99*(4/3)=x
99*1.333=x
x=132
This week's movie was 132 minutes long, or 2 hours 12 minutes long.
A - 32,500
B- 0.00604
C-2.4x10 to the power of 6
D-1.47x10 to the power of -3
Answer:
Changes made to your input should not affect the solution:
(1): "x7" was replaced by "x^7".
Step by step solution :
Step 1 :
x75
Simplify ———
100
Equation at the end of step 1 :
5 x75
——— • ———
100 100
Step 2 :
1
Simplify ——
20
Equation at the end of step 2 :
1 x75
—— • ———
20 100
Step 3 :
Final result :
x75
————
2000
Step-by-step explanation:
Move everything to one side and factorize by grouping.
x⁴ - 4 = x³ + 2x
x⁴ - x³ - 2x - 4 = 0
(x⁴ - 4) - (x³ + 2x) = 0
(x² - 2) (x² + 2) - x (x² + 2) = 0
(x² - x - 2) (x² + 2) = 0
(x - 2) (x + 1) (x² + 2) = 0
Then
x - 2 = 0 or x + 1 = 0 or x² + 2 = 0
x = 2 or x = -1 or x² = -2
If x is real, then the third case has no solution. Then x = 2 or x = -1. Otherwise, we can solve over the complexes and include x = ± √2 i where i = √(-1).
