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
Solnce55 [7]
3 years ago
12

An object is dropped from a height of 400 feet. The amount of time, in seconds, the object takes to hit the ground can be found

by solving the equation -16t^2+400=0 . How many seconds will it take to hit the ground?
Mathematics
1 answer:
lidiya [134]3 years ago
6 0

-16t^2+400=0

16t^2=400

take square root on both sides.

\sqrt{16t^2} =\sqrt{400}

4t=20

t=20/4

t=5

You might be interested in
Diego deposited \$ 10,000$10,000 for 44 years at a rate of 6\%6% simple interest. ​Find the amount of interest Diego earned afte
timama [110]

Answer:

$2,400

Step-by-step explanation:

Note: The correct years is 4 not 44

The Principal  = $10,000

Time period = 4 years

Rate = 6 % p.a.

Simple Interest = Principal * Rate * Time

Simple Interest = $10,000 * 6% * 44

Simple Interest = $2,400

So, the amount of interest Diego earned after four years is $2,400

8 0
3 years ago
Please help brainliest<br> (Algebra 1)
den301095 [7]

Answer:

B - 11 > (w - 4)²

C - y < 3⁴

D - 5 + 9 < 5 · 9

are your correct answers

Step-by-step explanation:

x² - 5x + 6 and z + 11 / 2z - 1 are equalities phrases and rest of them will be inequalities.

HOPE THIS HELPS YOU

Follw me = 10 thanks

Mark as brainliest = 10 thanks

1 thanks to me = 2 thanks

3 0
3 years ago
A pizza is divided into 12 pieces. Glenn and Sophie each ate 1/4 of the pizza on Thursday. The next day Sophie ate 1/3 of the pi
Natali5045456 [20]

Answer:

6 slices

Step-by-step explanation:

The full pizza is 12 pieces.  Divide 12 by 4 to find out how much she ate on Thursday.   1/4 of 12 is 3 so she ate 3 slices on Thursday.  Subtract 3 from 12 to find out how much was left for the next day.  There were 9 slices the next day.  Next, divide 9 by 3 to find out what 1/3 of 9 is.  1/3 of 9 is 3 so subtract 3 from the 9 slices.  6 slices are the original pizza remain.

3 0
3 years ago
a rectangular prism has a volume of 4,212 cubic yards, width 2 yards, and length 27 yards find it’s height in yards
weqwewe [10]

Answer:

height = 78 yd

Step-by-step explanation:

<u>Formula</u>

Volume of a rectangular prism = width × length × height

Given:

  • volume = 4,212 yd³
  • width = 2 yd
  • length = 27 yd

Substituting given values into the formula and solving for height:

⇒ 4212 = 2 × 27 × height

⇒ 4212 = 54 × height

⇒ height = 4212 ÷ 54

⇒ height = 78 yd

7 0
2 years ago
Read 2 more answers
Linear Equations with explanation plz
MissTica

Answer:

0, -2

Step-by-step explanation:

.................:)

3 0
3 years ago
Read 2 more answers
Other questions:
  • 360 by 36 using partial quotient
    9·1 answer
  • Model the two step equation by drawing algebra tiles 3t+10=16
    5·1 answer
  • Twenty-four students took a test. Fourteen students earned an A and 10 students earned a
    8·1 answer
  • How to evaluate the rational expression
    14·1 answer
  • 1.) <br> A.) tan 50°<br> B.) cot 50°<br> C.) sin 50°<br> D.) cos 50°<br> E.) cot 50°
    10·2 answers
  • What is the answer to this I can’t figure it out !
    13·2 answers
  • At the range and the standard deviation of the data set 40, 35, 45, 55, 60
    11·2 answers
  • Which polynomials are in standard form?
    8·1 answer
  • which of the following is the quotient of the rational expression shown below? x-4/2x^2 divided by 2x+3/x+4
    14·1 answer
  • A line and two triangles are shown on the coordinate plane.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!