Answer:
A.
Step-by-step explanation:
When you simplify (a - b)(a^2 - ab + b^2) you end up a^3 - b^3, instead of a^3 + b^3. The rest all work out.
Answer:
3b(2a+1)(2a-1)
Step-by-step explanation:
12a²b-3b
3b(4a²-1)
3b{(2a)²-1²)}
3b(2a+1)(2a-1)
Answer:
This problem is about linear equations. We assume Dale drive X miles, and the total cost is $Y, then we can get:
Plan I: Y=38+0.11X
Plan II: Y=49+0.07X
When both plans cost the same, 38+0.11X=49+0.07X. We will get X = 275miles, and Y=$68.25
Step-by-step explanation:
The perimeter is 20 feet, half the perimeter Would be 10 feet.
Need 2 numbers when added together equal 10 and when multiplied together equal the area of 21.
3 and 7 The pond is 3 feet by 7 feet.