Factor the expression.
3(128j+3)
Answer:
The answer is D.
Step-by-step explanation:
It is given that Gabriella swims 2 laps for 1 minute. So in order to find how many minutes did he swim for each lap, you have to divide it by 2 :
2 laps = 1 minute
2 laps ÷ 2 = 1 minute ÷ 2
1 lap = 1/2 minute
= 30 seconds
Test :
Gabriella swim 1/2 min per lap. So if he swim 2 laps, you have to multiply it by 2 :
1/2 × 2 = 1 minute
Answer:
The correct solution is "0.127128".
Step-by-step explanation:
The given values are:
p = 0.31
n = 20
Now,
![p(8](https://tex.z-dn.net/?f=p%288%3Cx%3C12%29%3Dp%28x%3D9%29%2Bp%28x%3D10%29%2Bp%28x%3D11%29)
![=20C_{9}(0.31)^9\times (0.69)^{11}+20C_{10}(0.31)^{10}\times (0.69)^{10}+20C_{11}\times (0.31)^{11}\times (0.69)^{9}](https://tex.z-dn.net/?f=%3D20C_%7B9%7D%280.31%29%5E9%5Ctimes%20%280.69%29%5E%7B11%7D%2B20C_%7B10%7D%280.31%29%5E%7B10%7D%5Ctimes%20%280.69%29%5E%7B10%7D%2B20C_%7B11%7D%5Ctimes%20%280.31%29%5E%7B11%7D%5Ctimes%20%280.69%29%5E%7B9%7D)
![=0.074955+0.037043+0.015130](https://tex.z-dn.net/?f=%3D0.074955%2B0.037043%2B0.015130)
![=0.127128](https://tex.z-dn.net/?f=%3D0.127128)