Answer:
3x^4 + 7x^3 - 5x^2 + 8x - 13
Step-by-step explanation:
(3x^4 + 7x^3 - 9) - (5x^2 - 8x + 4) =
The negative sign to the left of the second set of parentheses changes every sign inside the parentheses.
The first set of parentheses is unnecessary, so we just drop it.
= 3x^4 + 7x^3 - 9 - 5x^2 + 8x - 4
Now we combine like terms.
= 3x^4 + 7x^3 - 5x^2 + 8x - 13
Answer:
28 cm
Step-by-step explanation:
dilation means to increase or decrease the shape so find the amount it was dilated by dividing -12 by -3 or 20/5 u should get 4 then multiply 7 by 4.
Step-by-step explanation:
Total money spent is Airline ticket + the sales tax
Airline ticket = 250
The sales tax = 250 * 7.5 / 100
=> 5 * 7.5 / 2
=> 37.5 / 2
=> 18.75
So, total = 250 + 18.75
=> 268.75
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If they are replaced, then the two events become independent of each other.
So, it becomes, what is the probability that you will pick a black card? Since there are an equal amount of red and black, you will have 1/2 chance.
Now, what is the probability of selecting a heart? Well, we have 4 suits, so you'll have a 1 in 4 chance at selecting a heart.
Since we want them simultaneously, we have to multiply them together to yield: 1/8
Answer: the key idea of the transformation called a rotation is the moving of the plane a certain angle around a fixed point.
Step-by-step explanation hope this helps