# Mathematics

19Nov

### A catapult launches a boulder with an upward velocity of 112 ft/s. The height of the boulder, h, in feet after t seconds is given by the function h= -16t^2 + 112t + 30 . How long does it take the boulder to reach its maximum height? What is the boulder’s maximum height? Round to the nearest hundredth, if necessary. A. 7 s; 30 ft B. 3.5 s; 366 ft C. 3.5 s; 618 ft D. 3.5 s; 226 ft

lexii17
Mathematics
1 5

19Nov

### currently 96 members participate in the morning workout and this # has been increasing by 2 ppl per week. currently 80 ppl participate in the afternoon workout and this # has been increasing by 3 ppl per week. in how many week will the # of ppl working out in the morning be double the # of ppl working out in the afternoon?

Murrij
Mathematics
1 0

19Nov

### I have some questions regarding combinations in finite. Here is my first one I am stumped on: Select 3 coins, but assume that there are 5 dimes, 3 nickels, and 2 quarters. In How many possible ways can the selection be made so that the value of the coins is AT LEAST 25 cents?_______________________________ Any help? Formulas have not done me so well

Cheychey102
Mathematics
1 0

19Nov

### write 0.48 as a fraction in simplest form

RosemaryTravelste747
Mathematics
2 0

19Nov

### prove that AUB=A & intersection of A&B=A then A=B

HannahCarney
Mathematics
1 0

19Nov

19Nov

### if z=4.0 and y=5.6 what is value of x

linhpy2002
Mathematics
1 0

19Nov

### how many solutions does 3y 5-2y=11 have

Genius26
Mathematics
1 0

19Nov

### if 1 ÷a=1/b 1/c 1/d find c when a=2,b=3,d=5

killerzebra123
Mathematics
1 0

19Nov

19Nov

### is 5/12 greater than 1/4

angelstanya3
Mathematics
1 0

19Nov

### 7=10c-3 helpppppppppp

Deanajordan60
Mathematics
1 0

19Nov

### match the range of the function f(x) = x2 2x − 1 to its domain.

Sophiesharpe123
Mathematics
1 1