Answer:
Step-by-step explanation:
SOLUTION:
a ) Write an equation in standard form that models your earnings.
8x + 6y = $114
b ) You worked 10 hours as a hair washer. How many hours did you work as a host?
8x + 6y = $114
8x + 6 ( 10 ) = 114
8x + 60 = 114
8x = 114 - 60
8x = 54
x = 54 / 8
x = 27 / 4 hours
x = 6.75 hours
x = 6 hours and 45 minutes
Answer:
<em>550 </em><em>students are in the school.</em>
Step-by-step explanation:
The way I found my answer was by first turning<em> 74% into a decimal</em>, which is <em>0.74</em>. Then I <em>divided 407 </em>by<em> 0.74</em> and I got<em> 550</em>. Therefore, <em>550 is our answer.</em>
(g o f)(5) = g(f(5))
f(5) = 3(5) - 9 = 15 - 9 = 6
g(f(5)) = g(6) = (6)² = 36
Answer: 36
Answer:
0.9544
Step-by-step explanation:
P(-2 < Z < 2) means that Z has mean 0 and standard deviation 2.
P(−2 < Z < 2) = F(2) - F(-2)
Using the Z - table,
F(2) = 0.9772
and F(-2) = 0.0228
Thus,
P(−2 < Z < 2) = 0.9772 - 0.0228 = 0.9544
This means that data within two standard deviation is 95%.
