-42' to each side of the equation. 42 + -42 + 12x = 90 + -42 Combine like terms: 42 + -42 = 0
0 + 12x = 90 + -42
12x = 90 + -42
Combine like terms: 90 + -42 = 48
12x = 48
Divide each side by '12'. x = 4 from https://www.geteasysolution.com/4x+52+8x-10=90
Period is from 0 to 2pi
take the deritivive then take it again
we get f''(x)=-4cos²(x)-2cos(x)+2
it is negative between 0 and pi/3 and also between 5pi/3 and 2pi
concave down in the interval
![[0, \frac{ \pi }{3}]](https://tex.z-dn.net/?f=%5B0%2C%20%5Cfrac%7B%20%5Cpi%20%7D%7B3%7D%5D)
U
![[\frac{ 5\pi }{3},2\pi]](https://tex.z-dn.net/?f=%5B%5Cfrac%7B%205%5Cpi%20%7D%7B3%7D%2C2%5Cpi%5D)
He didn't distribute the negative in front of the 2 which messed up the rest of the steps
x - 2(5 - 2x) = 10
x - 10 + 4x = 10
5x = 10 + 10
5x = 20
x = 4
The rational numbers are explained below.
<h3>What are rational numbers?</h3>
The complete question can't he found. Therefore, an overview will be given. Rational numbers are the numbers that can be represented by the quotient p/q of two integers.
In this case, p and q are integers and p isn't equal to 0.
The examples include 1/5, 1/3, -2, 5, etc.
Learn more about rational numbers on:
brainly.com/question/1535013
#SPJ1
First, convert all fractions to decimal form. Just divide the top by the bottom.
7/15 = 0.466666.....
A 0.6
B 0.4
C 0.6
D 0.5333333....
As we can see, B 0.4 is the answer to this question.
So, 2/5 is the answer.
