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Anestetic [448]
3 years ago
12

What is the interquartile range of 1.3,2.7,4.5,3.5,1.5,3.7,2,2.4,3.1,2.7

Mathematics
1 answer:
swat323 years ago
6 0

Step-by-step explanation:

To find the IQR you need to find the median and the subtract the 3rd quartile from the 1st

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Bob has 4 times as many stickers as Tina. How many stickers does Bob have in terms of x?
kumpel [21]

Answer:

4x

Step-by-step explanation:

Let the number of Tina's stickers = x

So, Bob will have 4 times as many as Tina's = 4x stickers

Hope it helps you out!!

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The amount of time it takes an ice cube to melt varies inversely to the air temperature. At 30 degrees Celsius, the ice will mel
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hope this helps A block of ice melts in 2.5 hours when the temperature is 54 degrees.

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Write a number that has a zero in the tens place draw a quick picture for your number
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3 years ago
Simplify the rational expression. State any restrictions on the variable n^4-11n^2+30/ n^4-7n^2+10
djyliett [7]
To factor both numerator and denominator in this rational expression we are going to substitute n^{2} with x; so n^{2} =x and n ^{4} =  x^{2}. This way we can rewrite the expression as follows:
\frac{n^{4}-11n^{2} +30 }{n^{2}-7n^{2} +10 } =  \frac{ x^{2} -11x+30}{ x^{2} -7x+10}
Now we have two much easier to factor expressions of the form a x^{2} +bx+c. For the numerator we need to find two numbers whose product is c (30) and its sum b (-11); those numbers are -5 and -6. (-5)(-6)=30 and -5-6=-11.
Similarly, for the denominator those numbers are -2 and -5. (-2)(-5)=10 and -2-5=-7. Now we can factor both numerator and denominator:
\frac{ x^{2} -11x+30}{ x^{2} -7x+10} = \frac{(x-6)(x-5)}{(x-2)(x-5)}
Notice that we have (x-5) in both numerator and denominator, so we can cancel those out:
\frac{x-6}{x-2}
But remember than x= n^{2}, so lets replace that to get back to our original variable:
\frac{n^{2}-6 }{n^{2}-2 }
Last but not least, the denominator of rational expression can't be zero, so the only restriction in the variable is n^{2} -2 \neq 0
n^{2}  \neq 2
n \neq +or- \sqrt{2}
5 0
3 years ago
Read 2 more answers
Solve the exponent equation for x 7(4x-6)= 1/49
tatiyna
X=1. Chose C. Hoped that will help
4 0
3 years ago
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