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
liraira [26]
3 years ago
10

3х2 = 147 Solve by undoing

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
3 0

Answer: +/- 7

Step-by-step explanation:

3x² = 147

To solve for x divide through by three first.

3x² = 147

x² = 49, now we take the square root of both side by trying to apply laws of indices.

√x² = √49

The square root will neutralize the effect of the square because

√a = a¹/² so (x²)¹/², and (x²)¹/² =

x²×¹/² = x, therefore the solution is

x = +/- 7.

You might be interested in
When do you hear/use imperial measures in Canada?
castortr0y [4]

Answer:

Canadians typically use a mix of metric and imperial measurements in their daily lives.  Although Canadian driver's licences give height in centimetres, many Canadians also use imperial units to indicate height and weight.

5 0
3 years ago
Write the coordinate of G'after G(1, 2) was reflected over the line y=x.
Vikentia [17]

Answer:

(-1,2)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Which of the following types of information is best suited for display on a double line graph?
sammy [17]
A.) average wages paid to men and women over 5 years
4 0
3 years ago
Which statement about the data is true?
Aleksandr [31]
Your correct b is the correct answer

8 0
3 years ago
Read 2 more answers
Derick studied 13 1/2 hours this week for a spelling bee. Write the number of hours as a decimal.
serg [7]

Answer:

13.5

Step-by-step explanation:

When you convert fraction numbers to decimal numbers, remember they are written like this:

whole . parts

In 13 1/2, you have 13 wholes and 1/2 parts. The decimal number would look like 13 . parts

To find the decimal for 1/2, put into your calculator <u>1 ÷ 2</u>. The answer will be 0.5 Write "5" for parts. The decimal where 0.5 is will line up with the decimal in the decimal number.

13.5

Derek studied 13.5 hours for the spelling bee.

3 0
2 years ago
Other questions:
  • Marie's watering can is initially filled with 2 litres of water. However, the watering can has a small hole in the base and is l
    6·1 answer
  • What is the prime factorization of 81 m^2x^3 ?
    11·1 answer
  • Evaluate the expression.<br> [(12 x 5) - 10] : 5
    14·1 answer
  • Sally's summer punch recipie is a combo of lemonade and fruit punch.
    11·1 answer
  • Points A (3,8) and B (-4,8 are located on a cooridinate plane. Find the distance between them.
    10·1 answer
  • The string of a kite is 100 meters long and it makes an angle of 60° with the ground. What is the height of the kite?
    12·1 answer
  • Gradient of line AB (3,7) and (5,11)​
    9·2 answers
  • Which expression is equivalent to -15x + 39?
    7·2 answers
  • Construct an equation for the expression: 3 less than 2 times a number is 7. Show the solution to the equation and prove your so
    14·1 answer
  • I desperately need help!!! Any and all help is helpful!! Thank you if you help!!​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!