In a triangle, the measure of the first angle is five times the measure of the second angle. The measure of the third angle is 40 less than five times the measure of the second angle. What is the measure, in degrees, of each angle?

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the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a