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Oliga [24]
3 years ago
7

Can someone help me with something please and thank you

Mathematics
1 answer:
ICE Princess25 [194]3 years ago
6 0
To find a common denominator you have to find a number that both can be divided by in this case, 15. So both can be set to 15. However the numerators must also be changed. Since 15 divided by 5 is 3, the numerator 2 should be multiplied by 3 to get 6. Then since 15 can be divided by 3 to 5, you multiply 5 to the numerator 1 to get 5.

Then do
6/15 - 5/15 to get 1/15
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a basketball team needs to score more than 795 total points this season to set a new record. the team has already scored 165 poi
loris [4]
They would need to win approximately 12 more games. just use division to find out your answer

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3 years ago
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Daniel [21]

Answer:

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Step-by-step explanation:

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3 years ago
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Scores from an exam are normally distributed with a mean of 85 and a standard deviation of 5. Suppose 188 students take the exam
charle [14.2K]

The mean is \mu=85 and standard deviation is \sigma=5. Then the variable X\sim N(85,5).

Use substitution Z=\dfrac{X-\mu}{\sigma}=\dfrac{X-85}{5}, then the variable Z\sim N(0,1).

The probability Pr(X>80) can be calculated in the following way:

for X=80, Z=\dfrac{80-85}{5} =-1 and Pr(X>80)=Pr(Z>-1). From the diagram Pr(Z>-1)=0.34+0.34+0.135+0.025=0.84.

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4 0
3 years ago
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Y = (x) = (1/16)^x<br> Find f(x) when x = (1/4)
Naddik [55]

Answer:

1/2

Step-by-step explanation:

(1/16)^x

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(1/16)^ 1/4

Rewriting 16 as 2^4

(1/2^4)^ 1/4

We know that 1 / a^b = a^-b

(2 ^ -4)^ 1/4

We know that a^b^c = a^(b*c)

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2^-1

We know that  a^-b = 1/ a^b

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NemiM [27]

Answer:

p<7

Step-by-step explanation:

$5 per pound

7 pounds equals $35

$5p<$35

p<35/5

p<7

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