One way is ellimination metahto where we add
add them together
x+y=-2
<u>2x-y=5 +
</u>3x+0y=3
3x=3
divide by 3
x=1
subsitute
x+y=-2
1+y=-2
subtract 1
y=-3
answer
x=1
y=-3
answer is in form (x,y) and is (1,-3)
<u />
Answer:
{-8,-6.-2,8}
Step-by-step explanation:
we have

Evaluate f(x) for different values of x
For
-----> 
For
-----> 
For
-----> 
For
-----> 
therefore
The range is equal to
{-8,-6.-2,8}
Answer:
(a) x= 0,1,2..........10
(b) p=0.02
(c) standard deviation = 0.44
(d) p=0.18
Step-by-step explanation:
Detailed Explanation of answer is given in attached file.
Answer:
Read below.
Step-by-step explanation:
Wrong:
(2.5 x 10^9) + (5.3 x 10^8) =
(2.5 + 5.3) x (10^9 x 10^8)
=
7.8 x 10^7=
7.8 x 10,000,000=
780,000,000
<u>Bold is edited by me</u>
Correct:
(2.5 x 10^9) + (5.3 x 10^8)=
(2.5 x 1,000,000,000)+(5.3 x 100,000,000)=
2,500,000,000+5,300,000,000=
7,800,000,000
The problem is that whoever wrote it swapped the numbers in the parentheses, added a pair of them together and multiplied the other pair. You are not supposed to take out the pairs and swap them if you'd like or the answer is incorrect. Second mistake is that
is not
I do not know how and where you got that answer from.