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Montano1993 [528]
2 years ago
7

7 multiplied by 5 multiplied by 2 whole over 7 multiplied by 3, the whole raised to the power of 2 multiplied by 5 to the power

of 0 over 2 to the power of negative 3, whole to the power of 3 multiplied by 2 to the power of negative 9 solve
Mathematics
1 answer:
Nezavi [6.7K]2 years ago
4 0
It is bassicaly zero
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The answer is b to be sure
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A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackth
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Complete Question

A set of magical wand prices are normally distributed with a mean of 50 dollars and a standard deviation of 4 dollars. A blackthorn wand has a price of 45.20. What proportion of wand prices are lower than the price of the blackthorn wand? You may round your answer to four decimal places

Answer:

0.1151

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = $45.20

μ is the population mean = $50

σ is the population standard deviation = $4

We are solving for x < 45.20

Hence:

z = 45.20 - 50/4

z = -1.2

Probability value from Z-Table:

P(x<45.20) = 0.11507

Approximately to 4 decimal places = 0.1151

Therefore, the proportion of wand prices that are lower than the price of the blackthorn wand is 0.1151

8 0
2 years ago
Solve:<br><br> three and two fourths plus five and four elevenths equals blank
kvv77 [185]

1 5/8

Trust me :)

If it's wrong then sue me instead :D

7 0
2 years ago
Emma went to a salon to get her hair cut. The price of the haircut is $65. She wants to leave a 20% tip. What is the total amoun
Alina [70]

Answer:

$78

Step-by-step explanation:

$65 x 1.20 = $78

or

$65 x 0.20 = $13

$65 + $13 = $78

8 0
3 years ago
Can anyone help with what the formula to calculate the volume of a Rhombohedron (3D Rhombus) is? Could you also give me an examp
Elza [17]

Answer: the formula is : β = 180° - α

A = 6 * a² * sin(α)

V = a³ * (1-cos(α)) * √1+2cos(α)

Sorry, i don't know any examples .

Step-by-step explanation:

4 0
2 years ago
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