17x+3x+2x+16+7
The simplified one should be 22x+23
12*5 is 60. So the hose was originally 60 feet.
Answer:
Step-by-step explanation:
√x - 7 = 3 {add 7 to bothe sides}
√x - 7 + 7 = 3 + 7
√x + 0 = 10
√x = 10
Square both sides,
(√x)² = 10²
x = 100
1st night Nickel - 5 pennies
2nd night 5 nickels - 25 pennies
3rd night 14 nickels - 70 pennies
4th night 30 nickels - 150 pennies
5th night 46 nickels
6th night 78 nickels
7th night 126 nickels
8th night 206 nickels
9th night 334 nickels
10th night 542 nickels
So her mother would give Kim 542 nickels on the 10th night.
Differences between number of nickels: 4, 9, 16
9 - 4 = 5
16 - 9 = 7
The pattern is Kim's mom gives her child two more nickels plus the amount of nickels she got the day before.
This was a little tricky so I don't know if this is right but I hope this helps you!
Answer:
The circumference is 98.39 centimeters (rounded to 2 decimal places)
Step-by-step explanation:
The area of a circle has the formula 
The circumference of a circle has the formula 
First, let's find r from area given:

Now, we can use this value of r and plug in into the formula for circumference. Shown below:

The circumference is 98.39 centimeters (rounded to 2 decimal places)