5x-2y = -10
Multiply by 6
= 30x -12y=-60
3x+6y = 66
Multiply by 2
= 6x+12y = 132
So
30x-12y=-60
6x+12y=132
Add those variables
36x= 72
X= 2
This would help
When adding and subtracting with exponents....combining like terms....exponents are not added/subtracted...but coefficients are.
example : 2b^2 + 3 + 3b^2 = 5b^2 + 3
but keep in mind, they have to be like terms to be able to add and subtract them...for instance 2b^2 + 3b^3...u cannot add/subtract them because they are not like terms.
Answer:
incorrect because the square area would be 440
Step-by-step explanation:
Answer:
4.4 x 10^9
Step-by-step explanation:
(8.8 x 10^6)(5 x 10^2)
Multiply the 8.8 and 5
8.8 x 5 = 44
Add the powers (don't touch the 10s)
6 + 2 = 8
Right now we have: 44 x 10^8 but this isn't in scientific notation. The decimal must have a SINGLE digit to the left of it; no more no less.
Move the decimal over one place to the left.
44 turns into 4.4
This action adds another power
8 + 1 = 9
Thus our final answer is: 4.4 x 10^9
Answer:
millions
Step-by-step explanation:
Its millions because the 4 is hundred thousands