Answer:
I am pretty sure it would be c
Step-by-step explanation:
~Hello There!~
19. You can use Pythagoras to figure out the missing length of the triangle
√15² - 9² = 12
(12 x 9)/2 = 54
((20 + 32) / 2) x 9 = 234
234 + 54 = 288
That's what i got ^^ Not 100% sure if its correct
20. 8 + 3 + 6 + 3 = 20
20/4 = 5
Mean = 5
Hope This Helps You!
Good Luck :)
Have A Great Day ^_^
- Hannah ❤
Answer:
Step-by-step explanation:
Mean weigth is 3.8
standard deviation 15 =0.5
sd2 =15*(sd₁₅ )²
sd=(15*0.25)^0.5
sd=1.94
z=(3.8-4)/((0.5)/15^0.5)
z=-1.55
p=0.060571
0.060571>.05
true mean weight is less than 4 ounces
test statistic= (sample mean-mean)/((sd of sample)/n^0.5)
test statistic=(3.8-4)/((0.5)/15^0.5)
test statistic=-1.55
Answer:
x^2 - x + 18
Step-by-step explanation:
f(x) = x^2+9
g(x) = x-9
Therefore f(x)-g(x),
= x^2 + 9 - (x - 9)
= x^2 + 9 - x +9
<h2>= x^2 - x + 18</h2><h2 /><h2 /><h2><u><em>
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