Answer:
D
Step-by-step explanation:
Given
x² - 10x = - 36
Solve using the method of completing the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 5)x + 25 = - 36 + 25
(x - 5)² = - 11 ( take the square root of both sides )
x - 5 = ± 
( add 5 to both sides )
x = 5 ± i
Thus
x = 5 - i
or x = 5 + i
if its 45 miles per hour then, 0.75 mile/minute.
Answer:
3+5n=5(n+2)-7
- 3+7= 5n+10-5n
- 0 ( As 5n and 5n cancle )
Step-by-step explanation:
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Answer:
70 pennies
Step-by-step explanation:
Sam: 700 pennies
Brother: x pennies
We know his brother has 1/10 of the pennies that Sam has.
700 • 1/10 = 70
Sam's brother has 70 pennies.
Answer:
<u>5 : 3</u>
Step-by-step explanation:
100 paise = 1 rupee
Therefore, the ratio =>
2 rupees : 120 paise
2 : 1.2
10 : 6
<u>5 : 3</u>
