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
Tom [10]
3 years ago
9

How could you check that this is correct?

Mathematics
1 answer:
Katena32 [7]3 years ago
3 0

Answer:

Use the foil method

Step-by-step explanation:

Use foil

Front, Outer, Inner, Last

x times 2x = 2x^2

x times 1 + 2x times 3 --> 7x

3 times 1 = 3

2x^2 + 7x + 3

You might be interested in
3. Find angle q.<br> A) 90 <br> B)116<br> C)123<br> D)130
Inga [223]

Answer:

C

Step-by-step explanation:

because 180 - 58

remember the quadrilateral is between the circumference

5 0
4 years ago
100 points
Snezhnost [94]

Answer: 28\sqrt 3

Step-by-step explanation:

8 x 14 x 21 = 2352, so:

√8⋅√14⋅√21 = √2352

√2352 in simplest form is 28√3

I hope this helps!

6 0
2 years ago
What is an algebraic expression
Bond [772]
An algebraic expression is an expression that includes constants, variables, and the algebraic operations (add, subtract, multiply, divide.
4 0
3 years ago
Write an inequality for the given statement:the sum of x and 25 is less than 75
tiny-mole [99]

Answer:

x + 25 < 75; x < 50

Step-by-step explanation:

The inequality says the sum of x and 25 (written as x + 25) is less than (<) 75.

The inequality is written as: x + 25 < 75

My work for solving the inequality is in the picture.

4 0
3 years ago
A certain piece of copper wire is determined
Sati [7]

Answer:

14

Step-by-step explanation:

mass of 100 centimeters of copper wire is 2.00

so, mass of 1 centimeter of copper wire will be \frac{2}{100}

hence, 14 centimeters of copper wire will provide .28 copper

8 0
3 years ago
Other questions:
  • What is 9-4(2x-1)=45?
    14·1 answer
  • In a multiple regression equation, two independent variables are considered, and the sample size is 30. The regression coefficie
    11·1 answer
  • Between 1896—when the Dow Jones index was created— and 2012, the index rose in 65% of the years. Based on this information, and
    7·1 answer
  • There is a virus being spread among the cricket enclosure. The first day this was noticed, there were 8 sick crickets. The amoun
    11·1 answer
  • Mrs mccarthy has 2 separate 7 foot boards she needs 11 inches long how many will she have if she has 2 boards
    14·1 answer
  • Stoplight Auto Center is selling its shares for 28 3/4. What would be the cost of 90<br> shares?
    11·1 answer
  • Please help. Will mark brainliest if correct. ( links will be banned)
    12·1 answer
  • In this porportion x /5 = 15/3 which number is equal to x in the porportion
    7·1 answer
  • Can someone help me solve? 11.8=5-0.5p
    5·1 answer
  • Guys pls help with all the steps ​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!