Answer:
20 + (-35)
Step-by-step explanation:
(-20) + 10 = -10
20 + (-35) = -15
Answer:
In 4,231, the value of the digit 3 is 100 times the value of the digit 3 in 3,421.
Step-by-step explanation:
Hope this helps.
Answer:
(-3)^3
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
x -
= 9 ← square both sides
(x -
)² = 9²
x² - 2 +
= 81 ( add 2 to both sides )
x² +
= 83
Now
(x +
)² = x² +
+ 2, thus
x² +
= 83 + 2 = 85
(x +
)²= 85 ( take the square root of both sides)
x +
= 