Answer:
-3x^2 -( 4x^2 -x) = -3x^2 - 4x^2 +x = -7x^2 +x
Step-by-step explanation:
Find the total spaces:
2 + 3 + 3 = 8 total spaces.
there are 3 white, so the probability would be 3/8 = 0.375, rounded to the nearest hundredth = 0.38
Answer: 18 units squared.
Step-by-step explanation:
Assuming you meant the height was 9 and the base was 4, or that the base was 9 and the height was four, simply do A = 1/2bh to get 18.
Answer:
The numbers are either {-3, -2, -1} or {7, 8, 9}.
Step-by-step explanation:
Let the smallest integer be represented by x. The middle number is x+1, and the largest number is x+2.
The product of the smaller and larger number is (x)(x+2).
15 more than 6 times the middle number is 6(x+1)+15.
(x)(x+2)=6(x+1)+15
x^2+2x=6x+6+15
x^2+2x=6x+21
x^2-4x-21=0
(x-7)(x+3)=0
x=-3 or x=7
The numbers are either {-3, -2, -1} or {7, 8, 9}.
