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
elena-14-01-66 [18.8K]
3 years ago
11

Can anyone help me if so Ty no file answers please.

Mathematics
1 answer:
Stells [14]3 years ago
6 0

Answer:

I think the error in Cynthia's answer is when she multiplied

Step-by-step explanation:

-2x(x^2 - 3) here

It should be = -2x^2 + 4x^2 - 2

You might be interested in
What it 2.6% written as a decimal?
Readme [11.4K]
.026 because 2.6%*100 is 0.026
5 0
3 years ago
Read 2 more answers
In the orthonormal system (O; i⃗,j⃗) below, consider point A(3, −1), vector v⃗(2,1), and
Akimi4 [234]

Answer:

Step-by-step explanation:

8 0
3 years ago
What’s the volume of a cylinder with a radius of 1 and height of 3ft?
Dafna1 [17]

Answer:

9.42

Step-by-step explanation:

V=pir2h

(pi, radius squared, height)

hope this helped!

6 0
2 years ago
If Lisa earns $45 in 7.5 hours, find her unit rate in dollars per hour.
MakcuM [25]

Answer: lisa earns 6 dollars per hour

Step-by-step explanation:

45 divided by 7.5 =6

5 0
2 years ago
Read 2 more answers
A peach orchard owner wants to maximize the amount of peaches produced by her orchard.
qaws [65]

Answer:

  a) Y(x) = {900, x≤30; 900-40(x-30), x>30}

  b) T(x) = {900x, x≤30; 2100x-40x², x>30}

  c) dT/dx = {900, x≤30; 2100-80x, x>30}

Step-by-step explanation:

a) The problem statement gives the function for x ≤ 30, and gives an example of evaluating the function for x = 35. So, replacing 35 in the example with x gives the function definition for x > 30.

\displaystyle Y(x)=\left\{\begin{array}{lcl}900&\text{for}&x\le 30\\900-40(x-30)&\text{for}&x>30\end{array}\right.

__

b) The yield per acre is the product of the number of trees and the yield per tree:

  T(x) = x·Y(x)

\displaystyle T(x)=\left \{\begin{array}{lcl}900x&\text{for}&x\le 30\\2100x-40x^2& \text{for}&x>30\end{array}\right.

__

c) The derivative is ...

\displaystyle\frac{dT}{dx}=\left \{\begin{array}{lcl}900&\text{for}&x\le 30\\2100-80x& \text{for}&x>30\end{array}\right.

_____

The attached graph shows the yield per acre (purple, overlaid by red for x<30), the total yield (black), and the derivative of the total yield (red). You will note the discontinuity in the derivative at x=30, where adding one more tree per acre suddenly makes the rate of change of yield be negative.

6 0
3 years ago
Other questions:
  • I don't understand???? I'll give the brainliest!!!!!
    5·1 answer
  • Saidhari bought a toaster oven for $45. This price was 1/4 off the list price. What was the list price?
    8·1 answer
  • You discovered 1000 grams of an unknown element called Coolium 23 that has a half life 23 days. How long will it take for you to
    12·1 answer
  • Revel and Scooters are the best scooter experience in the Nation which is the best scooter rental service in the nation? Create
    9·1 answer
  • Question 6 (1 point)
    11·1 answer
  • PLEASE HELP 30 points!!!!!<br> Find the length of each segment<br> CD and AD
    9·1 answer
  • A cone and cylinder have the same radius and the same volume. The cylinder has a height of 10m and a radius of 12m. Find the vol
    14·2 answers
  • How many of the 320 million Americans would you predict wear contacts lenses?​
    11·2 answers
  • Which ordered pair is a solution to the system of equalities y&lt;3x y&lt;5
    13·1 answer
  • Which of these is an exponential parent function?  A. f(x) = 2^x – 3  B. f(x) = 2^x + 2  C. f(x) = 2^x  D. f(x) = 2^x + 1/3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!