Answer:
D
Step-by-step explanation:
Given
- 1(x + 7)(x - 4)
each term in the second factor is multiplied by each term in the first factor, that is
leaving the multiplier of - 1 for the time being
x(x- 4) + 7(x - 4) ← distribute both parenthesis
= x² - 4x + 7x - 28 ← collect like terms
= x² + 3x - 28
Hence
- 1(x² + 3x - 28) = - x² - 3x + 28 → D
Let x be width.
Length: 2x
98=2x(x)
2x^2=98
x^2=98/2
x^2=49
x= sqrt(49)
x= 7 (not -7 because distance cannot be in negatives)
Therefore, the dimensions are 7"x14"
Hope I helped :)
Answer:
135
Step-by-step explanation:
180- 45= 135
Answer:
11/21
Step-by-step explanation:
34 and the 10 numbers in the 40s have at least one 4. If you include 30 and 50 in the range you're choosing from, then 11 out of the 21 numbers have at least one 4.
A randomly chosen integer from [30, 50] has a probability of 11/21 of having at least one 4.
I believe the answer is $100800