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
masha68 [24]
3 years ago
5

An object is thrown from a platform. Its height (in meters), x seconds after launch, is modeled by h (x) = -5 (x + 1) (x -9)

Mathematics
1 answer:
777dan777 [17]3 years ago
8 0

Answer:

Step-by-step explanation:

This is already factored for us, which is really nice, so now all we need to do is apply the Zero Product Property to the sets of parenthesis and solve for x, which will give us the 2 times that the object is on the ground.

x + 1 = 0 so

x = -1

x - 9 = 0 so

x = 9

We all know that time cannot ever be negative, so the time that the object is on the ground is 9 seconds after it's launched (which was from an initial height of 45 meters).

You might be interested in
Caitlyn’s family has a circular swimming pool. The circumference of the pool is 25.12m What is its area?
Natasha2012 [34]

Answer:

A = 50.26 sq meters

Step-by-step explanation:

we have to find the diameter first by using the circumference:

C = πd

25.12 = πd

25.12/π = d

8 = d

this means the radius is 4

A = πr²

A = π4² or 16π

A = 50.26 sq meters

4 0
3 years ago
8. Identify which equation is a graph of a vertical line.
Y_Kistochka [10]

Answer:

10x = 10.

Step-by-step explanation:

The equation will contain the  x variable only.

4 0
3 years ago
Which two points on the number line represent numbers that can be combined to make zero?
AnnZ [28]

Answer:

option (D) is the right answer

6 0
3 years ago
Marina spent $13.50 at the grocery store. She bought pears, kiwis, and pineapples. Pears cost $0.50 each, pineapples cost $1.50
kiruha [24]

Answer:

Number of pineapples = 10

Number of pears = 10 + 9 = 19

Number of kiwis = 10 - 2 = 8

Step-by-step explanation:

Money = $ 13.5

Cost of a pear = $ 0.5

Cost of a pineapple = $ 1.5

Cost of a kiwi = $ 0.3

let the number of pineapple = p  

Number of pears = p + 9

Number of kiwis = p - 2

Cost is

0.5 (p + 9) + 0.15 p + 0.3 (p - 2) = 13.5

0.5 p + 4.5 + 0.15 p + 0.3 p - 0.6 = 13.5  

0.95 p = 9.6

p = 10

So, number of pineapples = 10

Number of pears = 10 + 9 = 19

Number of kiwis = 10 - 2 = 8  

4 0
3 years ago
Read 2 more answers
What is the x-intercept of the line 10x-5y=40
jasenka [17]

Answer:

4

Step-by-step explanation:

The x-intercept occurs when y=0, if you think about it graphically.  Plug y=o into your equation:

10x - 5(0) = 40

10x = 40 (divide each side by 10)

x=4

8 0
3 years ago
Other questions:
  • A movie was shown 6 times every day from November 24 through December 19. How many times was the movie shown in all? (Note: The
    8·2 answers
  • Amaya's test scores in Algebra 1 are 48 and 61. She has one more test left and wants to earn a D for the course, which is from 6
    13·1 answer
  • What is the equation of the line in slope-intercept form?<br><br> y = _ x+_=
    7·1 answer
  • which function has the greater y intercept f(x)=6x^2+18x+3 A.f had a greater y intercept than g B g had a greater y intercept th
    14·1 answer
  • 7/52 as a mixed number
    8·2 answers
  • Help, I'm bad at math XD
    12·1 answer
  • Where is the head-quarter of Microsoft Corporation?
    12·2 answers
  • F(x) = -x² + 4x - 1 find the value of f(x) if x = 0
    6·1 answer
  • A salesman earns 30% commission on the merchandise that he sells last month he sold $600 worth of merchandise how much of commis
    13·2 answers
  • A recipe calls for 2 cups of flour and 3 cups of sugar. How many cups of flour would be needed if the amount of sugar were incre
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!