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3 years ago

In a standard normal distribution, the probability that z is greater than zero is

Mathematics

1 answer:

harina [27]3 years ago

7 0

Answer:

50%

Step-by-step explanation:

The distribution is symmetrical about the y-axis.

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Given that angleAXB is complementary to both angleCYD and angleFZE, and mangleAXB = 20°, what is mangleCYD + mangleFZE?

EastWind [94]

Complementary angles add up to 90 degrees. We know that AXB is 20 degrees, and AXB is complementary to CYD and FZE. So CYD and FZE are 90-20, so each angle is 70 degrees
CYD = 70 degrees
FZE = 70 degrees
CYD + FZE = 70 + 70 = 140

3 0

3 years ago

Can you guys please help me with math? (Pt 2.)

Firlakuza [10]

(0,a)

it didnt move left or right on the x-axis
it went up a units (since its half of 2a)

5 0

3 years ago

Read 2 more answers

Is the following relation a function? Yes No

Lina20 [59]

Answer:

Step-by-step explanation:

7 0

3 years ago

Estimate the values to complete the table.

lbvjy [14]

Answer:

Step-by-step explanation:

For angle C,

cos(∠C) = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$ = 0.97

sin(∠C) = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$ = 0.26

tan(∠C) = $\frac{\text{Adjacent side}}{\text{Adjacent side}}$ = 0.27

Therefore, from the triangle ABC,

cos(∠A) = cos(90° - ∠C)

= sin(∠C)

= 0.26

sin(∠A) = sin(90 - ∠A)

= cos(∠A)

= 0.97

tan(∠A) = $\frac{\text{sinA}}{\text{cosA}}=\frac{0.97}{0.26}$

= 3.73

Angle $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$ $\frac{\text{Opposite side}}{\text{Hypotenuse}}$ $\frac{\text{Opposite side}}{\text{Adjacent side}}$

A 0.26 0.97 3.73

3 0

3 years ago

Jessica makes $20 per hour. She earns a raise of 15%. How much will her new salary per hour be?

In-s [12.5K]

Answer:

$23 a hour

Step-by-step explanation:

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3 years ago