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
attashe74 [19]
3 years ago
11

2. Explain and correct the error made by a student who simplified this expression.

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
6 0

Answer:

what this student did was distribute the x to all 3 numbers when what they should have done was just combine 7x and -2x, and the answer should be 5x +8

Step-by-step explanation:

By the student placing x on the outside they are making the equation seem as if 8 also had an x. However if we look at the original problem 8 does not have any variable so right away that was their first mistake. Instead they had to find the numbers that had similar values. In this case it is negative 2x and 7x. We combine those two to get 5x+8 we cannot combine these two because as said previously 8 doesnt have a variable. so the answer stays with the expression 5x+8

You might be interested in
The volume of a rectangular prism is 48 cubic meters. It is 6 meters long and 2 meters wide.
horsena [70]

Answer:

12m^2

Step-by-step explanation:

volume = 48 m^3

l*b*h = 48

12*h = 48

h = 4 m

baSe of prism will be made of l and b

so area is 12 m^2

8 0
2 years ago
Find the median of these numbers ? 2,7,5,4,3
kotykmax [81]

Answer:

4

Step-by-step explanation:

MARK AS BRAINLIST!!

5 0
3 years ago
Read 2 more answers
What is the cube answer to 24
patriot [66]
Do you mean cube root because the cube root of 24 is 2.88 and other repeating decimals
7 0
3 years ago
Read 2 more answers
Determine the slope between the points (-3, 0) and (0, 5)
Alex787 [66]
The slope is approximately 1.7x+5
5 0
3 years ago
Read 2 more answers
Helpppppp Asap!!!!!! The question is in the picture
Dominik [7]

The approximate length of side AB is 14.0. The correct option is B. 14.0 units

<h3>Law of sines </h3>

From the question, we are to determine the measure of side AB

First, we will determine the measure of angle A

A + B + C = 180° (<em>Sum of angles in a triangle</em>)

A + 65° + 35° = 180°

A = 180° - 65° - 35°

A = 80°

Now, using the law of sines

c/sinC = a/sinA

c = AB

a = BC =  24

Thus,

c/sin35° = 24/sin80°

c = (24×sin35°)/sin80°

c = 13.978

c ≈ 14.0

∴ AB = 14.0

Hence, the approximate length of side AB is 14.0. The correct option is B. 14.0 units

Learn more on Law of sines here: brainly.com/question/24138896

#SPJ1

4 0
2 years ago
Other questions:
  • Which comic section is shown in the image?
    12·1 answer
  • Can u help me with no 38
    7·2 answers
  • Use similar triangles to solve the problem. A flagpole casts a shadow of 35 ft, Nearby, a 9-ft tree casts a shadow of 7 ft. What
    10·1 answer
  • What is the surface area of a cone with diameter 28 cm and height 22 cm in terms of pi?
    9·2 answers
  • Please answer this correctly
    8·1 answer
  • there are 32 forwards and 80 guards in leos basketball league. eo must include all players on a team and wants each team to have
    12·2 answers
  • Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar.
    5·2 answers
  • 1:
    15·1 answer
  • How do you graph this?
    7·1 answer
  • A hypothesis test is conducted at the 0.05 level of significance to test whether or not the population correlation is zero. If t
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!