R2-4r-77 = (r-11)(r+7)
r has to be greater than 11 in order for the formula to represent the area of a rug since a side length cannot be less than or equal to 0.
Answer:
Tamara incorrectly factored the whole expression.
Step-by-step explanation:
Note that
- 21x=3·7·x;
- 56xy=2·2·2·7·x·y.
Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x.
Thus,
21x+56xy=7x(3+8y).
Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression.
Answer:
63
Step-by-step explanation:
score 75 is one standard dev below the mean ====>to the mean encompasses approx 34% of scores
.34 * 186 = 63
Answer:
UW=14
Step-by-step explanation:
First we know that UV+VW=UW, so:
4+x+10=2x+14
Solve for x first:
x+10=2x+10
10=x+10
x=0
Then, substitute the X
2(0+14)=14=UW
To check your answer, substitute and add UV and VW
4+(0)+10
14
<em>Hope this helped! Have a good day!</em>
