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
Ierofanga [76]
3 years ago
13

-If x+y=10 and x-Y=6 whatis value of X3-Y3​

Mathematics
2 answers:
sukhopar [10]3 years ago
8 0

Answer:

18

Step-by-step explanation:

x  + y = 10 (1)\\ x  - y = 6(2) \:   \\ 2y = 4  \:  \: ie \: y = 2 \\ x + y = 10 \\ x = 10 - 2 \\ x = 8 \\ x3 - y3 = (8 \times 3) - (2 \times 3) \\  = 24 - 6 \\  = 18

marysya [2.9K]3 years ago
7 0
Answer = 18


If you mean x times 3 and y times 3, x= 8 and y = 2 so (8*3)-(2*3)=18
You might be interested in
25 POINTS Please help me asap I will really appreciate it !
nydimaria [60]

3.  g(x) = (x+2)/ |x+2|  the denominator cannot be 0

   |x+2| cannot be 0  

x cannot equal -2

Domain all real numbers but -2

g(-1) = (-1+2)/ |-1+2| = 1/|1| = 1

4.  h(x) = (x-4)/(x^2+5x-36)

factor the denominator

h(x) = (x-4)/(x+9) (x-4)  the denominator cannot be zero  do not cancel, this is a hole

x+9 cannot equal zero so x cannot equal -9

x-4 cannot equal 0 so x cannot equal 4

Domain all real numbers but -9 and 4

h(-1) = (-1-4)/((-1)^2+5(-1)-36) = -5/(1-5-36) = -5/-40 = 1/8


5 0
3 years ago
I really need Help with this equation Please!!!!
Slav-nsk [51]

Answer:

Option D:  - 6;  $ \textbf{-5}\frac{\textbf{5}}{\textbf{2}} $;   $ \textbf{-4}\frac{\textbf{1}}{\textbf{5}} $.

Step-by-step explanation:

The sequence is defined by:

$ A(n) = -6 + (n - 1)\bigg( \frac{1}{5} \bigg ) $

To find the first term of the sequence simply substitute n = 1.

First term of the sequence:

$ A(1) = -6 + (1 - 1)\bigg( \frac{1}{5} \bigg ) $

        $ = - 6 $

Fourth term of the sequence:

$ A(2) = -6 + (4 - 1) \bigg ( \frac{1}{5} \bigg) $

        $ = - 6 + 3\bigg( \frac{1}{5} \bigg) $

        $ = \frac{- 30 + 3}{5} $

        $ = \frac{-27}{5} $

        $ = \frac{-25 - 2}{5} $

        $ = - 5 - \frac{2}{5} $

        $ = -5\frac{2}{5} $   is the required answer.

Tenth term of the sequence:

$ A(10) = - 6 + (10 - 1) \bigg( \frac{1}{5} \bigg) $

         $ = - 6 + 9\bigg( \frac{1}{5} \bigg) $

         $ = \frac{-30 + 9}{5} $

         $ = \frac{-21}{5} $

         $ = \frac{-20 - 1}{5} $

         $ = - 4 - \frac{1}{5} $

         $ = -4\frac{1}{5} $  is the required answer.

       

       

3 0
3 years ago
Tommy travel 495 miles at 45 mi/hr. How long did the trip take ?
givi [52]

Answer:

D

Step-by-step explanation:

495 / 45 = 11 hours

Option D

8 0
3 years ago
Read 2 more answers
Find the value of x for the right triangle.
pychu [463]

Answer:

x = 3

Step-by-step explanation:

take 60 degree as reference angle and using cos rule

cos 60 = adjacent/hypotenuse

1/2 = x/6

do cross multiplication

2*x = 6*1

x = 6/2

x = 3

8 0
3 years ago
Can someone find the solutions
Lera25 [3.4K]
X^2=24

Root both sides
x=±√24

Simplify the radical
x=± √2^2 *6
x=± 2√6

Final answer: A
4 0
3 years ago
Other questions:
  • What is the equation of the following graph in vertex form?
    13·1 answer
  • Write a function rule for the situation: the length l(w) of a box that is two more than four times the width w.
    7·2 answers
  • Point Q(2, −1) is rotated 90° clockwise about the origin.
    12·1 answer
  • What is -3 2/7 - -5/7?
    13·2 answers
  • Need help Pronto! Will give braintliest.
    12·1 answer
  • Which is the correct way to write the square root of 16
    10·1 answer
  • The value of a ratio
    15·1 answer
  • I just need help finding h pleasww
    5·1 answer
  • Which of the following is a quadratic equation?
    7·1 answer
  • A chocolatier makes chocolate covered cherries in the form of spheres. Amelia
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!