9 dollars
36 divided by four is 9
Answer:
the answer is 45
Step-by-step explanation:
every triangle has to add up to 180 so 25 + 45 is 70 and 70 + 110 is 180
The answer to this question is 3976%
Answer:
<h3>Q 1</h3>
<u>Sum of interior angles of a pentagon:</u>
- 4x + 60 = 180(5 - 2)
- 4x + 60 = 540
- 4x = 480
- x = 120
<h3>Q 6</h3>
<u>Midsegment is half of the sum of the bases:</u>
- (2n - 2 + 4n + 6)/2 = n + 12
- (6n + 4)/2 = n + 12
- 3n + 2 = n + 12
- 2n = 10
- n = 5
<u>Midsegment is:</u>
Correct choice is D
<h3>Q 3</h3>
- m∠1 = 90 as diagonals are perpendicular
- m∠2 = 41 as alternate interior angles
<u>∠3 is complementary with ∠2:</u>
None of the choices is correct
It's pretty clear what the pattern is - 2^(k-1) * (-1)^(k-1) would work backwards, but we have to work forwards to get lower in this case, so we could start at -3 (as long as we put the k-1 in absolute value to make sure it's not 1/8), so we could write it as ∑ (k=1, goes to 4) 2^(|k-4|)*(-1)^(k-4)
It doesn't matter for k-4 because 1/-1 and 1/1 are the same thing as -1 and 1 respectively