U have an arithmetic sequence with a common difference of 3
A(n) = -4 + (n-1) * 3
Answer:
Step-by-step explanation:
Cosine of an angle:
The cosine of an angle, in a right triangle, is the length of the side adjacent to this angle divided by the hypotenuse.
Length of the largest side:
The length of the largest side is 41, that is, the hypotenuse is 41. The hypotenuse is XW.
WY = 9.
This means that the length of the adjacent side to angle W is 9.
What ratio represents the cosine of ∠W?
Adjacent side has length 9, hypotenuse has length 41. So
Answer:
The answer would be transitive property
Step-by-step explanation:
Step-by-step explanation:
17. 2(a+3b)-3(4a+b)
2a+6b-12a-3b
2a-12a+6b-3b
-10a+3b
correct answer is B.-10a+3b
18. simplify (,3a³-7a²+a)+(-6a³+4a²+8)
3a³-6a³-7a²+4a²+8+a
-3a³-3a³+a+8
correct answer is D. -3a³-3a³+a+8