Answer:
part a: 1/2, two red, probability is 1/2
part b: 450, 150 times 3 =450, hope it helps
please make me brainliest
Answer:
area of figure = area of rectangle + area of triangle
area of rectangle= length × width
6×4
24yd²
area of triangle= 1/2×base×height
1/2×3×4
3×2
=6yd²
area of figure= 24+6
= 30yd²
Answer:![43.54 ft^3/min](https://tex.z-dn.net/?f=43.54%20ft%5E3%2Fmin)
Step-by-step explanation:
Given
Thickness of oil slick=0.07 foot
radius of slick=110 ft
![\frac{\mathrm{d} r}{\mathrm{d} t}=0.9 ft/s](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cmathrm%7Bd%7D%20r%7D%7B%5Cmathrm%7Bd%7D%20t%7D%3D0.9%20ft%2Fs)
Let V be the volume of oil slick
so, ![V=0.07\pi \cdot r^2](https://tex.z-dn.net/?f=V%3D0.07%5Cpi%20%5Ccdot%20r%5E2)
rate of oil flowing is
![\frac{\mathrm{d} V}{\mathrm{d} t}=0.07\times 2\pi \cdot r\frac{\mathrm{d} r}{\mathrm{d} t}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cmathrm%7Bd%7D%20V%7D%7B%5Cmathrm%7Bd%7D%20t%7D%3D0.07%5Ctimes%202%5Cpi%20%5Ccdot%20r%5Cfrac%7B%5Cmathrm%7Bd%7D%20r%7D%7B%5Cmathrm%7Bd%7D%20t%7D)
![\frac{\mathrm{d} V}{\mathrm{d} t}=0.07\times 2\pi \times 110\times 0.9=43.54 ft^3/min](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cmathrm%7Bd%7D%20V%7D%7B%5Cmathrm%7Bd%7D%20t%7D%3D0.07%5Ctimes%202%5Cpi%20%5Ctimes%20110%5Ctimes%200.9%3D43.54%20ft%5E3%2Fmin)
Step-by-step explanation:
b+133=180
b=180-133
b=47
a+71+40=180
a+111=180
a=180-111
a=69
c+64=180
c=180-64
c=116
140=d+47
140-47=d
d=93
e+47+47=180
e+94=180
e=180-94
e=86