Answer:
D. 15x10^20
Step-by-step explanation:
The rule for scientific notation is that the coefficient has to be between 1 and less than 10. This means there is only one digit in front of the decimal. 15x10^20 should be written as 1.5x10^21 to follow the rule.
Answer:
Hey there!
e15 times 10^20 isn't written in scientific notation. For a number to be in scientific notation, the leading number must be between 1 and 10.
Let me know if this helps :)
Answer:
(x^2+8) ( y+4)
Step-by-step explanation:
x^2y + 8y+ 4x^2 +32
Splitting into two groups
x^2y + 8y+ 4x^2 +32
Factor y out of the first group and 4 out of the second group
y( x^2+8) + 4(x^2+8)
Factor out (x^2+8)
(x^2+8) ( y+4)
Answer:
(x^2+4)(y+3)
Step-by-step explanation:
x^2y+4y+3x^2+12
factor by grouping
=x^2y+4y + 3x^2+12
left. right
take common in left y and in right 3
=y(x^2+4) + 3(x^2+4)
now common term is (x^2+4)
=(x^2+4) (y+3) answer
B) 1/18
C) 1/7
Answer:
The answer would be A 1/15.
Step-by-step explanation:
The answer is 1/15 because you have 10 marbles in all and 3 of those 10 marbles are white. You get 3/10 and than since it does not say that it was replaced you take one white marble away which would give you 2/9. so you take 3/10 * 2/9 = 1/15 (when everything is simplified)
Hope this helps to explain it! :)