Ask question

Ask question

All categories

3 years ago

13

A baseball is dropped from a stadium seat that is 73 feet above the ground. Its height s in feet after t seconds is given by s(t

)=73−16t^2. Estimate how long it takes for the baseball to strike the ground.

1 answer:

lisov135 [29]3 years ago

8 0

0 = 73 - 16t^2
16t^2 = 73
4^2*t^2 = 73
(4t)^2 = 73
<span>sqrt(4t^2) = sqrt(73) </span>
4t = 8.5440
<span>t = 2.136</span>
ANSWER: 2.1 seconds

You might be interested in

Stephanie had 22 marbles. she gave maggie and sam each 4 marbles. explain how you can find how many marbles stephanie has left?

Lina20 [59]

She had 22 marbles and gave away, 4 to two people, so 4*2 = 8. 22-8=14. she has 14 marbles left.

4 0

3 years ago

Calculate the Rate of Return on an initial investment of $6,000 valued at $6,500.

bezimeni [28]

Answer:

8.3%

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Simplify (-3x^2)^2 show work

Feliz [49]

Answer: 9x^4

Using the rules of exponents multiply the -3 times the -3 which equals 9 canceling out the negatives. Then you have that other ^2 but you also had the other one so you still have to keep it which equals that ^4.

6 0

3 years ago

What is the solution to the equation? Need help with both 3 and 4

In-s [12.5K]

3. -1
4. 19/4
hope i helped!

4 0

3 years ago

Read 2 more answers

A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.53, 0.40

SpyIntel [72]

The mean of the probability distribution is given by the expected value given by

$E(x)=\sum xp(x) \\ \\ =0(0.53)+1(0.40)+2(0.05)+3(0.02) \\ \\ =0.40+0.10+0.06=0.56$

The variance of the probability distribution is given by

$Var(x)=(x-\bar{x})^2p(x) \\ \\ =(0-0.56)^2(0.53)+(1-0.56)^2(0.40)+(2-0.56)^2(0.05)\\+(3-0.56)^2(0.02) \\ \\ =(-0.56)^2(0.53)+0.44^2(0.40)+1.44^2(0.05)+2.44^2(0.02) \\ \\ =0.3136(0.53)+0.1936(0.40)+2.0736(0.05)+5.9536(0.02) \\ \\ =0.166208+0.07744+0.10368+0.119072=0.4664$

The standard deviation is given by

$\sigma(x)=\sqrt{Var(x)} \\ \\ =\sqrt{0.4664}=0.683$

5 0

3 years ago