exam Maths Puzzle Numerical Ability

If you were given a right triangle ABC with side b = 20, and angle A = 65degrees
can you solve the triangle
a =
c =
angle C =
angle B =

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exam Other Question

Could I get your assistance in solving the three function problems below:

1)y = sqrt x-1
1b) is this a function or not?

2)y = 2x-3 A train travels 180 miles in the same time that a car travels 120 miles. The speed of the train is 20 miles per hour faster than the speed of the car. Find the speed of the train and the speed of the car. Please solve step by step.