Answer: a) Mean =
Standard deviation=
b) Mean =
Standard deviation=
c) Mean =
Standard deviation=
Step-by-step explanation:
To compute Mean and standard deviation , we use following formula:
Mean =
Standard deviation=
a.
Mean =
Standard deviation=
b.
Mean =
Standard deviation=
c.
Mean =
Standard deviation=
Answer:
The value of y = 0
Step-by-step explanation:
Given the equation
Apply exponent rule:
so
Thus, the equation becomes
Divide both sides by 1/64
Solve Exponent
Take log of both sides
Therefore, the value of y = 0
Answer:
30°
Step-by-step explanation:
<u>Angles and Quadrants:</u>
- 0° to 90° -- Quadrant 1
- 90° to 180° -- Quadrant 2
- 180° to 270° -- Quadrant 3
- 270° to 360° -- Quadrant 4
<u>Formula for Reference Angle in each Quadrant:</u>
<em> is the angle given</em>
- Quadrant 1 -- Reference Angle =
- Quadrant 2 -- Reference Angle =
- Quadrant 3 -- Reference Angle =
- Quadrant 4 -- Refence Angle =
Angle given is 150°, which according to first table, falls in Quadrant 2.
According to second table, the reference angle is found by subtracting 150° from 180°.
Reference Angle = 180° - 150° = 30°
Answer:
$19.68
Step-by-step explanation:
this is not really clearly defined.
I assume it means that they are buying the item, no matter how much it costs, and that the split ratio between them also remains the same no matter the actual cost.
x = what Marcia is paying
and 132 - 18% = 132 × (100 - 18) / 100 = 132×0.82 = 108.24
so,
x + x/2 + x/3 = 108.24
6x + 3x + 2x = 649.44
11x = 649.44
x = $59.04
Mario's part is x/3 = 59.04/3 = $19.68