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
geniusboy [140]
3 years ago
8

Pick a two-digit number greater than 25. Rewrite your two-digit number as a difference of two numbers. Show how to use the ident

ity below to square your number without using a calculator.
(x-y)^(2 )=x^(2 )-2xy+y^2
CHOOSE ONE value, A, B, or C to use for the following:
A) 47 B) 32 C) 53

Rewrite your 2-digit number as a difference of 2 numbers:
_________________________________

Use the identity above to square your number without using a calculator:
Mathematics
1 answer:
e-lub [12.9K]3 years ago
3 0

Answer:

Step-by-step explanation:

32²=(40-8)²

=40²-2(40)(8)+8²

=1600-640+64

=1664-640

=1024

also 32²=1024

You might be interested in
I need help on this question, think any of you guys could help?
levacccp [35]

Answer:

We need to find the circumference, and in order to find the circumference we must know the formula for it.

Formula for circumference of a circle;

a = 2πr

Where π is the pi(3.14 or 22/7), and r is the radius which is half of the diameter.

Since we are given the diameter, we need to find the radius. So 1/2 of the diameter (26 x 1/2) = is 13

Now we just plug in the actual values in the formula:

a = 2πr

a = 2 x 3.14 x 13

a = <u>18.84 feet</u>

But now, we need to find how many revolutions it would take to get to 500 feet.

So we divide 500 feet by 18.84 feet;

500/18.84 = 26.53, around 27 revolutions.

3 0
2 years ago
The length of a rectangle is 25
Flauer [41]
The width is 35in, the length is 95in
7 0
3 years ago
What is the smallest subset that 46 belongs to
xeze [42]

Answer:

Natural/Counting Numbers

Step-by-step explanation:

It is the smallest subset a number can classify into. It is all of the numbers from 1 to positive infinity.

7 0
3 years ago
The roller on a computer printer makes 2200 revolutions per minute. what is its angular velocity?
-Dominant- [34]
(2200 rev/min) x (360 deg/rev) x ( min/60 sec) = 13,200 degrees per second

(2200 rev/min) x (2 pi radians/rev) x (min / 60 sec) = <u>73 and 1/3 pi</u> radians/sec
8 0
3 years ago
Is x = 3 1/4 a solution to the equation 12 5/8 = x +9 1/4
navik [9.2K]

x=3 1/4 is not a solution to the equation.

12 5/8=x+9 1/4 Subtract 9 1/4 from each side 3 3/8=x, but 3 1/4=3 2/8

4 0
3 years ago
Other questions:
  • What will be <br> 50% of 42
    8·2 answers
  • Penelope is making cards for her family members. she completed 9/16 of the cards on Monday and 2/16 of the cards on Tuesday what
    11·1 answer
  • How do you Simplify 3x+5-x
    6·1 answer
  • Find the area of the triangle. Round your answer to the nearest tenth. Triangle ABC Line AB =15 yd, Line AC = 15 yd, ∠A= 48° a.
    5·1 answer
  • The graphs below have the same shape. What is the equation of the blue<br> graph?
    8·1 answer
  • Lauren is going to invest in an account paying an interest rate of 3.4%
    11·1 answer
  • Help me please, i am terrible at math
    11·2 answers
  • La mamá del profesor Ernesto tiene una bolsa con 3/4 kilogramos de arroz y guiso 2/3 de su contenido Que fracción de un kilogram
    9·1 answer
  • What is the conjugate?<br> a - square root of a - 1
    7·2 answers
  • Here is a data set ( n = 117 ) that has been sorted. 51.7 56.8 65.3 66.8 67.3 68.1 68.1 68.3 68.6 68.7 69 69 69.6 69.7 69.9 70.2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!