You can only add like terms
exg
you can addd
2+4
2x+4x
2x^2+4x^2
2x^3+4x^3
but not
2+4x
2x^2+2x^3
so when adding like terms keep the exponent
4x+2x=6x
4x^3+2x^3=6x^3
(7x^2+4x-7)+(4x^2-6x+4)
get rid of the parenthasees
7x^2+4x-7+4x^2-6x+4
group like terms (x^2 with x^2 x with x, etc)
(7x^2+4x^2)+(4x-6x)+(-7+4)
add like terms
11x^2-2x-3
Ok, what is $0.1369 rounded to the nearest cent?
100 cents make a dollar which means the most possible cents not making a dollar is 99 cents
So that means you leave the first two decimals alone and focus on the last two.
What is 69 closer to? 70 or 60? Well, its larger than 65 which is the halfway point so its closer to 70
Is 70 closer to 0 or 100? Well, since 70 is past the halfway point which is 50, its closer to 100.
Think of 3 as 0 and the next number up which is 4 as 100, well, since 70 is closer to 100 than 0, its closer to 4.
So That means that 0.1369 rounded to the nearest cent is $0.14
Your answer rounded is $0.14
It's a similar triangle so the ratios of corresponding sides should be equal which means
BC/EF = AB/DE
21/14 = AB/10
AB = 21/14 * 10 = 15 cm
Answer:
156 cm^2
Step-by-step explanation:
area of a paralelogram is Base times hieght
13 times 12
