8. The sum of twice an unknown, x, times itself added to seven times that unknown is - 3. Which

of the following could be the value of the unknown x?

(A) - 2

(B) 2

(C) - 3

(D) 3 (E)

In the formula I=P. r. t, what does r stand for? a. Rate: the percent that interest is paid annually as a decimal b. Ratio: the size of the interest interval compared to time C. Return: how much money you end up earning d.

Function f (x) is positive, increasing and concave up on the closed interval [a, b]. The interval [a, b] is partitioned into 4 equal intervals and these are used to compute the upper sum, lower sum, and trapezoidal rule approximations for the value

What is the verbal phrase of 3a + 4b?

What type of polygon is shown? convex heptagon concave heptagon concave octagon convex octagon

For Carolina's birthday her mom took her and her for friends to the water park Carolina's mom paid $40 for 5 student tickets. what was the price for one student ticket?

True or false: arc measure is the same length as arc length

What is something times 4 equal 40

Mac is 5 feet tall and casts a 4 foot 6 inch shadow. At the same time, a nearby tree casts a 20 foot shadow.

Jessica is reading a book. She is able to read about 5 chapters each day. Assuming that, on average, each chapter contains 13.87 pages, which is a good estimate of the number of pages Jessica can read in 4 days?

70,000,000write the number in the form standard