The half-life of uranium-235 is 700 million years. If you start with 50 atoms of it, how many will you have left after 700 million years?

A. 50

B. 100

C. 25

D. 45

two angles of a triangle measure 27 degrees and 17 degrees what is the measure of the third angle? A) 146 degrees B) 136 degrees C) 46 degrees D) 44 degrees

A candymaker makes 500 pounds of candy per week, while his large family eats the candy at a rate equal to Q (t) / 10 pounds per week, where Q (t) is the amount of candy present at time t.

Trina and Jessie went on a vacation to Hawaii. Trina went scuba diving and reached an elevation of - 85.6 meters, which is below sea level. Jessie went hang gliding and reached the altitude of 87.9 meters which is above sea level. A.

Trying to solve equation 9x=3x+11.

Medal will be given to the best answer. Which of the following is a solution to the equation y = 3x - 1? A. (4,1) B. (2,5) C. (4,3) D. (0, - 3)

the mean heights of people from mexico is 67 inches and the mean heights of people from honduras is 69 inches in which country are the people taller on average

Determine if the given set is a subspace of set of prime numbers P 3. Justify your answer. The set of all polynomials of the form p (t) equalsat cubed , where a is in set of real numbers R.

The height of a right triangle is 3 times the length of the base. If the area of the triangle is 54 cm^2 what is the height in centimeters

6*9/4 A street light is at the top of a 20 foot tall pole. A 6 foot tall woman walks away from the pole with a speed of 7 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 45 feet from the base of the pole?

Robert can run 1/2 of a mile in 1/15 of an hour. How many miles can Robert run in an Hour?