Prove that the equation is an identity. tan A tan B = tan A + tan B cot A + cot B Working from the right-hand side, use the trigonometric identities for tangent and cotangent. RHS = tan A + tan B cot A + cot B

An electrician charges a flat fee plus an hourly rate for a service call. She charges a total of $94 for a 3-hour service call on Monday and $130 for a 5-hour service call on Tuesday. How much should she charge for a 2-hour service call?

Randy had grades of 85, 92, 96, and 89 on his last four math tests. What grade does he need on his next test to have an average of 92?

A square has a perimeter of 38 inches do you want to know the length of each side choose the best model for this problem

Liza has 1 liter of orange juice. She and her friend Jenny drink 950 milliliters of juice. 1 liter = 1,000 milliliters. Which equation can you use to find the amount of juice they both drank in liters?

How many grams are in 256 mg

During the summer you work 30 hours per week at a gas station and earn $8.75 per hour. You also work as many hours as you want. You want to earn a total of $400 per week. How many hours must you work as a landscaper?

Morgan has an investment worth $30,000 dollars invested at 5% simple interest. If no withdrawals or deposits were made, what is the balance after 20 years? O $50,000 O $45.000 $60,000 O $80,000

How much force is needed to accelerate a 2,500 kg car at a rate of 4 m/s

20:2 (5+5) = what is the answer and breakdown?

The graph below shows interest charges accrued on 4 different credit cards. Based on the graph, which credit card appears to have an introductory apr? A. Card 2 B. Card 1 C. Card 3 D. Card 4