S=πr²=8²π=64π(in²)
...................
Answer:
The two expression to represent area is (5 x - 10) sq. units or 5( x- 2) sq. units
Step-by-step explanation:
Here, the length of the rectangle = (x-2) units
The width of the rectangle = 5 units
Now, AREA OF A RECTANGLE = LENGTH x WIDTH
So, here AREA = 5 ( x- 2)
= (5 x - 10) sq. units
( as by Distributive property: A (B-C) = AB - AC)
Hence, the two expression to represent area is (5 x - 10) sq. units or 5( x- 2) sq. units
Answer:
1/2b - 5 (the third one)
Step-by-step explanation:
"Denni is five years less..."
this tells us we will need to be subtracting five, which knocks out the other answers.
"..one-half his brothers age."
since b represents the age of his brother, one half his brothers age is 1/2b
That leaves us with 1/2b - 5
You could write it as a fraction (3/4) or you could say "3 to 4".
I think i need a bit more information but assuming if this is what you are looking for:
to write 50,000 in exponent form look for its multiples other than 1 and itself and then go from there.
This is what i general do, i pick a divisible number and keep dividing till i get to one.
50,000/2 = 25,000
25,000/5 = 5,000
5,000/10 = 500
500/10 = 50
50/10 = 5
5/5 = 1
so i divided by 2, 5,10, 10, 10, and 5 (three 10s, two 5s and one 2)
then i look if these numbers can be written in smaller divisible numbers (i.e. 10 is 2 and 5)
so 2, 5, (2,5), (2,5) ,(2,5), and 5 as you can see that cannot be divided into smaller numbers so we have thus five 5s and four 2s
therefore 50,000 = 5^5 x 2^4
hope this helps :P
(P.S. it is the best way i can explain online without a whole course on this)
