Answer:
x =19.2
y=29.8
Step-by-step explanation:
We will use the law of sines to solve this problem
sinA sin B
----------- = -------------
a b
sin 55 sin 40
--------- = ---------------
24.5 x
Using cross products
x sin 55 = 24.5 sin 40
Divide by sin 55
x = 24.5 sin 40 / sin 55
x =19.22512011
To one decimal place
x =19.2
To find the angle opposite y, we know the three angles of a triangle add to 180
y = (180-40-55) = 85
sin 55 sin 85
--------- = ---------------
24.5 y
Using cross products
y sin 55 = 24.5 sin 85
Divide by sin 55
y = 24.5 sin 85 / sin 55
y =29.79516474
To one decimal place
y=29.8
(x)+(x+1)+(x+2)=-36
3x+3=-36
3x=-39
x=-13
The numbers are -13, -12, -11
By the empirical rule, 84% of the distribution is below one standard deviation above the mean.
16% of Ed's monthly phone bills are more than $76.
Recall that a relationship is a function ONLY IF for each input (x-) value there is exactly one corresponding y value. More than that? Then the relationship is not a function. That applies to the first and the third relations given here.
The second relationship is a function.
Step-by-step explanation:
1) = 4ab
2) 12a2b
3) 8ab2
4) 6ab2
5) 12abc
6) 6ab2c
7) 16a2bc
8) 27abc
