The half-life of a radioactive substance is 275 days. How many days will it take for 70% of the substance to decay?

Factor completely. 5x2 - 46x + 9

F (x) + 2x^2-4x-3 g (x) = 2x^2-16 find f (x) + g (x)

An acute angle is in a right triangle with cos 9/10. What is the value of sec?

864,000,000,000 8,640,000,000 86,400,000,000,000 864,000,000,000,000 Pairs 8.64E9 8.64E14 8.64E11 8.64E13

The formula for determining how long a hike will take is t=12 (d+h), where d is the distance in miles and h is the elevation gain in thousands of feet. Solve for h.

What is a solid figure that has three pairs of parallel faces and all faces are congruent

One third of a number

A serving size for pineapple-orange punch is 1/2 cup. Liam needs to make 72 servings of punch. He will use 8 pints of pineapple juice. The rest is orange juice. How many pints of orange juice does he need to make the punch?

Which is a variable expression for the word phrase? the product of 3 and a number decreased by 7 a. 3n + 7 b. 7 - 3n c. 3n - 7 d. 7n - 3

Find the value of x and then classify the triangles by it's angles