87
You can add up the angles that are labeled(73,110,and 90 because of the right angle) and get 273.
For a quadrilateral, all of the angles add up to 360.
So, subtract 360-273.
You get 87.
Hope this helps:)
This would be easy if you made more sense out of the question.
Answer:

Step-by-step explanation:
Explicit Geometric Formula: 
a₁ is 1st term
<em>r</em> is common ratio
<em>n</em> is term number
Step 1: Find common ratio <em>r</em>
r = 10/2 = 5
Step 2: Plug variables into formula

The probability of not surviving a head-on car accident is: 0.903
Step-by-step explanation:
The probabilities of occurrence and non-occurrence of an event add up to one.
If p is the probability that an even will happen and q is the probability that it will not happen
Then

Here,
Probability of surviving = p = 0.097
Probability of not surviving = q = ?

The probability of not surviving a head-on car accident is: 0.903
Keywords: Probability, Inverse
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