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
Doss [256]
4 years ago
6

An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's height s at

time t seconds after launch is s(t) = –4.9t^2 + 19.6t + 58.8, where s is in meters. When does the object strike the ground?
Mathematics
1 answer:
Elina [12.6K]4 years ago
4 0
So the question sets the problem with a bunch of different values given but it goes ahead does the work of putting them into an equation, since this equation they made gives us the position, when it is equal to zero the object has impacted the ground. Setting it to zero allows us to solve for t, the time at which it strikes the ground.


0 = -4.9t^2 + 19.6t + 58.8, because this is a quadratic, and a complicated one at that, we will use either a calculator, or the quadratic formula to solve for t.

No matter what way you solve it you will get two values, only the positive value applies because a negative value for time is illogical.

The answer is at t = 6 seconds
You might be interested in
Brand X costs $2.70 for 10 ounces. Brand Y costs 4 cents more per ounces. What is the cost of 11 ounces of brand Y?
Ksju [112]
Well you have to first find the constant of Brand X which would be 2.70/10 = .27. Brand Y is .4 more so that would be .31 per ounce. So then .31 x 11 = 3.41. The cost of 11 ounces of brand Y is $3.41.
8 0
3 years ago
Colton is going to invest in an account paying in interest rate of 6.3% compounded continuously how much wood coating need to in
fredd [130]

Answer:

8284

Step-by-step explanation: I had the same question

5 0
3 years ago
From which source can investors access accurate information about the market prices and movement of stocks?
Nadusha1986 [10]
A, financial newspapers.
8 0
3 years ago
Read 2 more answers
NEED ANSWER ASAP
kkurt [141]

Answer:

f(2) = 81

g(2) = 83

Science class had a higher average

Step-by-step explanation:

Given

f(x) = 0.5x + 80

g(x) table

Solving (a): f(2)

We have:

f(x) = 0.5x + 80

So:

f(2) = 0.5*2 + 80

f(2) = 1 + 80

f(2) = 81

Solving (b): g(2)

From the given table.

g(2) = 83

Solving (c): f(4) or g(4); which is greater

f(x) = 0.5x + 80

So:

f(4) = 0.5*4+80

f(4) = 2+80

f(4) = 82

For g(4): Notice that in the table of g(x); g(x) increases by 2 when x increases by 1

This means that:

g(x) = g(x-1)+2

So

g(4) = g(4-1)+2:

g(4) = g(3)+2

g(4) = 85+2

g(4) = 87

<em>Hence, g(4) i.e. Science class is greater</em>

6 0
3 years ago
How much interest will she earn in 3 years?
alekssr [168]
For this, the equation is 
90× 1.13³=y
X was replaced with y. Since she is gaining, you have to remember she is going to have 100 percent of what he had before, she will not lose any.
90× 1.13= 129.86
Now, we need to find the amount of interest she gained, so we have to subtract 90 from the total.
129.86-90=39.86
We can also find the answer by completing a small chart.
The first column will be the year. The second will be the amount. The third will be the interest for the year.
1                                                90                                                11.7
2                                                101.7                                           13.22
3                                                 114.92                                        14.94
The total would round to 39.86, so her interest for the 3 year would be 39.86, with her having 129.86 altogether.




7 0
4 years ago
Read 2 more answers
Other questions:
  • 5) Answer the following questions :
    13·2 answers
  • Change 17/25 to thousandths ....... need help with that problem
    13·1 answer
  • Factor 8y^2+17+2. Please
    5·2 answers
  • Will the researcher reject the null​ hypothesis? A. Do not rejectDo not reject the null hypothesis because muμequals=35.135.1 mi
    13·1 answer
  • Need help asp! the graphs below have the same shape. what is the equation of the red graph?
    6·1 answer
  • What does x equal? no step by step required.
    11·2 answers
  • Which of the following set of ordered pair is a function? A {(9,0), (9, 1), (9,2), (9,3)} B [(-1,0), (-2, 0), (2,0), (1,0)} C {(
    11·1 answer
  • What is the value of m in the equation one-half m minus three-fourths n equals 16, when n equals 8?
    15·1 answer
  • Will I get the actual answers?
    14·2 answers
  • In the triangle below, what is the approximate value of x?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!