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°

the answer is 62.8 cubic units

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.