Answer:
0.40
Step-by-step explanation:
Find the z-scores.
z = (x − μ) / σ
z₁ = (18 − 23.5) / 3.6
z₁ = -1.53
z₂ = (25 − 23.5) / 3.6
z₂ = 0.42
Use a table or calculator to find the probability.
P(Z < -1.53) + P(Z > 0.42) = 0.0630 + (1 − 0.6628) = 0.4002
The probability is approximately 0.40.
Answer:
its -3
all you gotta do is substitue the point in for x and y
x = -4
y = 7
<span>(b+3)/7=(b-3)/6
6(b+3) = 7 (b-3)....> cross multiply
6b + 18 = 7b -21 ...>distributive property
6b - 7b = -21 -18 ...>subtract 7b to both sides then simplify
-b = -39 ...> multiply -1 to both sides
b = 39</span>
9/3 or 3
slope is rise over run. or x over y.
look at your Y points... 1, 10, 19, 28, 37. They go up 9 each time, right? 1 + 9 = 10 + 9 = 19...etc.
Now, look at your X points... 0, 3, 6, 9, 12. They go up 3 each time, right? 0 + 3 = 3 + 3 = 6...etc.
Since you go up 9 for the y axis and 3 for the x axis...
9/3
The answer will have an outcome of 768 because it multiplies by 4 through out the whole sequence