Step-by-step explanation:
2×2 + 8x + 26 =0
4 + 8x + 26 =0
4 + 26 = 0-8x
30 = 8x
divide both sides by th coefficient of x
30

=<em>3.75</em>
Average speed = 24 3/4 / 1 1/2 = 99/4 / 3/2 = 99/4 x 2/3 = 16 1/2 miles per hour.
Answer:
2.5
Step-by-step explanation:
1st Quartile (Q1): 1
2nd Quartile (Q2): 2
3rd Quartile (Q3): 3.5
IQR = Q3 - Q1 = 3.5 - 1 = 2.5
Step-by-step explanation:
there are 2 girls
total of 5 people
probability is 2/5 which is 0.4 and 40%