For a standard normal distribution, the expression that is always equal to 1 is P(z≤-a)+P(-a≤z≤a)+P(Z≥a). This expression represents all of the possible values in a curve, or in other words, the total area of a curve. According to standard normal distribution, the total area of a curve is always equal to 1.

8 0

3 years ago

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Which ordered pair is a solution of this

Stells [14]

Answer:

(-1,-2)

Step-by-step explanation:

I graphed the equation on the graph below so you can see that (-1,-2) is a solution.

6 0

3 years ago

Heeeeeeeeeeeelllllpppppp

Tatiana [17]

Answer:

ST is equal to TS because they are both the same line, just vertically flipped over the y-axis. Triangle RST is equivalent to Triangle UTS because they have the same area. (Rectangle cut into two equal-sized triangles)

7 0

3 years ago

Answer all of these for 100 points

KiRa [710]

Answer:

Step-by-step explanation:

37) Take two point from the line.

(2 , 0) & (0,4)

$Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{4-0}{0-2}\\\\=\frac{4}{-2}\\\\=-2$

Slope = (-2)

38) (7 , 0) & (3 , 2)

$Slope = \frac{2-0}{3-7}\\\\=\frac{2}{-4}\\\\=\frac{-1}{2}$

39) The line is parallel to x-axis and so its slope is 0

Slope = 0

40) The line is parallel to y-axis and so its slope is undefined

Slope = undefined

8 0

3 years ago