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
beks73 [17]
3 years ago
12

The table shows the height of an object, h(t), in meters after t seconds. Use your calculator to find the quadratic function. Fi

nd the approximate time, to the nearest hundredth of a second, after which the object will reach its maximum height.

Mathematics
1 answer:
padilas [110]3 years ago
7 0
My calculator models the function as
.. h(t) = -4.9t^2 +23.4t +120

The maximum height is reached at t=-23.4/(2(-4.9)) ≈ 2.39 seconds.

You might be interested in
Colin rides his bike 10 and a half miles every morning and 12 and 1/4 miles every afternoon on Monday he wrote his usual distanc
jeka94
12 1/4- 1 1/2 >>> Convert fractions to decimals:
12.25- 1.5 = 10.75 >>> Convert decimals back to fractions:
10 3/4 >>> Add miles from the morning:  10 + 10 3/4 = 20 3/4 miles
3 0
3 years ago
-(y + 2) + 8 = 3<br> I’m so confused on this, please send help
Hoochie [10]

Don't be worried friend :)

-(y + 2) + 8 = 3

=> -(y + 2) = -5

=> y + 2 = 5

=> y = 3

7 0
3 years ago
HELP it needs good reasoning
Sidana [21]

Answer:

Company B.

Step-by-step explanation:

On the graph, when x is 1, y is 50. That means it is $50 for one window. On the chart, when there is 1 window, the cost is $55. So, company B is more expensive!

5 0
3 years ago
Can someone please help me out? It would really make me happier if you did.
asambeis [7]

Answer:

B) 8 and 24.

Step-by-step explanation:

Just by looking at the answer choices, since one number must be three times the other, we can determine that the correct answer is B.

Regardless, let's work this out mathematically. Let the first number be <em>a</em> and the second number be <em>b</em>.

Their difference is 16. Hence:

a-b=16

The first number is three times the second number. So:

a=3b

Substitute:

3b-b=16

Solve for <em>b</em>. Subtract:

2b=16

And divide both sides by two:

b=8

So, the second number is 8.

And since the first number is three times the second, the first number is 24.

Our answer is B as expected.

5 0
3 years ago
-3x-2y=-1<br> 4x+6y=12<br><br> what’s all the steps and answer to this equation
abruzzese [7]

Answer:

x = -9/5

y = 16/5

Step-by-step explanation:

-3x-2y=-1            first you need to multiply the numerator by 3 so when adding

4x+6y=12           the y's cancel and you get a single variable

3(-3x-2y=-1)     —>  -9x - 6y = -3     then you add the like terms

 4x+6y=12      —>   4x + 6y = 12

(-9x+4x) + (6y - 6y) = (-3 + 12)

-5x = 9  then you divide by -5

x = -9/5

then you plug this in to either equation

4(-9/5) + 6y = 12

-36/5 + 6y = 12   then you add 36/5 to both sides

6y = 96/5  then you divide by 6

y = 16/5

6 0
4 years ago
Other questions:
  • A cylinder is filled with pure nitrogen dioxide. which term or terms could be used to describe the contents of this cylinder?
    12·1 answer
  • Can -5 be the base of an exponential function?
    11·1 answer
  • Can someone help answer this question Ive tried a lot and couldnt do it.
    14·1 answer
  • Arrange the equations in the correct sequence to rewrite the formula for displacement, d = vt—1/2at^2 to find a. In the formula,
    14·1 answer
  • (x^2+y)(x^4y^3)/xy^2
    8·1 answer
  • Need to find the answer to 10 times (-2 ) -8
    7·2 answers
  • Katelyn did a survey of 200 randomly selected gym members, and found that 72 of them are interested in yoga classes. The gym has
    13·1 answer
  • Multiplication is a faster way to do repeated
    6·2 answers
  • Deena deposited $48 in a new bank account. After buying groceries, she had $19 left in the account. Then she paid her cell phone
    5·1 answer
  • A rectangular shelf has an area of 40 square inches. Its perimeter is 28 inches. What are the dimensions of the shelf?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!