Which equation could be used to solve problems involving the relationships between the angles?

A. 90 + (8a + 9) = (11 + 2a)

B. 90 - (8a + 9) = (11 + 2a)

C. (11 + 2a) - 90 = (8a + 9)

D. (8a + 9) - (11 + 2a) = 90

2 (2a + 2b) + 3 (1 - b - a) - a - b - 2 simplify the expression._.

The Hypotenuse-Leg postulate can only be applied to right triangles. true or false

If candy bars are sold for $1 each, and 50 cents of each bar goes for charity, how many bars will need to be sold in order to raise $7.00 for charity?

If x>2; then x2 - x - 6 / x2 - 4

How can you predict the sign of the sum answer before you actually do the math

If g (4) = 16, g (5) = 18, g (6) = 20, then g (3) = ?

A rectangle has length (4x+ 5) and breadth 3x. Find the area of the rectangle.

A pattern has 1,000 identical circles. If 665 of the circles are orange, what decimal represents the part of the pattern that is orange? Why? A. 665 B. 66.5 C. 6.65 D. 0.665

3.) What is h (5) ? What does this mean?

I was wondering how to find these things about the Singapore flyer (ferries wheel) ? The measure of the central angle in degrees, the measure of the central angle in radian, the arc length between two cars, and the area of a sector between two cars?