1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
leva [86]
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.
Mathematics
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
Frank cut a 52 inch string into 3 pieces. The first piece is 20 inches long. The second piece is at least 12 inches long, but no
Eddi Din [679]
We need to figure out how much string would be left, after taking away the first two pieces.
We know that the first piece is 20 inches long, so we can say that there is 52-20 inches left, or 32 inches.

The second piece is between 12 and 18 inches, meaning that there would be between 32-12 and 32-18 inches left for the third piece, or 20 and 14 inches. This means that the third piece would be at least 14 inches long, but no more than 20, since we don’t have more string than that (20+12+20=52, and 20+14+18=52)

So we can say that x is greater or equal to 14, but less than or equal to 20, or:

14<=x<=20 (“<=“ is written like a normal “<“ sign with a line _ right under it)
4 0
3 years ago
Which equation is the inverse of y = 2x2 - 8?
kirill [66]

Answer:

y =  \sqrt{ \frac{x + 8}{2} }

3 0
3 years ago
What is the mean of 65.9, 80.8, 60.8, 46.5, and 64.3
vladimir2022 [97]

Answer:

63.66

Step-by-step explanation:

Mean=(65.9+80.8+60.8+46.5+64.3)/5

Mean=63.66

7 0
3 years ago
Write an equation of the line that passes through (18,2) and is parallel to the line 3y-x=-12 .
uysha [10]

Answer:

y = \frac{1}{3}x-4

Step-by-step explanation:

<u>Step 1:  Solve for y in the first equation</u>

3y - x = -12

3y - x + x = -12 + x

\frac{3y}{3} = \frac{x}{3} - \frac{12}{3}

y = \frac{1}{3}x - 4

<u>Step 2:  Determine the important aspects</u>

We know that our line is parallel to the other line that has a slope of 1/3 which means that our slope is also going to be 1/3.  We also know that our line crosses the point (18, 2) which means that we can use the point slope form to determine our equation

Point Slope Form → (y-y_1) = m(x - x_1)

<u>Step 3:  Plug in the information and solve</u>

(y-2) = \frac{1}{3}(x - 18)

y - 2 = \frac{1}{3}x - 6

y - 2 + 2 = \frac{1}{3}x - 6 + 2

y = \frac{1}{3}x-4

Answer: y = \frac{1}{3}x-4

7 0
2 years ago
Combine like terms 7y-14y+3=
MaRussiya [10]

-7y+3 is the answer that you are looking for

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the length of the missing side of the triangle? 24,66 29.15 26.5 30.6
    6·1 answer
  • What is the square number for 2
    7·1 answer
  • To decrease an amount by 7% what singular multiplier would you use
    11·1 answer
  • In an over-fished area, the catch of a certain fish is decreasing exponentially.? Use k=0.084 to determine how long will it take
    15·1 answer
  • The five patterns are: circle, plus sign, wavy lines, empty box, and star. One hundred trials were conducted, and your very impr
    13·1 answer
  • 15 POINTS
    6·1 answer
  • Which correctly describes a cross section of the cube below? Check all that apply.
    15·1 answer
  • 2(3x + 2) = 2x - 1+x.
    7·2 answers
  • Please helped me<br><br>Please I need help ^_^:-{^_^:-{^_^:-{^_^:-{^_^:-{^_^​
    7·2 answers
  • Expand and simpifly 2(x+7) + 3(x+1)
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!