Answer:
x = 8
Step-by-step explanation:
AN = NC,
4x - 7 = 5x -15,
-7 = x -15,
8 = x
<h3>
Answer: 0.1319</h3>
==========================================
Work Shown:
![P(x) = (_n C_x)*(p)^x*(1-p)^{n-x}\\\\P(14) = (_{15} C_{14})*(0.8)^{14}*(1-0.8)^{15-14}\\\\P(14) = 15*(0.8)^{14}*(0.2)^{1}\\\\P(14) \approx 0.13194139533312 \\\\P(14) \approx \boldsymbol{0.1319} \\\\](https://tex.z-dn.net/?f=P%28x%29%20%3D%20%28_n%20C_x%29%2A%28p%29%5Ex%2A%281-p%29%5E%7Bn-x%7D%5C%5C%5C%5CP%2814%29%20%3D%20%28_%7B15%7D%20C_%7B14%7D%29%2A%280.8%29%5E%7B14%7D%2A%281-0.8%29%5E%7B15-14%7D%5C%5C%5C%5CP%2814%29%20%3D%2015%2A%280.8%29%5E%7B14%7D%2A%280.2%29%5E%7B1%7D%5C%5C%5C%5CP%2814%29%20%5Capprox%200.13194139533312%20%5C%5C%5C%5CP%2814%29%20%5Capprox%20%5Cboldsymbol%7B0.1319%7D%20%5C%5C%5C%5C)
Side note: you can use the nCr formula to compute
; however, it's much quicker to use the shortcut formula
. You can also use Pascal's Triangle to find the value of ![_{15} C_{14}](https://tex.z-dn.net/?f=_%7B15%7D%20C_%7B14%7D)
-1 55/100 then reduce, -1 11/20
Answer:
a. 2*-2*3=-12
b. -2*3*5 = -30
c. (-2)^2+2*5= 14
d. 2*-2+3*3-5*5= -20
e. -2(3-5) = 4
f. 3*5-(-2)*5+(-2)*3 = 19
if it helped then plz mark me as brainliest
Answer:
101, 135, 131, 99, 138, 136, 140