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
7

Consider the following equations and name the property of equality used to solve for the variable.

Mathematics
1 answer:
Viktor [21]3 years ago
5 0

9514 1404 393

Answer:

  A. subtraction

  B. division

  C. multiplication

  D. addition

Step-by-step explanation:

Observe what is done to the variable. Choose the operation that turns the unwanted value into the appropriate identity element.

A. 3.75 is added. To make that value be 0, we subtract 3.75.

B. -3 is multiplied. To make that value be 1, we divide by -3.

C. m is divided by 5. To make that 1/5 multiplier be 1, we multiply by 5.

D. 4 is subtracted. To make that value be zero, we add 4.

_____

<em>Additional comment</em>

Since subtraction is the same as addition of the opposite, and division is the same as multiplication by the reciprocal, the only two properties we really need are the <em>addition property</em> and <em>multiplication property</em>. Your grader may disagree.

You might be interested in
In ΔXYZ, x = 8.3 meters, y = 9 meters, and z = 15 meters. Find the remaining measurements of the triangle, and round your answer
laila [671]

Answer:

<u>The correct answer is B. ∠X = 28.6°, ∠Y = 31.2°, ∠Z = 120.2°</u>

Step-by-step explanation:

Let's recall that for solving a SSS triangle, we :

1. Use the Law of Cosines first to calculate one of the angles

2. Use The Law of Cosines again to find another angle

3. Finally use angles of a triangle add to 180° to find the last angle.

1. Cos x = (9² + 15² - 8.3²/2 * 9 * 15)

Cos x = (81 + 225 - 68.89/270)

Cos x = 0.878

x = Cos ⁻¹ (0.878)

x = 28.6° (rounding to the next tenth)

2. Cos y = (8.3² + 15² - 9²/2 * 8.3 * 15)

Cos y = (68.89 + 225 - 81/249)

Cos y = 0.855

x = Cos ⁻¹ (0.855)

x = 31.2° (rounding to the next tenth)

3. z = 180 - 31.2 - 28.6

z = 120.2°

<u>The correct answer is B. ∠X = 28.6°, ∠Y = 31.2°, ∠Z = 120.2°</u>

4 0
3 years ago
Please help me with my questions!! It’s in my profile. Please help me, and I’ll help you with your questions!!!
nataly862011 [7]

Answer:

help me

Step-by-step explanation:

I am having trouble in math please help it's a quiz and I need to pass it

5 0
3 years ago
Please help me only serious answers ☺️
romanna [79]

Answer:

Parallelogram

Result

Area = b × h

= 5.5 × 11

<h3>= 60.5 feet2</h3>

<h2>60.5 cm²</h2>
4 0
3 years ago
Read 2 more answers
Which statements are true about the solid, which has a length of
Virty [35]

Answer:

Step-by-step explanation:

The solid is a cuboid with length of 6 inches, a width of 3 inches, and a height of 2 inches.

The volume is l× w×h = 6×3×2 = 36inches^3

Therefore, the following statements are true about the Solid

1) The volume of the solid is 36 in.3.

2) The perimeter of one of its faces is 10 inches.(2width + 2 height = 2×2 + 2×3 = 10 inches)

3) The area of one of its faces is 6 inches^2. (width × height = 3×2 = 6 inches)

4) The area of one of its faces is 12 in.2.(length × height = 6×2 = 12 inches^2)

3 0
3 years ago
Read 2 more answers
Est form. Lessons 3-5)<br> 2<br> 9
Gekata [30.6K]

Answer:

what is this mean is there a question

3 0
3 years ago
Other questions:
  • Using the formula r = d/t where d is the distance in miles, r is the rate, and t is the time in hours, at which rate must you tr
    9·2 answers
  • Help! The grades A, B, C, and D that you may get in a class are discrete. There is no such thing as a grade of B 1/2, for exampl
    14·2 answers
  • Can someone help me ?
    9·1 answer
  • What term is 1/1024 in the geometric sequence,-1,1/4,-1/6..?
    6·1 answer
  • SOMEONE HELP ME PLEASE ITS DUE IN 5 MINUTES
    12·1 answer
  • In a survey of 2,800 people who owned a certain type of​ car, 1,680 said they would buy that type of car again. What percent of
    7·1 answer
  • 15 is what percentage of 25
    5·2 answers
  • Explain the relationship between acceleration and velocity
    11·1 answer
  • Cynthia invests some money in a bank which pays 5% compound interest per year.
    8·1 answer
  • Why can the formula below be used to find the area of a square?<br> 1/2 (d1d2)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!