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
MariettaO [177]
3 years ago
13

You throw a ball at a height of 5 feet above the ground. The height h (in feet) of the ball after t seconds can be modeled by th

e equation, h=(-16t)^2 + 44 + 5.
The question is:
After how many seconds does the ball reach a height of 15 feet?
WILL GIVE BRAINLIEST IF ANSWERED CORRECTLY
Mathematics
1 answer:
marusya05 [52]3 years ago
3 0

Answer:?

Step-by-step explanation:

You might be interested in
Why does a rectangle with different side lengths have only 2 lines of symmetry?
ICE Princess25 [194]

Answer:

C. all four angles are congruent, and opposite sides are congruent for a horizontal and vertical line of reflection

Step-by-step explanation:

A. isn't correct because all four sides aren't congruent, only the pair of opposite sides are congruent. Sense only opposite side are congruent you can only reflect the opposite sides onto each other and not diagonally meaning B. and D. are incorrect leaving C. all four angles are congruent, and opposite sides are congruent for a horizontal and vertical line of reflection as the correct answer

5 0
2 years ago
$3.98 divided by 100
mote1985 [20]
0.0398 is the answer !
7 0
3 years ago
Read 2 more answers
What is needed to prove the triangles are congruent?
Stells [14]

Answer:

l ×b length ×breadth or h×b height ×breadth only this much or if you have other formula plz send me plz and what your name

4 0
2 years ago
Read 2 more answers
The paragraph below comes from the rental agreement Susan signed when she opened her account at Super Video.
BARSIC [14]

Answer:

option B

Step-by-step explanation:

Given:

per day late costs= 1.50

Purchase price= 9.99

A round trip cab ride to the video store will cost = 10

5 day late cost= 5(1.50)

                       = 7.50

Payment after 5 day late= 5 day late cost + Purchase price

                                       = 7.50 + 9.99

                                       = 17.49

If she gets a cab, then total payment= 10 + 7.50

                                                             = 17.50

Hence both costs almost the same, option B is true

b.

It would cost about the same to keep or return the movie. Susan should keep it!

3 0
3 years ago
Prove the following by induction. In each case, n is apositive integer.<br> 2^n ≤ 2^n+1 - 2^n-1 -1.
frutty [35]
<h2>Answer with explanation:</h2>

We are asked to prove by the method of mathematical induction that:

2^n\leq 2^{n+1}-2^{n-1}-1

where n is a positive integer.

  • Let us take n=1

then we have:

2^1\leq 2^{1+1}-2^{1-1}-1\\\\i.e.\\\\2\leq 2^2-2^{0}-1\\\\i.e.\\2\leq 4-1-1\\\\i.e.\\\\2\leq 4-2\\\\i.e.\\\\2\leq 2

Hence, the result is true for n=1.

  • Let us assume that the result is true for n=k

i.e.

2^k\leq 2^{k+1}-2^{k-1}-1

  • Now, we have to prove the result for n=k+1

i.e.

<u>To prove:</u>  2^{k+1}\leq 2^{(k+1)+1}-2^{(k+1)-1}-1

Let us take n=k+1

Hence, we have:

2^{k+1}=2^k\cdot 2\\\\i.e.\\\\2^{k+1}\leq 2\cdot (2^{k+1}-2^{k-1}-1)

( Since, the result was true for n=k )

Hence, we have:

2^{k+1}\leq 2^{k+1}\cdot 2-2^{k-1}\cdot 2-2\cdot 1\\\\i.e.\\\\2^{k+1}\leq 2^{(k+1)+1}-2^{k-1+1}-2\\\\i.e.\\\\2^{k+1}\leq 2^{(k+1)+1}-2^{(k+1)-1}-2

Also, we know that:

-2

(

Since, for n=k+1 being a positive integer we have:

2^{(k+1)+1}-2^{(k+1)-1}>0  )

Hence, we have finally,

2^{k+1}\leq 2^{(k+1)+1}-2^{(k+1)-1}-1

Hence, the result holds true for n=k+1

Hence, we may infer that the result is true for all n belonging to positive integer.

i.e.

2^n\leq 2^{n+1}-2^{n-1}-1  where n is a positive integer.

6 0
3 years ago
Other questions:
  • Solve the differential equation dy dx equals the quotient of x squared and y squared for y = f(x) with the initial condition y(0
    10·1 answer
  • Can someone plz help me?
    7·2 answers
  • Type the correct answer in the box.
    15·2 answers
  • Anna biked 37km this morning and another x km in the evening. How many kilometers did Anna bike today? Write your answer as an e
    6·2 answers
  • Find the difference.
    5·2 answers
  • Write the equation for the line that has a slope of -4 and passes through the point (-2, 2)
    13·2 answers
  • Plzz help. Giving everything.<br> D. 24.5
    8·1 answer
  • Please help
    6·1 answer
  • 2015-{2015÷5(x-5)÷5}=2014​
    14·1 answer
  • SOMEONE PLEASE HELP ME
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!