Actually, the answer is not A, if you're saying A is the first choice above. That's incorrect. You will need to use the Geometric mean for right triangles here to figure out what the value of a is. We will use this form: 
. We have a value for YZ of 3; side a is XZ. That means in order to solve this we need WZ, which we can find using pythagorean's theorem. 3^2 + 4^2 = c^2 and 9 + 16 = c^2 and c = 5. Now we fill in accordingly: 
. Cross-multiply to get 3XZ=25 and side XZ is 
. XZ is 25/3 and YZ is 3, so 25/3 - 3 = XY. That means that XY (side a) = 16/3 or 5 1/3, choice B, or the second one down.
The gross income of maurice is 785 per week. His deductions are 42.25 FICA tax, 90.33 income tax, 2% state tax 1% city tax, and
1 answer:
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Answer: 0.78
Step-by-step explanation:
Given : P(bridge and swim) = 0.67
P(bridge)= 0.86
Formula for conditional probability :
So,
Hence, the probability that the member swims, given that the member plays bridge = 0.78
Draw some lines and we get some special 30-60-90 triangless
se diagram
so using my math
remember that if the hyptonuse is 2x then angle oposite the 30 degree is x and angle oposit the 60 degree is x√3
so
we have a kite and know the lengths of he diagonals
we do
(9+3) times (3√3) to find the area total which is 36√3
then, we find teh area of the sector not shaded
the area of the sector is (120/360) times the area which is pi6^2
so
1/3 times 36pi or 12pi
so
36√3-12pi≈24.6547 square units
se diagram
so using my math
remember that if the hyptonuse is 2x then angle oposite the 30 degree is x and angle oposit the 60 degree is x√3
so
we have a kite and know the lengths of he diagonals
we do
(9+3) times (3√3) to find the area total which is 36√3
then, we find teh area of the sector not shaded
the area of the sector is (120/360) times the area which is pi6^2
so
1/3 times 36pi or 12pi
so
36√3-12pi≈24.6547 square units