Answer:
Step-by-step explanation:
Given the expression (–5a)(2a – 1)
Open the bracket
(–5a)(2a – 1)
= -5a(2a) -5a(-1)
= -10a² + 5a
hence the equivalent expression is -10a² + 5a
Answer:
42
Step-by-step explanation:
(1/(x^2+y^2))+(1/(x+yi))=1
It sounds like are supposed to be real numbers. If so, then we can do the following.
Multiply the second term's numerator and denominator by the conjugate of the denominator:
Since the left hand side is equal to 1, this means it has no imaginary part, so that . Then the real parts of both sides of the equation give us
Answer:
Probability that it does not rain during the entire festival = 0.19584
Step-by-step explanation:
We are given that you and a group of friends are going to a five-day outdoor music festival during spring break.
Also, Probability that there may be rain on first day, P(A) = 0.15
Probability that there may be rain on second day, P(B) = 0.10
Probability that there may be rain on third day, P(C) = 0.20
Probability that there may be rain on fourth day, P(D) = 0.20
Probability that there may be rain on fifth day, P(E) = 0.60
It is also provided that these probabilities are independent of whether it rained on the previous day or not.
Now, probability that it does not rain during the entire festival = Probability that there may not be rain on all five days
= (1 - P(A)) (1 - P(B)) (1 - P(C)) (1 - P(D)) (1 - P(E))
= (1 - 0.15) (1 - 0.10) (1 - 0.20) (1 - 0.20) (1 - 0.60)
= 0.85 0.90 0.80 0.80 0.40 = 0.19584
Answer:
-3a+3bx+2ab
Step-by-step explanation:
Answer:
4.5 inches
Step-by-step explanation:
8-3/4-3/4-3/4-3/4-3/4-3/4= 4 2/4