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
Aleksandr [31]
3 years ago
5

The function f(x) = –10(x)(x – 4) represents the approximate height of a projectile launched from the ground into the air with a

n initial velocity of 40 meters per second. How long, from launch to landing, does the projectile stay in the air? 0 seconds 1 second 2 seconds 4 seconds
Mathematics
2 answers:
ankoles [38]3 years ago
7 0

Answer: 4 seconds is how long, 100% correct just got it right on the quiz.

sineoko [7]3 years ago
4 0
The height of the project becomes zero when it hits the ground which is also the total time at which the projectile stays in the air. Equating the function to zero:
-10(x)(x - 4) = 0
The roots of this quadratic equation are:
x = 0, and x=4

Therefore, the projectile stays in the air for
4 seconds

You might be interested in
Misha and Carlos collect baseball cards. Misha has been collecting cards longer and finds a ratio of 9 to 4 when comparing her t
OverLord2011 [107]

Answer:

247 cards

Step-by-step explanation:

Misha : Carlos = 9 : 4

Carlos = 76 cards

Misha = x cards

9 : 4 = x : 76

9/4 = x/76

Cross product

9 * 76 = 4 * x

684 = 4x

x = 684 /4

x = 171

Misha = 171 cards

how many cards do they have together?

Total cards altogether = Misha + Carlos

= 171 cards + 76 cards

= 247 cards

Total cards altogether = 247 cards

5 0
3 years ago
What is nine time nine​
olya-2409 [2.1K]

Answer:

81

Step-by-step explanation:

uhm..... 9 times 9 is 81

have a nice day....?

5 0
2 years ago
How much simple interest does 2560 earn in 17 months at a rate of 1 1/8
Tatiana [17]

Answer:185.87

Step-by-step explanation:

Explanation:

simple interest (SI) can be calculated using the formula

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

∣

∣

∣

2

2

S

I

=

P

R

T

100

2

2

∣

∣

∣

−−−−−−−−−−−−−−−

where P is the Principal, that is amount of money

R is the rate of interest

T is time in years

here P

=

$

2560

,

R

=

5

1

8

=

41

8

and T

=

17

12

years

⇒

S

I

=

2560

×

41

8

×

17

12

100

⇒

S

I

=

2560

×

41

×

17

100

×

8

×

12

⇒

S

I

≈

$

185.87

to nearest cent

4 0
3 years ago
Math need exact anwser pls!!!!!!
stiks02 [169]
What’s the question
6 0
2 years ago
Answer to solve for z??
andrew11 [14]

Answer:

z= 0.375 or 3/8

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 5/6 divided by 7/8. please show work
    11·2 answers
  • Show work if needed.please help. Only the Canadian one.
    6·1 answer
  • What is one fifth times twenty six
    13·2 answers
  • Multiplying decimals<br> 1.36 x 1.5 =
    14·2 answers
  • The manufacturerâs suggested retail price (MSRP) of a certain item is $60. Store A sells the item for 20 percent more than the M
    15·1 answer
  • max decides to use 700 rubber bands to make 8 balls. is it reasonable to say he would use about 90 rubber bands to make each bal
    15·1 answer
  • Simplify the expression: (15-8)^9<br> —————<br> [ (5+2)^2]^3
    14·1 answer
  • The value of the 6 in the number 60,324 is how many times greater than the value of the 6 in the number 4,621​
    12·1 answer
  • Whats is the answer to this question ?
    5·1 answer
  • The verticles of a polygon p(0,4), q(5,4), r(5.-3) and s(0,-3). What are the perimeters of the polygon
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!