7.
(2b^2+7b^2+b)+(2b^2-4b-12)
(9b^2+b)+(2b^2-4b-12)
9b^2+b+2b^2-4b-12
11b^2+b-4b-12
11b^2-3b-12
8.
(7g^3+4g-1)+(2g^2-6g+2)
7g^3+4g-1+2g^2-6g+2
7g^3-2g-1+2g^2+2
7g^3-2g+1+2g^2
7g^3+2g^2-2g+1
Hope this helps!
Recall the permutation formula: nPr = n!/(n-r)!
In this question, n=9 and r= 4
Let's plug in those values into the formula
9!/(9-4)! = 9!/5! = 3024
The final answer is 3024!
Answer:
1. A
2. B
Step-by-step explanation:
1. Direct variation is a proportional constant ratio which graphs a line. y= 4/x is not constant because the ratio changes from input to input. This creates a curve.
2. 34 miles per hour for 6 hours is 34 x 6 = 204 miles.
Answer:
40 ft in think
Step-by-step explanation:
