Answer:
48 degrees
Step-by-step explanation:
<u>1) Solve for x</u>
Complementary angles add up to 90 degrees. Therefore, m<A + m<B is equal to 90:
Open up the parentheses
Subtract 20 from both sides
Divide both sides by 5
Therefore, x is equal to 14.
<u>2) Determine angle A</u>
Substitute x with 14
Therefore, the measure of angle A in degrees is 48 degrees.
I hope this helps!
Answer:
30 x 24 = 720
720 / 2 = 360
<u>360 inches squared</u>
Let the nth term be given by the expression an²+bn+c.
We can write A: -7=a+b+c B: -6=4a+2b+c C: -3=9a+3b+c
D: B-A: 1=3a+b
E: C-B: 3=5a+b
E-Dm 2=2a, a=1, b=1-3=-2, c=-7-1+2=-6.
So the expression for the nth term is n²-2n-6.
Put n=4: 16-8-6=2 which fits the sequence.
Put n=5: 25-10-6=9 which also fits the sequence.
So the nth term is