Mathematics, 26.01.2021 17:40 jvsome8
Landon plans to throw a penny from the roof of a building. The building is 102 feet tall, and Landon throws the penny with an initial upwards velocity of 10.4 feet per second. The penny hit the ground approximately 2.87 seconds later. Select the appropriate definition and domain for the variable x for the equation that models the height of the penny, H. Then, select the correct equation.
A. Select a definition of the variable x .
x is the number of seconds since Landon threw the penny.
x is the height of the penny in feet.
x is the number of seconds since the penny hit the ground.
B. Select the domain that best fits the situation.
0 ≤ x ≤ 2.87
x ≥ 0
all real numbers
C. Select the equation that can be used to model the height of the penny.
H = - 16 x 2 + 104 x + 102
H = - 16 x 2 + 102 x + 10.4
H = - 16 x 2 + 10.4 x + 102
Answers: 2
Mathematics, 21.06.2019 17:10
The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?
Answers: 1
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