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
Gnom [1K]
3 years ago
12

the quadratic function h (t)=-16t^2+150 models a balls height, in feet, over time, in seconds, after it is dropped from a 15 sto

ry building
Mathematics
1 answer:
OLEGan [10]3 years ago
4 0

From the equation, h(t)=-16t^2+150. You are given the height of the building which is 15ft and you are asked to find the time it takes to fall in seconds.

h(t)=-16t^2+150

15=-16t^2+150

15 – 150 = -16t^2

-135 = -16t^2

t = 2.9 seconds

You might be interested in
7. (0) + (-9) * (+8) =
ivolga24 [154]

Answer:

-72

Step-by-step explanation:

7 0
3 years ago
I need help with this geometry question!
Ksenya-84 [330]
Hello there! So, this is a quadrilateral and quadrilaterals equal 360 degrees. Let’s combine like terms to start off. 39x + 9 = 360. First, let’s subtract 9 from both sides to get 39x = 351. Next, divide each side y 39 to isolate the “x”. When you do that, x = 9. Now, let’s plug in the values for each, when you do, here are the final answers.

x = 9
E = 75 degrees
F = 91 degrees
G = 89 degrees
H = 105 degrees

Those are all of the angle measurements, but it wants the measurement of angle H. Therefore, that angle measurement is 105 degrees.
4 0
4 years ago
PLEASE HELP!<br> solve for x and then find measure for angle b
Bezzdna [24]
<h3>Answers:</h3><h3>x = 12</h3><h3>Angle B = 45 degrees</h3>

===========================================================

Explanation:

Angles A and B are alternate exterior angles.

Due to the parallel lines, alternate exterior angles are congruent

A = B

5x-15 = 2x+21

5x-2x = 21+15

3x = 36

x = 36/3

x = 12

Use this x value to find the measure of angle B

angle B = 2x+21

angle B = 2*12+21

angle B = 24+21

angle B = 45 degrees

As a check,

angle A = 5x-15

angle A = 5*12+15

angle A = 60-15

angle A = 45 degrees

Since A and B are both 45 degrees, this confirms the correct x value

4 0
4 years ago
Read 2 more answers
Sand for use on icy roads is stored in a conical pile 14.2 m high and with a base diameter of 34.4 m calculate the volume of the
sammy [17]

Answer:

1. The volume of the pile is 4,399.7719 m^3

2. The number of sanders to be filled from a pile is 638

Step-by-step explanation:

Here, we firstly would calculate the volume of the pile

Mathematically, that will be;

V = 1/3 * pi * r^2 * h

from the question, h = 14.2

Mathematically, r = d/2

r = 34.4/2 = 17.2 m

So the volume will be:

V = 1/3 * 3.142 * 17.2^2 * 14.2

V = 4,399.7719 m^3

To find the number of sanders to be filled,

we simply divide the volume obtained by the volume a sander can take

That will be;

4,399.7719/6.9

= 637.6 which is 638

4 0
3 years ago
A square has an area of 15in^2. what is the approximate side lengths of the card
Akimi4 [234]
Square area=side^2
15=area=side^2
sqrt both sides
√15=side
aprox
3.87298=side

about 3.9in
5 0
3 years ago
Read 2 more answers
Other questions:
  • If f(x)=4x2=1 and g(x)=x2-5, find (f-g)(x)<br>A:3x2+6<br>B:5x2-6<br>C:3x2-4<br>D:5x2-4
    14·1 answer
  • -[-8+7]-[1-7] what does it equal show work
    13·1 answer
  • HELP! 7th grade math! GIVE CORRECT ANSWER AND YOU WILL GET BRAINLIEST!!
    11·2 answers
  • Find (f*g)(x) when f(x)=x^2-7x+12 and g(x)=3/x^2-16
    8·1 answer
  • Identify the equivalent expression for m^1/3 x m^1/5
    9·2 answers
  • I forgot how to do this (2x+3)(x-1)
    12·1 answer
  • Which of the expressions are equivalent to the one below? Check all that
    7·1 answer
  • Pls help asappp solve for x
    15·2 answers
  • Please help this is on a test!!!!<br> What does x equal when 2x = 128?
    6·2 answers
  • Question 1 (1 point)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!