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
V125BC [204]
3 years ago
9

If an object is dropped from a height of 55 feet, the function d = -16^2 + 55 gives the height of the object after t seconds. Gr

aph this function. Approximately how long does it take the object to reach the ground (d=0)

Mathematics
2 answers:
crimeas [40]3 years ago
7 0

Answer:

t is approximately 1.854049622 seconds

Step-by-step explanation:

d = -16 t^2 + 55

Let d = 0

0 = -16 t^2 + 55

Subtract 55 from each side

-55 = -16 t^2

Divide by -16 on each side

-55/-16 =  -16 /-16t^2

55/16 = t^2

Take the square root of each side

sqrt(55/16) = sqrt(t^2)

We only take the positive square root because time must be positive

sqrt(55/16) = t

t is approximately 1.854049622 seconds

motikmotik3 years ago
4 0

Answer:

Approximately  1.9 seconds   (correct to nearest tenth)

Step-by-step explanation:

Looks like the function is  d = -16t^2 + 55    ( you left out the t)

The answer is the value of t when d = 0 so we have the equation:-

0 =  -16t^2 + 55

16t^2 = 55

t^2 = 55/16

t = sqrt (55/16)

= 1.85 seconds

You might be interested in
Find the nth term 4,9,14,19<br> WHOEVER ANSWERS FIST CORRECTLY WILL GET GIVEN BRAINEST
irina1246 [14]

Answer:

4,9,14,19

a=4

d=9-4=5

a^n=a+(9-1)d

=4+(9-1)5

=4+5n-5

=5n-1

Step-by-step explanation:

Thanks!!!!

8 0
2 years ago
Given the diagram below, what statement can you not make?
Vaselesa [24]

Answer:

b, 5=3

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Which angle is congruent to CBA?<br> BCD<br> CDA<br> ABC<br> BAD
Angelina_Jolie [31]

Answer:

the second cda is right give brainliest pls

Step-by-step explanation:

7 0
2 years ago
Determine the value of y in the proportion 6y−10/5+7y =12 .
ira [324]

its none of them? 6y - 10/5 +7y = 12     10 divided by 5 equals 2

it will now look like this: 6y - 2 + 7y = 12

then your going to want to add 2 to both sides of the equation.

it will now look like this: 6y -2 + 7y + 2 = 12 + 2 = 14

simplify: 6y + 7y = 14

add the like terms: 13y = 14


5 0
3 years ago
Help me with this please (sorry for the bad picture) ​
Elenna [48]

<h2>I HOPE IT WILL HELP YOU.</h2>

THANK YOU.

<h2>^ - ^</h2>

4 0
2 years ago
Read 2 more answers
Other questions:
  • Write the given differential equation in the form L(y) = g(x), where L is a linear differential operator with constant coefficie
    9·1 answer
  • I have a circle that has a radius of 8 in. What is the circumference of the circle? What is the area of the circle? Explain your
    13·2 answers
  • Can someone please answer all parts?? Extra points for this one!
    10·1 answer
  • What is the solution to y + 7= -3
    10·1 answer
  • What is the radius for (-2,3)
    13·1 answer
  • Lisa specializes in baking lemon cupcakes. She bakes 3 dozen cupcakes every hour. The cost (in dollars) of making n cupcakes is
    5·1 answer
  • A box is filled with 2 brown cards,8 yellow cards, and 8 green cards. A card is chosen at random from the box. What is the proba
    13·1 answer
  • What is the value of 273 and 280
    15·1 answer
  • Which equation represents y=13x-12
    8·2 answers
  • PLEASE HELP WILL MARK BRAINLYIST HELP
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!