<span>If you are given the banned PED's with a sensitivity of 88% and a specificity of 94% and then a study suggests that approximately 25% of baseball players use PED's. The answers would be:
A) Of those who tested positive, there are 44 percent who were falsely accused.
B) Of those who tested negative, there are 55 percent who actually use PED's</span>
Answer is b
there are 2 cases
1: if x is less than -5/3
then you have -3x-5=5x+2
solve and get x=-7/8 which is invalid
2: if x is more than -5/3
then you have 3x+5=5x+2
solve and get x=3/2 which is valid
so b is the answee
1. "<span>1/4 of W as an algebraic term" comes out to (1/4)W or W/4. Your choice!
2. "3 times less than D" could be represented by D/3. Unusual language!
3. "1/3 of D" is definitely (1/3)D or D/3. Your choice.
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For the equation,
y = 1/2(x+3)^2 -5
The vertice is (-3,-5). Therefore the axis of symmetry is X = -3.