For this case we have the following equation:

We must solve the equation by following the steps below:
We subtract 1 from both sides of the equation:

On the right side of the equation we have that different signs are subtracted and the sign of the major is placed:

We add x to both sides of the equation:

We divide between 4 on both sides of the equation:

Thus, the correct option is option B
Answer:

Option B
Answer:
21
Step-by-step explanation:
s=2
so, v=2+19
19+2=21
Answer:
x = 63
Step-by-step explanation:
It's Quadrilateral so:
360-90-72= x + x +22 (Cause that 2 triangle is isosceles)
2x=126
x=63
Answer:
to do this we have to divide 43 by 83
0.51807228915
so the frequency is about 51.8%
Answer:
D
Step-by-step explanation:
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