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
viktelen [127]
3 years ago
11

Hi, help is very much appreciated!

Mathematics
1 answer:
Lelu [443]3 years ago
6 0

Here's a visual representation. The numbers are a little blurry though.

You might be interested in
The table represents the function f(x)=2x+1
elena-14-01-66 [18.8K]
Maybe try using Photomath it works for me. Good luck
4 0
3 years ago
Two hundred eighty two people attended a recent performance of Cinderella. Adult tickets sold for $5 and children’s tickets for
jasenka [17]
The correct answer is
100 adults
182 children
5 0
3 years ago
The deck of a bridge is suspended 275 feet above a river. If a pebble falls off the side of the bridge, the height, in feet, of
Ivenika [448]

Answer:

Our equation for the height is:

y(t) = 275 - 16*t^2.

a) To find the average velocity between two times, t1 and t2, (where t2 > t1) the equation is:

AV = \frac{y(t2) - y(t1)}{t2 - t1}

Then:

i) t1 = 4s, t2 = 4s + 0.1s = 4.1s

The average velocity is:

AV = \frac{(275 - 16*4.1^2) - (275 - 16*4^2)}{4.1 - 4} = \frac{16(4^2 - 4.1^2)}{0.1} = -129.6

And the units will be ft/s, so the average speed is:

-129.6 ft/s

The minus sign is because te pebble is falling down.

ii)  t1 = 4s, t2 = 4s + 0.05s = 4.05s

The average velocity is:

AV = \frac{(275 - 16*4.05^2) - (275 - 16*4^2)}{4.05 - 4} = \frac{16(4^2 - 4.05^2)}{0.05} = -128.8

So the average speed is -128.9 ft/s

iii)  t1 = 4s, t2 = 4s + 0.01s = 4.01s

The average speed is:

AV = \frac{(275 - 16*4.01^2) - (275 - 16*4^2)}{4.01 - 4} = \frac{16(4^2 - 4.01^2)}{0.01} = -128.16

The average speed is -128.16 ft/s.

b) The instantaneous velocity of the pebble after 4 seconds can be obtained by looking at the velocity equation, that is the derivative of the height equation.

v(t) = dy(t)/dt.

v(t) = -2*16*t + 0

Then the velocity at t = 4s is:

v(4s) = -32*4 = -128

The instantaneous velocity at t = 4s is -128 ft/s.

3 0
3 years ago
Find the sum and express it in the simplest form (-2y-4x+7)+(-4y+x-1)
Marina86 [1]

Y=7+2x......(1)

put this value in 4y+x=1

4(7+2x)+x=1

28+14x+x=1

15x=-27

x=-27/15.....(2)

put this value in eqn (1)

y=7+2(-27/5)

y=7-54/5

y=-3.8

I really hope this helps :D:D:D!!!!

3 0
3 years ago
Read 2 more answers
A class of 25 students took a math test. Ten students had an average of 88. The other students had an average of 76. What is the
VLD [36.1K]

The answer is B. 80.8

8 0
3 years ago
Read 2 more answers
Other questions:
  • 6.4 × 10^{3} [/tex] + 1.4 × 10^{4} [/tex] + 7.5 × 10³= ?
    6·1 answer
  • Can someone please help me out. I am in need of desperate help and have to leave in one hour! Please help
    7·2 answers
  • Can someone write the point slope equation
    8·1 answer
  • The length of a rectangle is one inch less than three times its width. If the perimeter of the rectangle is 54 inches, find the
    6·1 answer
  • If the measure of the third angle of the triangle is 45 ​° more than three time the measure of either of the other two​ angles,
    13·1 answer
  • Compare: 0.4 ______ 0.127
    6·1 answer
  • Pleaseee helppp answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!
    11·1 answer
  • What is the circumference of a circle that has a radius of 14?
    10·1 answer
  • If f(x) = 2(x – 3) + 4, findf (-8).
    13·1 answer
  • Evaluate the expression for the value given. <br> 8(7 - x) ; f or x = 2
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!