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
Blizzard [7]
3 years ago
8

Emilio throws a marshmallow into the air from his balcony. The height of the marshmallow (in feet) is represented by the equatio

n h=−16t2+8t+48, where t is the time (in seconds) after he throws the marshmallow. How long does it take the marshmallow to hit the ground, where h=0?
Mathematics
1 answer:
irinina [24]3 years ago
4 0

Answer:

Step-by-step explanation:

The height of the marshmallow (in feet) is represented by the equation h=−16t2+8t+48,

where t is the time (in seconds) after he throws the marshmallow.

The equation is a quadratic equation. When the marshmallow hits the ground, its height from the ground will be zero. Therefore

−16t^2+8t+48 = 0

- 2t^2 + t + 6 = 0

Multiplying through by the negative sign. It becomes

2t^2 - t - 6 = 0

2t^2 + 3t - 4t - 6 = 0

t(2t + 3) - 2(2t + 3) = 0

(t - 2)(2t + 3) = 0

t - 2 = 0 or 2t + 3 = 0

t = 2 or t = - 3/2

The time cannot be negative

So it will take 2 seconds to hit the ground

You might be interested in
Gimme some good memes, the best get Brainliest!​
jeyben [28]

Roses are Red

Violets are blue

God made me bootiful

What the hell happed to you. 0,0

—————————————————

This one sucks but :>

4 0
2 years ago
Read 2 more answers
Solve this linear system 28x + 44y = 964.40 21x + 33y = 723.30
Sladkaya [172]

28x + 44y = 964.40

21x + 33y = 723.30

Let's multiply the first equation by 4 and the second by -4

84x + 176y = 3857.6

-84x - 132y = -2893.2

Add the equations together.

0 + 44y = 964.4

Simplify

44y = 964.4

Divide both sides by 44

y = 964.4/44

Since we have the value of y, let's plug 964.4/44 into y for the first equation.

28x + 44(964.4/44) = 964.40

Simplify the left side

28x + 964.4 = 964.4

Subtract 964.4 from both sides

28x = 0

Divide both sides by 0

x = 0

In conclusion,

y = 964.4/44

x = 0

3 0
3 years ago
If ∠1 and ∠2 are complementary and m∠1= 17°, what is m∠2?
hichkok12 [17]
Complementary angles add up to 90*. Therefore, the logical answer would be 
D, 77.

5 0
3 years ago
For 5 points and brainliest to the best correct answer, find the missing measures.<br> Thank you
zzz [600]

Answer:

  • x = 7
  • y = 97°
  • z = 19

Step-by-step explanation:

The markings on the figure show this to be a parallelogram. That means opposite sides are congruent. Because the sides are parallel, "alternate interior" angles are also congruent.

__

Angle y forms a linear pair with the one marked 83°, so is supplementary to it:

  y = 180°-83° = 97°

__

The angle marked y is an exterior angle to the triangle containing the angle marked (7x -5)°. As such, it is equal to the sum of the remote interior angles, the one marked (7x -5)° and the unmarked one that is congruent to (3x +32)°.

  (7x -5) +(3x +32) = 97 . . . . . angle relations in the left-side triangle

  10x +27 = 97 . . . . . . . collect terms

  10x = 70 . . . . . . . . subtract 27

 x = 7 . . . . . . . . divide by 10

__

The side marked Z is congruent to the opposite parallel side, so ...

  z = 19

__

The missing measures are ...

  • x = 7
  • y = 97°
  • z = 19

_____

<em>Additional comment</em>

You can also find the value of y by adding up the interior angles of the right-side triangle. The one not shown there is "alternate interior" to the one marked (7x -5)°, hence has the same measure. This gives ...

  (7x -5) +(3x +32) +83 = 180

Subtracting 83° from both sides gives the equation we used above.

4 0
2 years ago
Find the area of a regular hexagon inscribed in a circle with a radius of 6 feet. Round to the nearest tenth.
raketka [301]

Answer:

93.5ft

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • A shower uses 12 gallons of water in 3 minutes. Complete the table and graph.
    13·1 answer
  • The sun produces 3.8x10^27 joules of energy per second. How much energy is produced in a year? (Note: a year is approximately 31
    8·1 answer
  • In a health club, research shows that on average, patrons spend an average of 42.5 minutes on the treadmill, with a standard dev
    6·1 answer
  • What does Ctrl+O beside the open option on the file menu represent? A. full name of the option B. keystroke alternative to open
    9·2 answers
  • Need help setting this up? Please help me!
    8·1 answer
  • How many points need to be removed from this graph so
    15·1 answer
  • Write an expression to represent the area of a rectangle if the length of a rectangle is three units more than its width
    6·1 answer
  • Find the perimeter of a triangle with sides measuring 10 inches, 14 inches and 15 inches.
    13·2 answers
  • Divide rupees 10,000 between A and B in the ratio 3:2
    10·1 answer
  • Order the numbers below least to greatest<br> Please help me
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!