What is the value of b? you may assume that the ray is tangent to the circle. a) 126 b)63 c)54 d)94

Option B 63°

Step-by-step explanation:

we know that

If the ray is tangent to the circle

then

a°+b°=90° > by complementary angles

Remember that

The inscribed angle measures half that of the arc comprising

so

Find the measure of inscribe angle a

∠a=(1/2)[54°]=27°

Find the measure of angle b

a°+b°=90°

substitute

27°+b°=90°

b°=90°-27°=63°

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

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step-by-step explanation: