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
Alecsey [184]
1 year ago
9

If x2+y2 = 12 and x2-y2=18, what is the value of x4-y4?

Mathematics
1 answer:
nataly862011 [7]1 year ago
6 0

Answer:

Step-by-step explanation: add the equations

2x² = 30

x² = 15

y² = 12 - 15

    = -3

x4 -y4 = 15² - (-3)²

           = 216

You might be interested in
P
Sindrei [870]

Answer:

where is the diagram

4 0
3 years ago
An isosceles trapezoid is a quadrilateral with two congruent legs and a pair of parallel bases. Prove the base angles of an isos
Finger [1]
When the sides are congruent (same direction and size), and the two opposite sides are parallel, the angles are the same. In an isosceles triangle, two angles are congruent, because two sides are congruent. 
3 0
3 years ago
Read 2 more answers
A cone has a volume of 300 units3, and a cylinder has a volume of 100 units3. Is it possible that the cylinder and the cone have
erma4kov [3.2K]

Answer:

MMHGJHBMHMB

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
May I please have help with 2-14 even on this ? I'm horrible at math.
Vilka [71]
2. x = 1/4 ( 0.25)
4. y = 122, x = 42  
6. x = 63, y = 8
8. is missing
10. 13.5 cm
12. x = 10.6
14. x = 5.45
6 0
3 years ago
Someone explain to me what y=mx+b please
antoniya [11.8K]
Y=mx+b is The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
8 0
3 years ago
Read 2 more answers
Other questions:
  • A wedding ring costs £13000. Work out the price after a 11% increase
    7·2 answers
  • Please help m e : " )
    11·2 answers
  • Solve |x|&gt;3 <br> A.{-3,3}<br> B.{x|x&lt;-3 u x&gt;3}<br> C.{x|x&lt;-3Ωx&gt;3}
    7·1 answer
  • What is the gcf and lcm of 12,42
    6·1 answer
  • Guys I need help! I am given two chances to get this question right!
    6·1 answer
  • What is the value of x?<br>24​
    5·1 answer
  • su ling started an art project with 1 yard of felt. she used to 2/6 yards on Tuesday and 3/6 yards on Wednesday. how much felt d
    9·2 answers
  • If vw=vu find m w I need the answer to this
    14·1 answer
  • The graph of a 4th-degree polynomial is shown. How many real zeros does this function have?
    7·2 answers
  • Which of the following terms correctly describe the object below?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!