9514 1404 393
Answer:
Step-by-step explanation:
Let d represent the number of dimes Molly has. Then she has 18-d nickels, and the total value (in cents) of her coins is ...
5(18 -d) +10d = 105
5d +90 = 105 . . . . . . simplify
5d = 15 . . . . . . . . . . . subtract 90
d = 3 . . . . . . . . divide by 5; number of dimes
18-d = 15 . . . . . number of nickels
Molly has 3 dimes and 15 nickels.
The formula for the surface area of a right cylinder is 2πrh + 2πr^2. r is the radius, and h is the height.
In this instance, the radius is 4, so plug that in for r. (I.E. Replace r with 4).
The formula is now 2π4h + 2π4^2.
Next, plug in the height, 8 for h.
Now we have 2π4(8) + 2π4^2, which is approximately 301.59.
The surface area is 301.59. (Unit of measure was not specified)
Hey Braniac! Thanks for your question! Don't forget to rate and give me the brainliest answer! Then, I can help you with all your problems! ^-^ ~
Sorry i can't graph it over here because i dont have a coordinate plane but the answer is going to be infinitely many solutions.<span />
9514 1404 393
Answer:
D. the midline is 2
Step-by-step explanation:
The maximum is the largest value of the function: 5. (not 2)
The minimum is the smallest value of the function: -1. (not -2)
The amplitude is half the difference of the minimum and maximum: (5-(-1))/2 = 3. (not 2)
The midline is the average of the minimum and maximum: (5-1)/2 = 2.
