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
jonny [76]
3 years ago
9

A ball is thrown from a height of 110 feet with an initial downward velocity of 6/fts. The ball's height h (in feet) after t sec

onds is given by the following:
h=110-6t-16t^2
How long after the ball is thrown does it hit the ground?
Round your answer(s) to the nearest hundredth.
Mathematics
1 answer:
Tcecarenko [31]3 years ago
8 0
Rearrange equation.h=-16t^2-6t+110 h = 0 at the ground. divide both sides of the equation by (-2) to yield: 0 = 8t^2+3t - 55 and use quadratic equation h=<span>-b±√(b2 - 4ac)</span>                                                    2awhere a = 8, b= 3, c=-55 Substitute:  [-3 ± √(9 - 4*8*(-55))] / (16) = [6 ± √(36 + 1760)] / (16) = [6 ± √(1796)] /16 = (6 ± 42.3792)/16.  Time can only be positive for this problem...so discard negative answer. = 48.3792/16 = 3.02 seconds
You might be interested in
Which expression is equivalent to (3x + 4) - (7x + 2)?
kozerog [31]

Answer:

-4x - -2

Step-by-step explanation:

its hard to explain sorry

3 0
3 years ago
PLEASE HURRY
tangare [24]
B can make a triangle
4 0
3 years ago
Read 2 more answers
Right answer gets brainlist
Vladimir [108]

105 i think nvm not corrupted picture

4 0
3 years ago
I NEED HELP ASAP!! WILL GET 15 POINTS FOR THE CORRECT ANSWER!!!
Elanso [62]
All real numbers such that y is greater than 3/17 or y>3/17. Hope this helps!!!!

7 0
3 years ago
Lorenzo is planning a 285-mile trip. His car’s EPA rating is 18 mpg. The number of gallons of gas that Lorenzo will need for the
SpyIntel [72]
It would require 15.8333333 to make that trip.
4 0
3 years ago
Read 2 more answers
Other questions:
  • The standard form of the equation of a parabola is y= 5x2 + 20x+ 14.
    10·1 answer
  • Factorize <br>m²-2mn+n²-9r​
    5·1 answer
  • Solve each system by substitution.<br> 8). -7x-2y=-13<br> x-2y=11
    12·1 answer
  • Find the 40th term of this arithmetic sequence.
    13·1 answer
  • For the equation x2 + 2x − 8 = 0, what is the sum of the solutions?
    11·1 answer
  • (Will mark brainliest if corret.)
    15·1 answer
  • 5-6x.8571 = 8x8571 + 17
    11·1 answer
  • The results of a survey in the cafeteria show that 20% of students like ketchup, 50% like mustard, and 15% like both ketchup and
    14·1 answer
  • Is it linear or nonlinear
    11·2 answers
  • Train a travels a distance of 270 miles in the same amount of time training beef travels 160 miles. train a travels 55 miles per
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!