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
ra1l [238]
3 years ago
5

What is an efficient way to compute 47^2–37^2 without using raw calculations?

Mathematics
1 answer:
e-lub [12.9K]3 years ago
6 0

Answer:

(47+37)(47-37)

Step-by-step explanation:

47^2-37^2 is a difference of two squares. a^2-b^2 = (a+b)(a-b) so this expression can be factored to (47+37)(47-37) = (84)(10) = 840

You might be interested in
Helpppppppppppppppppppppppppppp
Oliga [24]

<u>To find the area of a complex shape</u>:

 ⇒ must split into simpler shapes

  • a rectangle of <u>8m by 7m</u>
  • a rectangle of <u>2m by 8 m</u>

<u>Now let's find</u>:

  • Area of a rectangle of <u>8m by 7m</u>

               Area=8*7=56m^2

  • Area of a rectangle of <u>2m by 8m</u>

               Area = 2 * 8 = 16m^2

<u>Total Area</u> = 56 + 16 = <u>72 m²</u>

<u>Answer: 72 m²</u>

Hope that helps!

6 0
2 years ago
Find the volume of the figure.
Andre45 [30]

Answer:

12

Step-by-step explanation:

1. Base x Height x Length

1 x 4 x 3= 12

8 0
3 years ago
Factor the following problems<br><br> -13=-4a-2b+c<br> 3=4a+2b+c<br> 5=16a+4b+c<br><br> Please Help!
Pie
1) -13 = -4a - 2b + c
 -13 = -2(2a + b) + c

2) 3 = 4a + 2b +c
  3 = 2(2a + b) + c

3) 5 = 16a + 4b + c
5 = 4(4a + b) + c

[ Final Answers are in bold ]

Hope this helps!
8 0
3 years ago
Please help please...
SpyIntel [72]

Answer:

2

Step-by-step explanation:

5(2)+2=12

(2)+4=6

5x+2 is twice the length of x+4. Therefore the answer is 2

4 0
3 years ago
Read 2 more answers
I need help on this please
Leya [2.2K]

The expression we have is:

2xy\cdot xy^2

And we are given some values for x and y:

\begin{gathered} x=2 \\ y=4 \end{gathered}

The first step will be to substitute the given values into the expression:

2(2)(4)\cdot(2)(4)^2

The next step is to solve 4^2 which is equal to 16:

2(2)(4)\cdot(2)(16)

And then we solve the multiplications, 2(2)(4) is equal to 16 and (2)(16) is equal to 32:

16\cdot32

Solving this final multiplication we get the result:

512

Answer: 512

8 0
1 year ago
Other questions:
  • A door delivery florist wishes to estimate the proportion of people in his city that will purchase his flowers. Suppose the true
    6·1 answer
  • Bhavik bought 3 liters of milk and 5 loaves of bread for a total of $11. A month later, he bought 4 liters of milk
    11·2 answers
  • Could anyone help me with this problem? I understand that you can cross multiply but is there a shorter way?
    10·1 answer
  • Solve the following equation. Determine if the equation is an "identity" or a "contradiction."
    7·1 answer
  • Plz answer both questions I have more on my hw and I’m in a rush rn
    13·1 answer
  • Tom rolls 2 fair dice and adds the results from each. Work out the probability of getting a total that is a factor of 21.
    5·1 answer
  • What is a solution for the inequality y-7&lt;-12
    5·2 answers
  • 1. Name the property the equation illustrates.
    14·1 answer
  • Match the following pair of angles with their respective definitions.<br> Pls help
    7·2 answers
  • (PLS HURRY I'LL MARK BRAINLIEST)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!