Use △XYZ, in which ∠X is a right angle and tanY=815. What is the ratio for sinY? Enter your answer as a fraction in simplest form, like this: 4/25

9999992472/10000000000.

Step-by-step explanation:

If tanY= 815 (which I doubt, shouldn't be so much), XZ= 815 units and XY= 1 units. To find hypotenuse, YZ= √{(815^2) + (1^2)}. Which gives YZ= 815.0006135. So, SinY= opposite by hypotenuse= 815/815.0006135. The answer is wicked, right? I suppose TanY shouldn't be 815 as you stated.

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer

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step-by-step explanation: