Answer:
First One: Yes
Second One: No
Step-by-step explanation:
Direct Variation Formula: y=kx
1. every single on is y=x times 6, fits the formula
2. there is no easy multiplying repeating pattern of how x=y
The answer is 21 because I added 8 + 10+3=and I got 21
Answer:
The probability that a club member picked randomly is female, given that the person prefers swimming on weekends, is 0.8 = 80%.
Step-by-step explanation:
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Prefers swimming on weekends.
Event B: Being female.
25% prefer swimming on weekends
This means that
It is found that 20% of the members in that city prefer swimming on weekends and are female
This means that
So
The probability that a club member picked randomly is female, given that the person prefers swimming on weekends, is 0.8 = 80%.
Complete the square
factor out linear coefient
f(x)=7(x^2+6x)
take 1/2 of linear coefient and square it and add negative and positive to inside
6/2=3, 3^2=9
f(x)=7(x^2+6x+9-9)
complete squre
f(x)=7((x+3)^2-9)
expand
f(x)=7(x+3)^2-63 is veretx form
vertex is (-3,-63)