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2 years ago

if you roll a 12-sided die - numbered 1-12 - what is the probability of rolling a number divisible by 4?

Mathematics

2 answers:

Natali [406]2 years ago

8 0

30% I belive because 1/3 of this will be divisible by 4

grandymaker [24]2 years ago

5 0

Answer:

3/12

25%

Step-by-step explanation:

Only 3 numbers 1-12 are divisible by 4

3/12 as a percent is 25%

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Answer:

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Step-by-step explanation:

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2 years ago

Which expression is equivalent to the following complex fraction? 3/x-1 -4/2-2/x-1

slega [8]

Answer:

Step-by-step explanation:

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2 years ago

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3600 dollars is placed in an account with an annual interest rate of 5.5%. To the nearest year, how long will it take for the ac

Lynna [10]

Answer:

14.44

Step-by-step explanation:

The formula says

A=p(1+r)^t

A 7800

P 3600

R 0.055

T ?

7800=3600(1+0.055)^t

7800/3600=(1.055)^t

Log(7800/3600)= t × log(1.055)

T=log(7800/3600)/log(1.055)

T= 14.44 years

7 0

2 years ago

Find the values of the measures shown when each value in the data set increases by 25. Mean: 109 Median: 104 Mode: 96 Range: 45

Vikki [24]

Answer:

The new values are as follows:

Mean: 134

Median: 129

Mode: 121

Range=45

Standard Deviation=3.6

Step-by-step explanation:

When a k real number is added to all the elements of the dataset, the new measures of center (mean, median, and mode) are simply found by adding the value k to the previous values. Thus

$Mean_{new}=Mean_{old}+k$

Here $Mean_{old}$ is 109 and k is 25 thus

$Mean_{new}=Mean_{old}+k\\Mean_{new}=109+25\\Mean_{new}=134$

Similarly

$Median_{new}=Median_{old}+k$

Here $Median_{old}$ is 104 and k is 25 thus

$Median_{new}=Median_{old}+k\\Median_{new}=104+25\\Median_{new}=129$

Also

$Mode_{new}=Mode_{old}+k$

Here $Mode_{old}$ is 96 and k is 25 thus

$Mode_{new}=Mode_{old}+k\\Mode_{new}=96+25\\Mode_{new}=121$

When a k real number is added to all the elements of the dataset, the new measures of variation (range and standard deviation) remain the same thus.

$Range_{new}=Range_{old}\\Range_{new}=45$

Similarly

$Standard\ Deviation_{new}=Standard\ Deviation_{old}\\Standard\ Deviation_{new}=3.6$

So the new values of mean, median, mode, range, and standard deviation are 134, 129, 121, 45, and 3.6 respectively.

4 0

2 years ago

Jake has a 34% batting average. If Jake gets up to bat 10 times in one game, what is the BEST estimate of how many times he will

miss Akunina [59]

Answer:

Approximately 3 times, Jake will be able to hit the ball in a game of 10 balls

Step-by-step explanation:

Batting average determine the % share of time the bat hit the ball.

Jake's probability of hitting a ball = 0.34

Jake plays 10 games.

Probability of hitting a ball in a game is

10 * 0.34 = 3.4

Approximately 3 times, Jake will be able to hit the ball in a game of 10 balls

5 0

2 years ago