Answer:
-6
Step-by-step explanation:
1) distribute: 7x+28+6x-18=8x-24-2x+8
2)combine like-terms: 13x+10=6x-32
3)move the variable to one side: 7x+10=-32
4)subtract 10 from both sides: 7x=-42
5) divide each side by 7: x=-6
Answer:
4:
a.) 49x^2-36y^2
b.) 9a^2-25b^2
c.) 1/25x^2-49
5: b.) -5x^2-4xy+4y^2
Step-by-step explanation:
Answer:
8.9
Step-by-step explanation:
Let X be the actual dimension for the Length
The ratio is 2/43
2/43 = x/129,
43x = 384,
x= 384/43,
<u><em>~8.9</em></u>
(4)2 + 7= 15.
15-7=8.
I would say that number is 4 because 4+4= 8, and 8+7 =15.
Step-by-step explanation:
When dividing by 10,000, shift the decimal place 4 places to the left.
4509 => 0.4509
4,509/10,000 = 0.4509.