Answer:
You would still divide numerator by denominator, but keep the negative, even as a decimal
Step-by-step explanation:
-5/8 = -0.625
Or another way to think about it (in that case) is dividing -5 by 8. you would end with a negative. Hope this helps!
Find the factor of the given number.
Given number = 65
=> 65 * 1
=> 5 x 13
Now, that we have the factors of 65. Let’s create the factor tree:
Factor tree shows the level of division:
Let show how:
=> 65 / 5 = 13
=> 65 / 13 = 5
=> the sum of the prime factors would be:
=> 13 + 5 = 18
The prime divisor of the factor tree 65 is 5 and 13
And the sum divisor of the factor tree 65 is 18
65
5 13
STEPS:
First distribute the 5 through the parentheses to get 5q + 135. So the problem now reads 5q + 135 - (-30) = 95.
Now, minus a negative can be changed to plus a positive so - (-30) can be changed to +30 so our equation now reads 5q + 135 + 30 = 95.
Before adding or subtracting anything from both sides of the equation, make sure you simplify the left side as much as possible. Notice that we can add 135 and 30 to get 165 so the left side simplifies to 5q + 165 = 95.
Now we can simply subtract 165 from both sides of the equation to get 5q = -70.
Now simply divide both sides of the equation by 5 to get q = -14.
For this case we have the following expression:
We must rationalize the expression, so we multiply by:
So, we have:
Thus, the correct option is option B.
Answer:
OPTION B
Answer:
B.
Step-by-step explanation:
To simplify something that looks like you would multiply the top and bottom by the conjugate of the bottom. So you multiply the top and bottom for this problem I just made by:
.
If you had , then you would multiply top and bottom the conjugate of which is .
The conjugate of a+b is a-b.
These have a term for it because when you multiply them something special happens. The middle terms cancel so you only have to really multiply the first terms and the last terms.
Let's see:
(a+b)(a-b)
I'm going to use foil:
First: a(a)=a^2
Outer: a(-b)=-ab
Inner: b(a)=ab
Last: b(-b)=-b^2
--------------------------Adding.
a^2-b^2
See -ab+ab canceled so all you had to do was the "first" and "last" of foil.
This would get rid of square roots if a and b had them because they are being squared.
Anyways the conjugate of is
.
This is the thing we are multiplying and top and bottom.
.5
.66
.7
as a fraction?