Answer:
The value of the given expression is 84.
Step-by-step explanation:
The given expression is
The number 252 can be written as 240+12, because 24 can easily divisible by 3.
The compatible numbers are 240 and 12
Therefore the value of the given expression is 84.
Answer:
6.75
Step-by-step explanation:
Find the relationship between the trapezoids. You can see that the top of trapezoid ABFE is 3 units and the top of EFCD is 4.5 units. 3 * 1.5 = 4.5, so t the sides of trapezoid EFCD are 1.5 times more than the sides of ABFE.
Now, you know the bottom of ABFE is 4.5, so the bottom of EFCD is 1.5 times longer because they are proportional, so you can do 4.5 * 1.5 = 6.75 units.
Like the last question, tackle it the same way.
The first number should be n
The second number (n+2)
The third number (n+4)
Add them all together. Simplify this amount to:
3n + 6 = 84
3n = 78
n = 26
Thus the least number is 26, then comes 28, then 30.
(a−b)(a(2)+ab+b(2))
=(a+−b)(a(2)+ab+b(2))
=(a)(a(2))+(a)(ab)+(a)(b(2))+(−b)(a(2))+(−b)(ab)+(−b)(b(2))
=2a2+a2b+2ab−2ab−ab2−2b2
=a2b−ab2+2a2−2b2
Answer:
always
Step-by-step explanation: