Answer:
b is 10 degrees and a is 64 degrees.
Step-by-step explanation:
Properties of a parallelogram needed for this problem: Opposite angles are congruent and adjacent angles are supplementary, meaning they add to 180 degrees.
This means that in the picture, 2a and 12b+8 are equal, while 2a and 5b+2 are supplementary.
From this we can make two equations:
2a=12b+8
and
2a+5b+2=180
If we subtract 5b+2 in the second equation, both equations will equal 2a. I'll explain why that's good. We end up with:
2a=12b+8
and
2a=180-5b-2
Now, we can set the two equations equal to each other because they both equal the same thing. Then simplify.
12b+8=180-5b-2
17b=170
b=10
Knowing b is 10 degrees, we can easily plug that back into one of our original two equations. I'll choose 2a=12b+8.
2a=12(10)+8
2a=120+8
2a=128
a=64
b is 10 degrees and a is 64 degrees.
18/30=?/100
18 times 100 = 1800
1800 divided by 30
60%
A) 2.6, 3.31, 3.46, 3.49
b) 0.52, 0.59, 0.71, 0.77
c) 6.8, 6.82, 6.9, 6.97
d) 5.199, 5.2, 5.212, 5.219
e) 32.4, 32.42, 32.441, 32.448
f) 9.03, 9.08, 9.7, 9.901, 9.99
The answer is x^2+14x+49=0 the answer to it is -7
The answer is 9.5 so the remainder would be 5
