A firecracker shoots up from a hill 140 feet high with an initial speed of 100 feet per second. Using the formula H (t) = - 16t2 + vt + s, approximately how long will it take the firecracker to hit the ground?

5 seconds

7 seconds

9 seconds

11 seconds

How regroup 60 hundreds as thousands?

Two 2 1/2 inch plastic strips and two 5 1/3 inch plastic strips are used to form a rectangle. What is the perimeter of the rectangle?

Last month Sarah Ryan and Taylor received a total of 882 emails if Sarah receive 25% more emails than the sum of the numbers of emails received by Ryan and Taylor how many emails and Sarah receiveLast month Sarah Ryan and Taylor received a total of

Solve the following inequality. 2x + 2 (x+5) <+4 (8 - 20)

Describe a mathematical idea or philosophy that came out of the Vitruvian Man.

The distance from city A to city B is 3 times father than the distance between city B and city C. The total distance from city A to city B to city C is 50 miles. How far is it from city A to city B?

Which statements describe the function f (x) = 2x+24/x^2+4x-96? Check all that apply. f (x) has a vertical asymptote at x = 8. f (x) has a vertical asymptote at x = 12. f (x) has a hole at x = - 12. f (x) has a horizontal asymptote at y = 0.

Which estimate of 7/10*16 uses a benchmark fractions? A. 1 x 16 = 16 B. 7/10 x 20 = 14 C. 3/4 x 16 = 12 D. 7/10 x 10 7

Which number is a rational number? √25 √32 √50 √63

Need hep. solve 6x-1=5