Answer:
The answer is 1&2
Step-by-step explanation:
1.) and documentary is one of the best resource if you have nothing. but if all else fails talk to a doctor they will help you.
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Answer:
-8xy+3x+2z
x+3yz-8
Step-by-step explanation:
Answer:
In order to evaluate a function, replace the input variable (the number or expression given) (place holder, x). Replace the x by the number or word.
Step-by-step explanation:
Answer:
Step-by-step explanation:
(a + b)²=a²+2ab+b²
(3x+3y)²= (3x)²+2*3x*3y+(3y)²
=9x² + 18xy + 9y²
=9x² + 9y² + 18xy
= 9*(x²+y²) +18xy
=9*25 + 18*12
=225 + 216
=441
Answer:
<u>The two numbers are 25 and 15.</u>
Step-by-step explanation:
Let's find out the two numbers, this way:
x = first number
y = second number
This is the equations system:
x + y = 40
x - y = 10
Solving for x in the first equation:
x + y = 40
x = 40 - y
Solving for y in the second equation:
40 - y - y = 10
40 - 2y = 10
-2y = 10 - 40
-2y = - 30
<u>y = -30/-2 = 15</u>
Solving for x:
x + y = 40
x + 15 = 40
x = 40 - 15
<u>x = 25</u>
<u>The two numbers are 25 and 15.</u>
