So first you distribute the negative to the 6x and 13 which will flip the sign of both of them to -6x and -13 so take away the parentheses and the equation is now 7x-6x-13. You combine the x’s and you get 1x-13 or x-13
Answer:
The answer to this question is: B [-2√5]
Step-by-step explanation:
First, Find both numbers that can accommodate with each of the radicals.
√20
10 and 2
5 and 2 and 2
√80
10 and 8
5 and 2 and 4 and 2
5 and 2 and 2 and 2 and 2
After this is what they'll look like.
√5,2,2 - √5,2,2,2,2
Group numbers of pairs
√5,<u>2,2 </u>- √5,<u>2,2</u>,<u>2,2</u>
<u>For every pair, bring out the #'s, but only one survives, and comes out.</u>
2√5 - 4√5
= -2√5
This is your answer! Hope this helped!
Answer:
Step-by-step explanation:
Given
Represent point A as thus;
Required
Determine the new position of A, when rotated counterclockwise
The new position will be denoted as A'
When a point is rotated counterclockwise, we start by switching the positions of x and y as follows:
Then, y is negated to give A'
Subtract 20 from both sides to get -3x = 155. Divide both sides by -3. X = -51 2/3
To figure out this problem you need to find the area of the cylinder A= pi r^2 *h
Then find the area of the cone 1/3*pi*r^2 *h
Subtract the two answers