Which is the quadratic variation equation for the relationship?

y varies directly with x²and y = 72 when x = 6.

a) y=12x

b) y=4x²

c) y=x²+25

d) y=2x²

A family travels, by plane, five hundred miles from their city to a beach town. Then they take a taxi from the airport to the hotel at the beach. When they ask the driver how far the airport is from the hotel, he tells them twenty kilometers.

What is the least common denominator of 3/4, 4/5, 2/3? A. 60 B. 15 C. 12 D. 20

35% of what number is 84?

What is the amount saved on a coat that was regularly $199.00 and is now on sale for $149.99?

6 is a multiple of 42?

Carla purchases 4 books for $10. Amy purchased 9 books. How much did Amy spend if her books cost the same as Karla's?

Which expression is a factor of the quadratic 6x^2-11x-35? 2x-7, 2x-5, 2x+7, 2x+5

How to find the perimeter of a shape

A particular group of men have heights with a mean of 181 cm and a standard deviation of 6 cm. Earl had a height of 196 cm. a. What is the positive difference between Earl 's height and the mean? b.

What is 19.2 x 10^8 minutes in hours