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
FromTheMoon [43]
3 years ago
14

3 = 2 – x 3 = 2 – 2 – x 3 = –x 2003-03-02-00-00_files/i0110000.jpg –3 = x A. The student incorrectly applied the multiplication

property of equality before the addition property of equality. B. The student did not properly apply the addition property of equality to isolate x. C. The student did not properly apply the multiplication property of equality to isolate x. D. The student correctly solved the two-step equation.
Mathematics
1 answer:
rewona [7]3 years ago
5 0
Answer:
B. The student did not properly apply the addition property to isolate x

Explanation:
When given an equation to solve, always remember that when you do an external operation (add/subtract/multiply a term or divide by a term) on one side of the equation, the same operation should be applied on the other side in order to maintain the equality of the equation.

Now, let's take a look on the steps done:
Step 1:
3 = 2 - x
Step 2:
3 = 2 - 2 - x
Step 3:
3 = -x

Now, note n step 2, the student wanted to get rid of the 2 next to the x, therefore, he subtracted 2. However, the student did not subtract the 2 from the other side of the equation. Since we're taking addition (we're adding a -2), therefore, the student incorrectly applied the addition property to isolate the x.

The correct steps would be as follows:
Step 1:
3 = 2 - x
Step 2:
3 - 2 = 2 - 2 - x
Step 3:
1 = - x

Hope this helps :)
You might be interested in
in an isosceles triangle the base angle are equal and the vertex is 80 degree find the measurement of the base angle​
Oliga [24]

Answer:

50 each base angle

Base Angle_1 + Base Angle_2 + Vertex = 180

50 + 50 + 80 = 180

180 = 180

Step-by-step explanation:

Sum of interior angles of Triangle is 18- degrees.

2b + vertex = 180

2b + 80 = 180

2b + 80 -80 = 180 - 80

2b = 100

b = 50

7 0
3 years ago
ANSWER AS MANY AS POSSIBLE! I WILL MARK BRAINLIEST!!!
kodGreya [7K]

Answer:

88c = -300

105c = 81300

105b = 294

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the difference between balance forces and unbalance forces?​
elena55 [62]

Step-by-step explanation:

What are the differences in how balanced and unbalanced forces affect motion? Balanced Forces acting on an object will not change the object's motion. Unbalanced Forces acting on an object will change the change the object's motion

3 0
2 years ago
Dani wants to spend less than $25 on a birthday present for her friend. If she buys a necklace for $9.50, how many pairs of earr
Archy [21]

Answer:

4

Step-by-step explanation:

25- 9.5 is 15.5 and 4 ×3.75 is 15 you would have still have .5 cents

3 0
2 years ago
Use an appropriate Taylor series to find the first four nonzero terms of an infinite series that is equal to sin(5/2).
koban [17]

Answer:

2.5, -2.61, 0.81, -0.12

Step-by-step explanation:

The taylor series of the function sin(x) around zero is given by

sin(x)=\sum_{n=0}^{\infty}\dfrac{(-1)^k}{(2k-1)!}x^{2k+1}=x-\dfrac{x^3}{3!}+\dfrac{x^5}{5!}-\dfrac{x^7}{7!}

Therefore,

\sin(\frac{5}{2})=\dfrac{5}{2}-\dfrac{[\frac{5}{2}]^3}{3!}+\dfrac{[\frac{5}{2}]^5}{5!}-\dfrac{[\frac{5}{2}]^7}{7!}+...

hence the first four nonzero terms of the series are

\dfrac{5}{2}=2.5\\\\-\dfrac{[\frac{5}{2}]^3}{3!} \approx -2.61\\\\\dfrac{[\frac{5}{2}]^5}{5!} \approx 0.81\\\\-\dfrac{[\frac{5}{2}]^7}{7!} \approx -0.12

6 0
3 years ago
Other questions:
  • What is measure of angle P?
    10·2 answers
  • A rectangle has a width of 3/4 inches and a length of 9/10 inches. Another rectangle
    12·1 answer
  • tia went home and said to her mom, I learned that 10/4 is the same as 40,000' she has made a mistake in her thinking. use wirds,
    10·1 answer
  • niah works as a retail sales clerk earning $18,000 per yer. she plans to go to school for medical billing that has a median sala
    6·2 answers
  • What are the coordinates of Point W?
    14·2 answers
  • A study looked at n=238 adolescents, all free of severe illness.23 Subjects wore a wrist actigraph, which allowed the researcher
    5·1 answer
  • What is the justification for each step in solving the inequality?
    11·1 answer
  • What multiplied by 8 plus 1 divided by 5 equals 5?
    7·1 answer
  • Most ATM’s require a 4-digit code using the digits 0-9 how many 4-digit codes can you use
    15·1 answer
  • Is he square root of -144 rational or irrational?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!