If you're simplifying the equation your answer is going to become -d^3 +3d^2 +23d -30
Answer:
5 3/4
Step-by-step explanation:
So, lets add the whole numbers together and the fractions together.
2+3=5
3/12+5/12=8/12
8/12 can be simplified to 3/4
so 5 3/4
(Please give brainliest if this helped you, I'm trying to get an achievement)
We need the cross product of the two vectors.
a x b
=<2,-2,-3> x <3,2,2>
=
i j k
2 -2 -3
3 2 2
=<-4+6, -(4+9), 4+6>
=<2,-13,10>
The second vector is obtained by reversing the direction, namely <-2,13,-10>
Thus the two vectors are <2,-13,10> and <-2,13,-10>.
Answer:
I think its A.
Step-by-step explanation:
Answer:
For 1,000 bricks, the amount charged will be the same
Step-by-step explanation:
Let the number of bricks for which they charge the same amount be $x
Thus;
The total cost from the first company will
be;
250 + 0.2(x) = 250 + 0.2x
The second will charge;
400 + 0.05(x) = 400 + 0.05x
Since the amount charged will be equal at x bricks, we need to equate both;
400 + 0.05x = 250 + 0.2x
400-250 = 0.2x-0.05x
150 = 0.15x
x = 150/0.15
x = 1,000
