X=71°
X-21=50°
X-12=59°
Add all of the angle measurements to equal 180 so the equation would look like x+x-21+x-12=180. Add all like terms and you’ll then get 3x-33=180. Next add 33 on both sides to get x by itself and then you’ll get 3x= 213. Next divide 3 on both sides to isolate x and you’ll get x=71. Substitute all values of x for 71.
Answer:
.2427
Step-by-step explanation:
If you don't need to show your work:
TI84 calculator:[2nd][vars][normalcdf][lower:2000][upper:2500][μ:1800][σ:300}[enter][enter]
Your answer would be 2,4,8
Is it multiple choice? Other wise, the variable "d" would be $63, and the variable "h" would be the 6 hours she babysat. Your equation would look something like this:
$63 = 9.5(6)
The next step would look like the following:
$63 = $57
The statement would be false. It is not true, considering that 63 is not equal to 57.