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
jenyasd209 [6]
3 years ago
6

Can someone work this out ? thank you

Mathematics
1 answer:
Anna11 [10]3 years ago
7 0

Answer:

Step-by-step explanation:

(x + y)² - (x - y)² = 4xy

t = a² - b²

= (√8+2)²-(√8-2)²                    (here, x = √8 & y = 2}

=4*√8*2

=8√8

=8√2*2*2

=8*2√2

=16√2

You might be interested in
A coat originally costs $75. It is on sale for $52.50. What percent is the discount?
Sliva [168]

Answer:

The discount percentage on the coat = 30%

Step-by-step explanation:

Here, the original cost of the coat = $75

The sale price of the same coat = $52.50

Now, here DISCOUNT = ORIGINAL PRICE - SALE PRICE

= $75 -  $52.50 =  $22.50

⇒The discount amount on the coat = $22.50

\textrm{Discount Percentage} = \frac{\textrm{Discount}}{\textrm{Original Price}} \times 100\\=\frac{22.50}{75}  \times 100 =  30

⇒The discount percentage on the coat = 30%

3 0
3 years ago
What is the difference of the fractions? Use the number line to help find the answer.
rjkz [21]

hope that this answers your problem !

To solve this question, we first need to layout the equation

-2 1/2 -(-1 3/4)

Step 1

-2 1/2-(-1 3/4) ... Equation

Step 2

5/2-(-1 3/4) ... Converted to improper fraction

Step 3

5/2-(-7/4) ... converted to improper fraction

Step 4

5/2--7/4 ... Got rid of parenthesis

Step 5

-3/4 ... Subtract

Answer:

-3/4 ... Answer

So the answer for this problem is C, -3/4

4 0
2 years ago
Not sure how to do this
OLEGan [10]
It's pretty simple! So it looks like you are learning proportions. You would cross multiply to achieve your answer. 

First, let's do your first problem: 

2     12
--- = ----
5       n 

You would take 5 and multiply it by 12 and get 60! Then you would do the same with 2 times n, giving you 2n (because you do not know what n represents YET.) 

Now you should have this:
60=2n OR 2n=60

We must isolate our variable, in order to do that, get rid of two! But how? You would do this by dividing 2n by 2. Yet in equations, when you do something to one side, you must do it to the other because they must be EQUAL! (hence the "equa-" in equation) 

2n=60
---   ---
2      2  DIVIDE 2 into 60
----------
n= 30   Simplify! 

Your final answer for the first question is n= 30! 



8 0
3 years ago
Can someone help me with question 2
Sunny_sXe [5.5K]
You just have to add I think
7 0
3 years ago
5.62 as a mixed number in simplest form
Andrej [43]
5.62 would be 5 62/100 then you can simplify the fraction down
62/100 - 31/50 
5 31/50
Hope I helped :)
6 0
3 years ago
Read 2 more answers
Other questions:
  • Order of operations:<br><br> 2 • {390 – [5 • (10 – 4 ÷ 2)] + 15} • 2
    7·2 answers
  • H(x)=5x-10 find the inverse
    8·1 answer
  • Jake is riding a skateboard down a ramp that is in the shape of a right triangle. The ramp has a height of 5 feet and a base of
    7·1 answer
  • 7 divided by 3 with the exponent of 2
    10·1 answer
  • Find the slope of the line that contains (6, 2) and (6,-3).
    13·1 answer
  • What is the answer to this math question?
    10·1 answer
  • HELP ITS TIMED WILL MARK BRAINLIEST!!<br><br> 16x^2+169=0
    12·1 answer
  • Complete the equation of the line through (-1, 6) and (7, -2).<br> Use exact numbers.
    13·1 answer
  • Help with what you can over due please help I will give brainliest thx peeps :) have a nice night lol
    10·1 answer
  • In the diagram, a circle centered at the origin, a right triangle, and the Pythagorean theorem are used to derive the equation o
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!