Step-by-step explanation:
Let n be the number of nickels that Casey has.
We are told that Megan has 4 times as many nickels as Casey has, therefore, the number of nickels that Megan has will be 4*n.
Now we will add the amounts of nickels that Casey and Megan have to find the total amount of nickels.
Therefore, the expression 
will represent the total number of nickels that Casey and Megan have .
Upon combining like terms we will get,
Therefore, Casey and Megan have 5n nickels.
Answer:
<h3>H. 150 ft</h3>
Step-by-step explanation:
Given the height of a golf ball in feet modelled by the formula h(t) = -16t² + 100x where t is in seconds, we are to find the height of the golf after 2.5 seconds. To do that we will simply substitute t = 2.5secs into the formula given;
Hence the height of the golf after 2.5 seconds is 150ft.
Answer:
Look below! Make brainliest as well please!
Step-by-step explanation:
The way to find a slope is with this equation: (y2-y1)/(x2-x1). So in this case, we do (-1-2)/11-(-3)) and we get (-3)/11+3 which equals (-3)/(14). If you can simplify, make sure to!
A = 3b Divide both sides by 3
= b Switch the sides so it's easier to read
b =
2.5 and 3.5 are two standard deviations from the mean, since 2.5 = 3 - 2(0.25) and 3.5 = 3+2(0.25).
The empirical (68-95-99.7) rule says that approximately 95% of a normal distribution falls within two standard deviations of the mean.
