<span>–(2n + 4) + 6 = –9 + 4(2n + 1)
-2n - 4 + 6 = - 9 + 4*2n + 4*1
</span>
<span>-2n - 4 + 6 = - 9 + 8n + 4
Take all the n's to one side and numbers to the other side. Sign changes to + or - when equality sign is crossed to other side of equation.
</span>
<span>-2n - 8n = - 9 + 4 + 4 -6
-10n = -7
n = -7/-10
n = 7/10 or 0.7
</span>
Answer:
7
Step-by-step explanation:
Let's say our sum is s.
s = 10 right angles
a right angle is 90 degrees
s = 10 (90)
s= 900
Given the amount of sides in a polygon (n), the sum of the interior angles is equal to
(n-2) * 180
Therefore, the sum of the interior angles is equal to
(n-2) * 180 = 900
divide both sides by 180 to help isolate n
n-2 = 5
add 2 to both sides to isolate n
n = 7
Answer: 6x + 24
Explanation: In this problem, the 6 "distributes" through the parenthses, which means that it multiplies by each of the terms inside.
So we have 6(x) + 6(4) which simplifies to 6x + 24.
Answer: Brian & Derek will earn $25 If they sell 8 and 12.
Step-by-step explanation:
Answer:
∴ The measure of the remainder of the circle = 248°
Step-by-step explanation:
∵ The measure of the circle = 360°
∵ The measure of the minor arc = 112°
∴ The measure of the remainder of the circle = 360 - 112 = 248°
