Answer:
The correct answer is B) the mean will decrease and the median will stay the same.
Step-by-step explanation:
This is true because the mean is the average, which is all of the values added together and then divided by the number of teachers. Reducing anyone's salary will reduce the mean.
The median stays the same since she was already the lowest (or tied for the lowest) paid in the group. Therefore, the middle term (the median) is unchanged.
Answer:
a. 2.25 km
Step-by-step explanation:
the scale on a map means how many units in the mapp corresponds to how many units in reality.
in this case
1 cm on the map = 75000 cm in reality =
= 75000/100 m = 750 m =
= 750/1000 km = 0.75 km
3 cm = 3×1 cm = 3 × 0.75 km = 2.25 km
Karla spent $1500 to make the shirt and will lose $150 if she sells only 90 t-shirts.
<h3>What is an
inequality?</h3>
An inequality is an expression that shows the non equal comparison of two or more numbers and variables.
Let t represent the number of t-shirts she needs to sell in order to make a profit. Since:
t > 100 and the price is $15 per shirt, hence:
Money spent = $15 * 100 = $1500
Money lost in sell 90 shirts = (100 - 90) * 15 = $150
Karla spent $1500 to make the shirt and will lose $150 if she sells only 90 t-shirts.
Find out more on inequality at: brainly.com/question/24372553
Answer:
Step-by-step explanation:
Given
initial Velocity(u)=44 ft/s
ball initial height =4 ft
as launch angle is not given so considering ball is hit vertically upward
![v^2-u^2=2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%3D2as)
where u =initial velocity
v=final velocity
a=acceleration
s=distance traveled
![0-44^2=2\times (-32.2)\cdot s](https://tex.z-dn.net/?f=0-44%5E2%3D2%5Ctimes%20%28-32.2%29%5Ccdot%20s)
![s=\frac{44^2}{2\times 32.2}=30.06 ft](https://tex.z-dn.net/?f=s%3D%5Cfrac%7B44%5E2%7D%7B2%5Ctimes%2032.2%7D%3D30.06%20ft)
time taken to reach 30.06 ft
![v=u+at](https://tex.z-dn.net/?f=v%3Du%2Bat)
![0=44-32.2\times t](https://tex.z-dn.net/?f=0%3D44-32.2%5Ctimes%20t)
![t=1.36 s](https://tex.z-dn.net/?f=t%3D1.36%20s)
total distance to reach ground=4+30.06 ft=34.06 ft
![s=ut+\frac{at^2}{2}](https://tex.z-dn.net/?f=s%3Dut%2B%5Cfrac%7Bat%5E2%7D%7B2%7D)
![34.06=\frac{32.2\times t^2}{2}](https://tex.z-dn.net/?f=34.06%3D%5Cfrac%7B32.2%5Ctimes%20t%5E2%7D%7B2%7D)
![t^2=2.115](https://tex.z-dn.net/?f=t%5E2%3D2.115)
t=1.45 s
Set ' D ' is the only set of numbers that can be the
lengths of a triangle's sides. A, B, and C can't.