Answer:
A:∑j=15(2j−5)
Step-by-step explanation:
a = -3
d = -1 - (-3) = -1 + 3 = 2
j-th term: a + (j-1)d
-3 + (j - 1)(2)
-3 + 2j - 2
2j - 5
X + y = 54
x - y = 10
Add them to get: 2x = 64
x = 32
and plugging in x = 32 to either eqn: y = 22
Ans: the numbers are 22 and 32
Answer:
52°
Step-by-step explanation:
By remote interior angle theorem of a triangle:
115° = 63° + x° ( x is the vertical angle of one interior angle of the triangle)
x° = 115° - 63°
x° = 52°
x = 52
-135 is his current balence because you would times 160 3 times and subtract that from 345