Answers:
1. A.Complementary
2. C. Neither
3. B. Supplementary
4. Z= 128
Why?
The angles for #1 equal 90. For 2 it is not either option. 3 equals 180 and for 4 is 180-52 and you get 128
8 is the hypotenuse and x is the adjacent side to the 60-degree angle. This means that you would need cosine (adjacent over hypotenuse) or secant (hypotenuse over adjacent). Cosine is not an option so it's secant.
sec 60 degrees = 8/x
Next, in a 30 60 90 triangle, you know that the side lengths are 1, 1/2 and sqrt(3)/2. So the secant of 60 degrees is 1 divided by 1/2 which is 2.
So the answer is the first question: x = 4
Answer:
Step-by-step explanation:
Solution
This (after combining the top 2 fractions, is a 4 tier fraction.
1/4*3/4 = 3/16
So the question now becomes 3/16 ÷ 10/3
The rule for such a question is invert (turn up side down) the second fraction and multiply.
3/16 * 3/10 Combine
(3*3)/(16* 10)
9 / 160
0.05625
Answer:
I think 14n + 9
Step-by-step explanation:
since she got her first email in 9 days and got her second email 14 days later, and it continues to appear every 14 days.
so I think it must be 14n + 9
