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
Black_prince [1.1K]
2 years ago
12

Renan found the sum (4.2x + 3) + (5.7x – 2) + (5 – 2.6x), as shown. 4.2x + 3 + 5.7x – 2 + 5 – 2.6x 4.2x + 5.7x + 2.6x + 3 – 2 +

5 (4.2 + 5.7 + 2.6)x + 3 – 2 + 5 12.5x + 6 What was Renan's error in adding the expressions? He used the commutative property incorrectly. He used the distributive property incorrectly. He added incorrectly. He multiplied incorrectly.
Mathematics
2 answers:
Dmitriy789 [7]2 years ago
8 0

Answer:

He used the commutative property incorrectly as he had no such addition of the property of any function to be done in sequence.

Elden [556K]2 years ago
4 0

Answer:

He used the commutative property incorrectly. should be first answer good luck.

Step-by-step explanation:

You might be interested in
a baseball pitcher won 80% of the games he played. if he pitched 35 games, how many games did he win?
andrey2020 [161]

Answer:

28 games

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
How do I solve the equation in an interval from 0 to 2π ? 9 cos 2t = 6​
Ivahew [28]

9\cos(2t)=6\implies\cos(2t)=\dfrac23

Using the fact that cos is 2π-periodic, we have

\cos(2t)=\dfrac23\implies2t=\cos^{-1}\left(\dfrac23\right)+2n\pi

That is, \cos(\theta+2n\pi)=\cos\theta for any \theta and integer n.

\implies t=\dfrac12\cos^{-1}\left(\dfrac23\right)+n\pi

We get 2 solutions in the interval [0, 2π] for n=0 and n=1,

t=\dfrac12\cos^{-1}\left(\dfrac23\right)\text{ and }t=\dfrac12\cos^{-1}\left(\dfrac23\right)+\pi

4 0
2 years ago
The variables A, B, and C represent polynomials where A=x^2, B=3x+2, and C=x-3. What is AB-C^2 in simplest form?
yuradex [85]

Answer:

AB-C^2 = 3x^3 + x^2 + 9

Step-by-step explanation:

Hi

AB = (x^2)*(3x+2)= 3x^3 + 2x^2

C^2= (x-3)^2 = x^2 - 9

So

AB-C^2 = 3x^3 + 2x^2 - x^2 + 9 = 3x^3 + x^2 + 9

7 0
3 years ago
Read 2 more answers
1. William earns $134,644.80 per year, and has his federal taxes withheld from each weekly check. In addition, a total of $53.60
SashulF [63]
I only have the answer for 3 and i believe it is 20,090

3 0
3 years ago
Can someone do question 13 please
Artyom0805 [142]

Answer:

A = 4/7

B = 2/3

C = 2/5

Step-by-step explanation:

It's Easy.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose the pie chart shown represents the monthly budget for a person who maked $2,000 a month. This person decides to rent an
    12·1 answer
  • A rectangle has an area of 120 square cm. Its length and width are whole numbers. List the possible dimensions of the rectangle.
    6·1 answer
  • Year 2 revenue is 5,000,000 at 32%By what percent would you need to
    13·1 answer
  • Lena will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $50 and costs an add
    15·1 answer
  • Troy and Jared are eating carrots if they each can eat two carrots in 3 minutes how long will it take the two of them to eat 18
    14·2 answers
  • Solve the inequality -2c – 5 > -7 and graph the solution.
    10·1 answer
  • Find the missing length indicated.
    11·2 answers
  • Which of the following describes the transformations of the cubic parent function, f(x) = x, that
    7·1 answer
  • E-<br> -<br> )<br> Simplify<br> -13-<br> .<br> o o<br> 4
    5·1 answer
  • A civil engineer is mapping the overhead clearance of his family’s property on a coordinate grid. The ground is represented by t
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!