13.47 divided by 3 is 4.49. so each yard costs 4.49
Answer:
an= -3 an + 9 a
Step-by-step explanation:
The first value in series is 6 a.
When we put n=1 in equation an=-3 a(1) +9 a
=6 a
The second term is having value of 3 a in the series.
When we put n=2 in equation an=-3 a(2) +9 a
=3 a
And so on,
So, an=-3 an +9 a
Answer:
m∠6 = 90°
Step-by-step explanation:
∠1 and ∠2 are a linear pair. This means they are supplementary, or their measures sum to 180°. To find m∠2, we subtract m∠1 from 180:
180-140 = 40°
The measure of ∠2 is 40°.
The sum of the measures of the angles in a triangle is 180°. We have ∠2 and ∠3; to find the measure of ∠6, we subtract these two from 180:
180-(40+50) = 180-90 = 90°
Answer:
27
Step-by-step explanation:
y = kx, where k is the constant of proportionality. If x = 2 and y = 6, that constant is determined as follows:
6 = k(2), or k = 3. Then y = 3x. When x = 9, y = 27
