Equation for density is mass/volume
Mass=22.62 g
Volume= 22/7 x 1/2^2 x 4
3.14 x 0.5 x 0.5 x 4
=3.14 cm3
Mass/ Volume
22.62/3.14
7.2 g/cm3 is the answer
The formula for exponential growth is written as y = a(1 + RATE)^time
where a is the starting value, rate is the percentage of growth written as a decimal and time in this case would be the number of days.
You are given the growth rate as 11% and the starting day was day 1.
Since the table only goes to 10 days, you can use 10 as the time, or use X as an exponent if you need to calculate more than 10 days.
Using all this information, the formula becomes y = 1(1.11)^10 for 10 days or y = 1(1.11)^x for any number of days needed.
2v = <-10, 4>
4u = <-24, 4>
-4u = <24, -4>
-4u + 2v = <24, -4> + <-10, 4> = <14, 0>
Answer:
12
Step-by-step explanation: Because 12 old dolls - 6 dolls = 6 dolls. Then you add 6 old dolls and 6 new dolls and you get 12 old and new dolls. Sorry if this is confusing. I tried to make it less confusing.