30 + 75x= 210
Subtract 30 from both sides
75x=180
Divide both sides by 75
X =2.4
Worked 2.4 hours
Answer:
Step-by-step explanation:
exterior angle=sum of opposite two interior angles=70+50=120°
c.
120=50+?
?=120-50=70°
Answer:

Step-by-step explanation:
Given

Required
Express as a standard polynomial
We have:

Rewrite as:

Open bracket

Add like terms

Answer:
−1.13348172≤x≤1.13348172
Step-by-step explanation:
For this problem
Add −5x2 to both sides of the inequality.
−x16 + 1 + 5x2≥0
Convert inequality to an equation.
−x16 + 1 + 5x2 = 0
Factor −x16 + 1 + 5x2
Set the factor equal to 00.
x16−5x2−1 = 0
x≈ − 1.13348172,1.13348172
so,
x≤ − 1,13348172
−1.13348172≤x≤1.13348172
x≥1.13348172
−1.13348172≤x≤1.13348172
Answer:
52.61
Step-by-step explanation:
First let turn 9.6% into a decimal
0.096
Then,
48 x 0.096 = 4.608 {Round} 4.61
48 + 4.61=52.61