Answer:
There are 60 marbles in the bag
Step-by-step explanation:
The total number of marbles times the probability of red marbles = number of red marbles
total * 7/10 = 42
Multiply each side by 10/7
total * 7/10 * 10/7 = 42*10/7
total
60
There are 60 marbles in the bag
First find the height of the triangle using the Pythagorean theorem:
Height = √(14^2 - 7^2)
Height = √(196 - 49)
Height = √147
Height = 7 √3
Now find the volume of the cone:
Volume = PI x r^2 x H/3
Volume = 3.14 x 7^2 x 7√3/3
Volume = 621.8177 cubic cm's.
Round the answer as needed.
Answer: 248.80 miles ( Approx)
Step-by-step explanation:
Let A shows the initial position of the plane, B shows the position of plan after traveling at an angle of 40° north of east at 110 mph for 2 hours and C represents the final position of plan.
Then According to the question,
miles ( because plane traveled for 2 hours with the speed of 110 mph)
miles ( Because plane traveled for 1/2 hour with the speed of 50 mph)
Now, ( shown on diagram)
Thus, By cosine law,
Thus, the plane is 248.80 miles from its starting point.
Answer:
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