Answer: 12 and 13
Step-by-step explanation:
a(a + 1) = 156
(a + 13)(a - 12) = 0
a1 = -13 (Room number can't be negative so this is impossible)
a2 = 12, a2 + 1 = 12 + 1 = 13
So the room numbers are 12 and 13
Answer:
B. 23.8
Step-by-step explanation:
Use the formula c = \sqrt a^2+b^2﹣2abcosy (squareroot the whole thing)
c = length of side you are finding
a = length of side a
b = length of side b
y =angle opposite c
Answer:
<h2>
x = -2</h2>
Step-by-step explanation:
The slope of q:
It means the line q is parallel to X-axis. Therefore any line perpendicular to q is parallel to Y-axis.
Any line parallel to Y-axis is: x = x₀, where x₀ is the x-coordinate of any point the line passing through.
(-2, 3) ⇒ x₀ = -2