A bag contained 120 marbles some are red and the rest are black there are 19 red marbles for every black marble. How many red marbles are in the bag

Several students tested plant growth for given conditions. Which student's data is most representative of average plant growth for the tested conditions?

Derive the equation of the parabola with a focus at (2, - 1) and a directrix of y = - one half. f (x) = - (x + 2) 2 - three fourths f (x) = (x + 2) 2 + three fourths f (x) = - (x - 2) 2 + three fourths f (x) = - (x - 2) 2 - three fourths

Simplify. In e = In e 2x= In 1 =

Name a ratio that is equivalent to the ratio: 4/5

The temperature T in degrees Fahrenheit is (approximately) a linear function of the number C of cricket chirps per minute. Twenty cricket chirps per minute corresponds to a temperature of 42 degrees Fahrenheit.

The lengths of the sides of a triangle are 4, 5, 6. Can the triangle be a right triangle?

Name a big reason Europeans came to the "New World" during the fifteenth and sixteenth centuries?

Find the value of x 2x+4x=5

UT bisects WV. WV = ? A. SV B. 2 (SV) C. UT D. none of the above

Evaluate 2/3 - 1/6. a. 1/6 b. 1/2 c. 5/6 d. 1