The answer is <span>49x2 _ 84x + 36
</span>
(7x - 6)² is the square of the difference. The general formula would be:
(a - b)² = a² - 2ab + b²
In our expression (7x - 6)², a would be 7x and b would be 6:
(7x - 6)² = (7x)² - 2 · 7x · 6 + 6²
= 7² · x² - 84x + 36
= 49x² - 84x + 36
Answer:
4187 cm^3
Step-by-step explanation:
The diameter is 20
radius = d/2 = 20/2 = 10
The volume is
V=4/3 pi r^3
= 4/3 pi (10)^3
Using pi = 3.14
= 4/3 (3.14) 1000
=4186.6666666
Rounding to the nearest whole number
4187 cm^3
Answer:
6.7
Step-by-step explanation:
A building is 35 feet tall
Answer: D. 35
The scuba diver was 35 feet below sea level.
Answer: A. -35
The basement is 7.6 feet below ground
Answer: E. -7.6
Oliver owes his sister $23
Answer: C. -23
Erica jumped 2.3 feet above ground.
Answer: B. 2.3
Answer: No, it's not
Step-by-step explanation:
19*2=38
50-38 = 12
Alex awnsered 29 which is $17.00 off.