Answer:
7x=42°
8x=48°
Step-by-step explanation:
Sum of all interior angles in a triangle=180°
90+8x+7x=180
90+15x=180
15x=180-90
15x=90
x=90/15
x=6
Answer:
15%.
Step-by-step explanation:
<h3>Answer for problem 7 is B) Kelly</h3>
Since she has the most heads come up, making her chances to be best of getting heads.
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<h3>Answer for problem 8 is D) Jessica</h3>
Divide each of the four values (102, 164, 75, 139) by 250 to get
102/250 = 0.408
164/250 = 0.656
75/250 = 0.300
139/250 = 0.556
We see that Jessica's empirical probability of 0.556 is closest to that of 1/2 = 0.500 which is the theoretical probability of getting heads.