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
Makovka662 [10]
4 years ago
14

3m2+7=55 answer please

Mathematics
1 answer:
kenny6666 [7]4 years ago
6 0
3m^2+7=55\ \ \ |-7\\\\3m^2=48\ \ \ |:3\\\\m^2=16\to m=\pm\sqrt{16}\\\\m=-4\ \vee\ m=4
You might be interested in
How do you solve 17 = 11y + 12x 12x + 11y = 14 in subsitution method?
Zolol [24]
You add 11y to 11y and 12x to 12x. then you have 17=22y+ 24x=14
                                                                               -14                  -14 
14 cancels out.                                                         3=22y+24x

                 
8 0
4 years ago
Read 2 more answers
Explain how you could use proportional reasoning to determine the number of quarts in 2 1/2 gallons
nataly862011 [7]
There are 4 quarts in a gallon 
Set up the proportion

x/4 = 5/2
4 0
3 years ago
What is the sign of the larger absolute value
Anna11 [10]
> this is the sign for the larger absolute value
8 0
3 years ago
Graphing question for Algebra
Andre45 [30]
You graph the answers according to the coordinate grid for example (4,6) you would graph that on the coordinate grid on that
7 0
4 years ago
Rob is two times as old as Jake. Three years ago the sum of their ages was 21 years. Find their present ages?
spin [16.1K]
Rob is 18
Jake is 9

21-15=6
6+3=9
9x2=18
(No clue how I got 15 )
8 0
4 years ago
Read 2 more answers
Other questions:
  • The time to complete a project is inversely proportional to number of people who are doing the project. A certain project can be
    15·1 answer
  • What factors do 8 and 12 have in common​
    15·1 answer
  • the perimeter of an isosceles triangle in which the equal sides measures 12cm each and third side is 8cm_____. please show the w
    5·1 answer
  • Marco is 6 feet 3 inches tall. There are 2.54 centimeters in 1 inch. What is Marco's height in centimeters?
    8·2 answers
  • Which of the following is the fastest unit rate ( 1 mile = 1,760 yards = 5,280 feet)
    10·2 answers
  • How can you solve X^2 +2x=-1
    12·1 answer
  • Fill the blank space in the pattern.<br> 1,5,25,-,625
    13·1 answer
  • Mario the marriage celebrant is interested in investigating the average age at which people who attended university get married.
    7·1 answer
  • A car was on sale for
    6·1 answer
  • Eva bought popcorn, candy and a drink at the movies. The popcorn was three times as expensive as the candy and the drink was twi
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!