Answer:
n = 11
Step-by-step explanation:
The side length of a triangle are n,n-3 and 2(n-2).
The perimeter of the triangle, P = 37 units
We need to find the value of n.
Perimeter = sum of all sides
n+n-3 +2(n-2) = 37
2n-3+2n-4 = 37
4n -7 = 37
4n = 37+7
4n = 44
n = 11
So, the value of n is 11.
Answer:
228mm^2
Step-by-step explanation:
Answer:
31°
Step-by-step explanation:
Angle KLN and Angle MLN equal 160° as said in the directions.
So 2y° + (3y + 5)° = 160° –– Combine like terms
5y + 5° = 160° ––Subtract 5 from both sides
5y° = 155° –– Divide both sides by 5 to get y alone
y = 31°
Answer:
B. 3
Step-by-step explanation:
16 : 4 = 12 : |GD|
4=12 : |GD|
|GD| = 12 : 4 = 3, Answer is B
She didn’t multiply -1/4 by 12 in order to get -1/4x + 3 = -1
which would change her answer, because then you have to subtract 3 from -1 and get -4. Then divide -1/4 & get 16. It changed to positive because of the division & multiplication rule with two negative numbers.
Hope this helps.
