Range I think I may be wrong ?
Answer:
12.56
Step-by-step explanation:
The formula of a circle's circumfernce is C = d pi
so we know that r = 2 and d = 2r
d then = 2 * 2 = 4
4 * pi (taking 3.14) = 12.56
therefore circumfernce = 12.56
Answer:
1:D
2:A
3:C
4:E
5:B
Step-by-step explanation:
A negative exponent will be when you move the decimal point to the left. A positive exponent will be moving the decimal point to the right.
The number of the exponent is how many times you will move the decimal point.
Once you graph the equation, you will notice that the lines are actually the exact same. If they’re the exact same your answer must be...
C. Infinitely Many
40% of 15 L = 6 L of acid
20% of 25 L = 5 L of acid
This means the mixture contains a total of 11 L of acid, and with a total volume of 15 L + 25 L = 40 L, that means the mixture is at a concentration of
(11 L acid) / (40 L solution) = 0.275 = 27.5%
