Answer:
2x3+15x2+25x−6
Step-by-step explanation:
Multiply each term in the first expression by each term in the second expression and combine like terms.
Answer:
32
Step-by-step explanation:
2x = 64
/2 /2
x = 32
So, The length is 8 cm longer than the width.
Area of a rectangle = l *w
48 cm^2 = l *w
l = w+8
48 cm^2 = w * w+8
48 = w^2 +8w
^ that's the equation that models it. Or any other one listed
Answer:
11° and 79°
Step-by-step explanation:
Complementary angles sum to 90°
let x be one angle then the other angle = x + 68 , hence
x + x + 68 = 90
2x + 68 = 90 ( subtract 68 from both sides )
2x = 22 ( divide both sides by 2 )
x = 11
The 2 angles are x = 11° and x + 68 = 11 + 68 = 79°
As a check : 11 + 79 = 90
If I've understood your question, you're asking about this:

A number raised to a negative power is the same as the inverse of that number raised to the positive power. Basically the number moves from the numerator to the denominator or the denominator to the numerator. So 1/(3^-2) is the same as 1 / (1/3^2), which is the same as 3^2. That means what you have here is 4 x 3^2, which is 36.