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
prohojiy [21]
3 years ago
5

How would the expression x^2-7 be rewritten using Difference of Squares? please someone help me.

Mathematics
2 answers:
77julia77 [94]3 years ago
4 0
The correct answer for this question is this one: x^2 - sqrt(7) ^ 2

So, how were we able to get that answer.
The question asked us to have an equation of difference of squares.
That means, it is in the form of
a^2 - b^2

Since, the given equation has
x^2 - 7, so we need to have something that is equal to seven

7 = sqrt(7)^2
<span>
</span>
kondor19780726 [428]3 years ago
3 0
Every difference of squares problem can be factored as follows: a2 – b2 = (a + b)(a – b) or (a – b)(a + b). So, all you need to do to factor these types of problems is to determine what numbers squares will produce the desired results.
expression x^2-7 be rewritten using Difference of Squares
x^2 -(sqrt(7))^2
You might be interested in
Please help me with my algebra homework thank you
kumpel [21]

Answer:

a.) 5x

b.) 6xy

c.) 6xy

Step-by-step explanation:

5 * x = 5x

6 * x * y = 6xy

2 * x * 3 * y = 6xy

7 0
2 years ago
Read 2 more answers
Can somebody please
ArbitrLikvidat [17]

Answer:

Step-by-step explanation:

4ox-16=4[10x-4]this is because 4 is the common factor in both 40and 16

16x-24x-4±12=4[4x-6x-1±3]

-8x-8=8[-1-1]

3 0
3 years ago
PLEASE HELP!!! WILL GIVE BRAINLIEST!!!
Tamiku [17]
It is a it is symmetric on both sides and it’s peak is at 3
7 0
3 years ago
Read 2 more answers
Find the minimum sample size needed to estimate the percentage of Democrats who have a sibling. Use a 0.1 margin of error, use a
Brums [2.3K]

Answer:

The minimum sample size is  n  =135

Step-by-step explanation:

From the question we are told that

   The confidence interval is ( lower \ limit  = \  0.44,\ \ \   upper \ limit  = \ 0.51)

    The margin of error is  E =  0.1

   

Generally the sample  proportion can be mathematically evaluated as

     \r p = \frac{ upper \ limit  + lower \ limit }{2}

    \r p = \frac{ 0.51 + 0.44}{2}

    \r p = 0.475

Given that the confidence level is  98% then the level of significance can be mathematically evaluated as

         \alpha = 100 -  98

        \alpha = 2\%

        \alpha =0.02

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table  

   The value is

        Z_{\frac{\alpha }{2} } =  2.33

Generally the minimum sample size is evaluated as

      n  =[ \frac { Z_{\frac{\alpha }{2} }}{E} ]^2 *  \r p (1- \r p )

     n  =[ \frac { 2.33}{0.1} ]^2 *  0.475(1- 0.475 )

     n  =135

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%28%5Cfrac%7B7%7D%7B2%7D%5E%7B2%7D-%5Cfrac%7B3%7D%7B4%7D%5E%7B1%7D%29%2A%5Cfrac%7B1%7D%7B3%7D"
KIM [24]
The answer is = 7 11/12
7 0
3 years ago
Read 2 more answers
Other questions:
  • I don't even know where to start on this problem?
    12·1 answer
  • What is the unit and unit rate for $7.96 5 pounds
    12·1 answer
  • A moving box one meter wide 1/2 meter long and 3/4 meter tall how many cubic meters can the Box hold?​
    5·1 answer
  • There are 20 students in your class 3/5 of them pack a lunch which meant that will help you find the number of students in your
    7·1 answer
  • Any recommendations for anime?​
    10·2 answers
  • The area of a duck enclosure is 300 square feet, with 100 square feet occupied by a pond. Each duck in the enclosure needs more
    12·1 answer
  • A large bag of marbles contains red (R) and blue (B) marbles. Marbles are pulled one at a time, recorded, and placed back in the
    11·1 answer
  • Can someone pls help me with this?
    11·1 answer
  • Factor 16xy^2-24y^2z+40y^2
    7·1 answer
  • REWARD: 50 points + Brainly to the best answer.<br> Check the file.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!