X=22
(X+1)+ (3x+1)= 90
4x+2=90
4x=88
x=22
Answer:
Step-by-step explanation:
<u>With 22% decrease the value after the year is:</u>
- 100% - 22% = 78% of the current value
To find 78% we need to multiply the current value by 0.78.
The same number is multiplied each year to find the decreased value.
<u>The formula for the car would be:</u>
The decay factor is 0.78
Correct choice is B
Answer:
Step-by-step explanation:
(f-g)(x) = f(x)- g(x)
= 3x - 1 - ( x + 2)
=3x - 1 - x - 2
= 2x - 3
Answer:
66π
Step-by-step explanation:
SA= 2πrh+2πr²
SA= 2π x 3 x8 + 2π x 3x3
= 48π + 18π
=66π
hope this helps!
Answer:
<em>A compound proposition that is always false is called a contradiction</em>
Step-by-step explanation: