For what numbers x, 0 ≤ x ≤ 2π, does cos x = -1?

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm^2. what is the area of the second triangle?

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5