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
vitfil [10]
3 years ago
12

Please help! Thank you!!

Mathematics
2 answers:
Anna11 [10]3 years ago
5 0
It’s the first option ;)
AysviL [449]3 years ago
3 0
Yes I agree first question
You might be interested in
Find the value of X if H is the midpoint of JG, GJ equals 4X -6 and GH equals 27.
kupik [55]

Answer:

27

Step-by-step explanation:

7 0
3 years ago
(i) Write the expansion of (x + y)² and (x - y)². (ii) Find (x + y)² - (x - y)² (iii) Write 12 as the difference of two perfect
zaharov [31]

Answer:

1a (x + y)² = x² + 2xy + y²

1b. (x - y)² = x² - 2xy + y²

2. (x + y)² - (x - y)² = 4xy

3. 4² – 2² = 12

Step-by-step explanation:

1a. Expansion of (x + y)²

(x + y)² = (x + y)(x + y)

(x + y)² = x(x + y) + y(x + y)

(x + y)² = x² + xy + xy + y²

(x + y)² = x² + 2xy + y²

1b. Expansion of (x - y)²

(x - y)² = (x - y)(x - y)

(x - y)² = x(x - y) - y(x - y)

(x - y)² = x² - xy - xy + y²

(x - y)² = x² - 2xy + y²

2. Determination of (x + y)² - (x - y)²

This can be obtained as follow

(x + y)² = x² + 2xy + y²

(x - y)² = x² - 2xy + y²

(x + y)² - (x - y)² = x² + 2xy + y² - (x² - 2xy + y²)

= x² + 2xy + y² - x² + 2xy - y²

= x² - x² + 2xy + 2xy + y² - y²

= 2xy + 2xy

= 4xy

(x + y)² - (x - y)² = 4xy

3. Writing 12 as the difference of two perfect square.

To do this, we shall subtract 12 from a perfect square to obtain a number which has a perfect square root.

We'll begin by 4

4² – 12

16 – 12 = 4

Find the square root of 4

√4 = 2

4 has a square root of 2.

Thus,

4² – 12 = 4

4² – 12 = 2²

Rearrange

4² – 2² = 12

Therefore, 12 as a difference of two perfect square is 4² – 2²

7 0
3 years ago
If f(x) and its inverse function, f–1(x), are both plotted on the same coordinate plane, what is their point of intersection?
Daniel [21]
The Answer is D. (3,3) :)
8 0
3 years ago
Read 2 more answers
Juan got on an elevator at the middle floor of a building, went up 4 floors, down 3 floors, up one floor, down 9 floors, where h
xenn [34]
There are 14 floors in the building, because since Juan went up 4 floors, down 3 floors, and up one floor; so we know that he is 2 floors above from where he originally started. Once he went down 9 floors he passed the starting point and went to the bottom of the building. So, the middle must have been the 7th floor. Once I knew that I multiplied 7*2 and it got me 14. So in total there are 14 floors. I hope this helped ^^
5 0
3 years ago
W+3 /3 = -4<br> Solve what (W) = <br> Im having trouble solving this can someone help <br> Thanks :)
poizon [28]

Answer:

w = - 15

Step-by-step explanation:

Assuming you mean

\frac{w+3}{3} = - 4 ( multiply both sides by 3 to clear the fraction )

w + 3 = - 12 ( subtract 3 from both sides )

w = - 15

5 0
3 years ago
Read 2 more answers
Other questions:
  • I need help with this one answer
    15·1 answer
  • Help me the ones marked in red.
    12·1 answer
  • A candy maker mixed marshmallows worth $1.80 a pound with rice crisipes worth $3.20 a pound to make 50 pounds of a rice crispie
    13·1 answer
  • What is the midpoint of a line segment with the end points (-6 -3) and (9 -7)
    13·1 answer
  • The fraction 12/20 express in its simplest form is:
    14·2 answers
  • Help plz:)))I’ll mark u Brainliest !!!!
    13·2 answers
  • Find the value of x.<br> 25<br> 39
    12·1 answer
  • PLEASE HELP IT'S DUE IN 15 MINUTES!! WILL GIVE BRAINLIEST!!!!
    7·1 answer
  • Go follow my insta (emily.handley)
    11·2 answers
  • Find the inverse of each function. Is the inverse a function? f(x)=2/3 x-3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!