In the following questions, simplify the given formulae:

2. sin50°cos 40° - cos50°sin 40°

3. cos75°cos 15° - sin75°sin 15°

You need £2,500 as a deposit for a new car. You have already saved 50% of this amount. Which calculation could you use to check how much you still need to save? Select your answer. 1/4 of £2,500 3/4 of £2,500 1/2 of £2,500

Simplify the ratio 68/102

A professor wished to study whether the percentage of Americans that graduate from college has increased. Ten years, ago, 25% of Americans graduated from college. This year, a random sample had a college graduation rate of 28%.

Jazmin is training for an upcoming race at the track. On Monday, she ran 8 laps around the track, which equals 2. On Wednesday she ran 20 laps at the track. How many miles did Jazmine run on Wednesday?

Alice has eight stars gets a new one each week Mack has two and gets two each week How many weeks tell the both have the same amount of stars

Complete this sentence in a triangle the angle with the greatest measure is always opposite the

Given cosθ=1/3, find sin (90-θ)

What is 17 over 31 in simplest form

Write and solve a real-world word problem in which there are 3 pancakes for every person

Solve the following problems 2 foot 5 in + 9 in