Answer:
Step-by-step explanation:
y=4x+2
x+2y=22
x+2(4x+2)=22
x+8x+4=22
9x+4=22
9x=18
x=2
y=4(2)+2
y=8+2
y=10
(x,y) -> (2,10)
Answer:
Option D
Step-by-step explanation:
To check whether (-2,2) is a solution to the system, let us substitute these values and check.
A. 3x − y = −4
5x − y = −8
3(-2)-2=-8 is left side not equal to right side.
B. 3x − y = −4
5x + y = −8
Since I equation is not satisfied not the matching system
C.3x + y = −4
5x − y = −8
I equation gives 3(-2)+2=-4
5(-2)-2 =-12
Since I equation is not satisfied not the matching system
Since II equation is not satisfied not the matching system
D. 3x + y = −4
5x + y = −8
3(-2)+2=-4
5(-2)+2=-8
Thus D is the system which has solution (-2,2)
Answer:
4 to the second power = 16. that leaves us with 16 - 2 ( 3 x 5 + 1). next, multiply 3 x 5 = 15. that leaves us with 16 - 2 ( 15 + 1 ). next, add 15 + 1 = 16. that leaves us with 16 - 2 ( 16 ). next, multiply 2 ( 16 ) = 32. finally, subtract 16 - 32 = -16
Step-by-step explanation:
your answer is -16. hope this helps
Answer:
the mean is 8 and the absolute deviation is 1.5
Step-by-step explanation:
to find the mean you add up all the numbers, then you just divide by how many numbers there are. in this case, you would do 64/8 which would then equal 8. then you see how much the numbers differ from the mean. like for your numbers, for 8 it would be 0, for 9 it would be 1, for 7 it would be 1, for 6 it would be 2. you see it? its just how far away it is from the mean. so once you do that, you should have a 6. then you do 6/4 which is 1.5. hope this helps!
