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
marusya05 [52]
3 years ago
10

The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and

found that it could be modeled using the equation f(x) = –0.3x2 + 2x, where f(x) is the height of the path of the water above the ground, in feet, and x is the horizontal distance of the path of the water from the end of the hose, in feet.
When the water was 4 feet from the end of the hose, what was its height above the ground?

3.2 feet
4.8 feet
5.6 feet
6.8 feet
Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0

Answer:  A) 3.2 ft

<u>Step-by-step explanation:</u>

f(4) = -0.3(4)² + 2(4)

     = -4.8 + 8

     =  3.2

You might be interested in
S = 1 / g t ² π, solve for t​
Finger [1]

s =   \frac{1}{g {t}^{2}\pi }

multiply through by

g {t}^{2} \pi

s \times g {t}^{2} \pi =  \frac{1}{g {t}^{2} \pi}  \times g {t}^{2} \pi

sg {t}^{2} \pi = 1

dividing through by

sgπ

{t}^{2}  =  \frac{1}{sg\pi}

t =  \sqrt{ \frac{1}{sg\pi} }

4 0
3 years ago
Read 2 more answers
Help please find the x
kobusy [5.1K]

Step-by-step explanation:

a)

Two of the three interior angles are known. Both are equal to 55°. This can be seen by looking closely at the picture. To find the third angle subtract the other two from 360°

360\textdegree-55\textdegree-55\textdegree=x

b)

Do the same thing only afterward subtract the third angle from 180 to find the supplementary angle

360\textdegree-40\textdegree-28\textdegree=ans\textdegree\\180\textdegree-ans\textdegree=x

4 0
2 years ago
Solve the system of equations algebraically.<br><br> 3x+8y=−6<br> x−y=9 <br> (x,y)= (
vova2212 [387]

Step-by-step explanation:

x=y+9

substitute

3(y+9)+8y=-6

3y+27+8y= -6

13y = -6 -27

13y= -33

y = -33/13

x = -33/13 + 9

4 0
2 years ago
James has 12 dimes in hus pocket.How much money does he have
Marina86 [1]

Answer:

$1.20

Step-by-step explanation:

A dime is worth 10¢.

10¢ x 12 = 120¢

Since a dollar is 100¢, James would have a dollar and 20¢ left over. So, $1.20.

7 0
3 years ago
Read 2 more answers
A<br> B<br> C<br> D<br><br> Which is my answer ^
Mkey [24]

Answer:

A

Step-by-step explanation:


7 0
3 years ago
Other questions:
  • Write quadratic equation whose roots are 4 and -2 and whose leading coefficient is 5
    10·1 answer
  • Triangle with the base 14in and height 10in
    10·2 answers
  • Two identical point charges are initially 5.3 cm from each other. If they are released at the same instant from rest, how fast w
    6·1 answer
  • Someone PLEASE HELP ME with this question i think its A
    5·1 answer
  • you are given the expressions 76+n and 2n + 26. What is the smallest value of n that will make each number rational?
    12·1 answer
  • What percentage would my grade be if I got a 50% on a project that is worth 20% of my grade and my grade is 87%/B+.
    13·1 answer
  • What is the volume help please
    12·2 answers
  • A map scale has 1cm:3miles the distance between two towns 7 cm what is the real life distance between the two towns?
    14·1 answer
  • Is 7/5 greater than 11?
    10·1 answer
  • Please help me out I am not very good at math or graphs.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!