Answer:
b = -4 and 0
Step-by-step explanation:
Using the distance formula
D = √(x2-x1)² + (y2-y1)²
√8 = √(b-2)² + (3-1)²
√8 = √(b-2)² + 2²
Square both sides
8 = (b-2)² + 2²
8 = (b-2)² + 4
8 - 4 = (b-2)²
4 = (b-2)²
Square root both sides
±√4 = b- 2
±2 = b - 2
b = -2 - 2 and b = -2 + 2
b = -4 and 0
This gives the values of b
The average speed = total distance ÷ total time traveled
The average speed = [500+400] ÷ [10+8]
The average speed = 900 ÷ 18 = 50 miles/hour
Q-R/S first you write the difference so difference is subtraction, then you put that over S showing you are dividing the two.
Answer:
0.3 = 30% probability that it is blue.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question:
10 marbles, 3 of which are blue.
So
p = 3/10 = 0.3
0.3 = 30% probability that it is blue.