Answer:
(3.5, 1.5) and (1, -1).
Step-by-step explanation:
As both expressions in x are equal to y we can write:
2x^2 - 8x + 5 = x - 2
2x^2 - 9x + 7 = 0
(2x - 7)(x - 1) = 0
2x - 7 = 0 or x - 1 = 0
x = 3.5, 1,
When x = 1, y = 1 - 2 = -1.
When x = 3.5, y = 3.5 - 1 = 1.5.
Suppose the first odd integer is x, the next one will be x+2, the third one will be x+4
add up these three integers, you will have 3x+6=39
3x=33
x=11
the three consecutive odd integers are 11,13,15
Answer:
This is a Retrospective study
Step-by-step explanation:
Retrospective study is a study that compares two groups of people; those with disease or condition under study and a very similar group of people who do not have the disease or condition.
Here they are compring those men with high blood pressure who drank and those with no high blood pressure and don't drink.
The slope is 1, so put either “x” or “1” and the y-intercept is at the origin so it’s 0, so put “(0,0)”
Answer:
1) 128
2) 32
Step-by-step explanation:
1) 8C1×4C1×4C1 = 128
2) 5C1 + 5C2 + 5C3 + 5C4 + 5C5
= 32
