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What is the median from the following set of data:1,2,3,3,3,8,8,11,15?

raketka [301]

Answer:

3

Step-by-step explanation:

The median is the # in the middle, and since 3 is used 3 times, it´s the most used # and is in the middle

4 0

3 years ago

Read 2 more answers

To rent a certain meeting room a college charges a reservation fee of $43 an additional fee of $8.70 per hour. The history club

Gekata [30.6K]

We have an initial value of $43 and every hour the price of the reservation increases $8.70, then, the function that determinates the price for the meeting room is

$P(t)=43+8.7t$

The history club have a limit value that is $77.80, then, to find the amount of hours they can spend at the meeting room we just need to solve the following inequality:

$77.8\ge43+8.7t$

Solving for t:

$\begin{gathered} 77.8\ge43+8.7t \\ 34.8\ge8.7t \\ 4\ge t \end{gathered}$

The maximum amount of hours they can spend in the meeting room is 4 hours.

4 0

1 year ago

A soccer player kicks a rock horizontally off a 31.0 m high cliff into a pool of water. If the player hears the sound of the spl

OLga [1]

Answer:

initial speed given to the rock is v= 147.46 m/s

Step-by-step explanation:

Since the player kicks the rock horizontally , then its initial vertical speed is always vy₀=0 and thus the time to hit the pool is independent of the speed given to the rock . t is calculated through

0 = y + vy₀*t - 1/2*g*t² = y+ 0 - 1/2*g*t²

then

t = √(2*y/g) = √(2*31 m/ 9.8 m/s²) = 2.515 s

when the rock hits the water , the sound wave travels diagonally a distance D and is heard by the player. the distance D is

D= v sound * T

the time the sound wave travels is T= 3.6 s - 2.515 s = 1.085 s and v sound= 343 m/s

then

D= v sound * T = 343 m/s* 1.085 s = 372.155 m

since the distance D is also

D= √(x² + y²)

then the horizontal distance x is

x= √(D² - y²)= √[(372.155 m)² - (31 m)²] = 370.861 m

since the rock hits the water at t = 2.515 s , the horizontal velocity of the ball ( and thus the initial speed given to the ball since there is no acceleration in the horizontal direction if we depreciate air friction)

v=x/t = 370.861 m/2.515 s = 147.46 m/s

4 0

3 years ago

How many solutions for x does the following equation have?

Luba_88 [7]

The answer would be D. Infinite

5 0

3 years ago

What type of model should be used to make a prediction from the given data? (0,3), (2,4), (5,5), (10,6)

mojhsa [17]

I would say a Coordinate Grid.

5 0

4 years ago