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3 years ago

Jeremy is recording the weights, in ounces, of different rock samples in a lab. The weights of seven rocks are listed below.

Mathematics

2 answers:

RideAnS [48]3 years ago

8 0

The value of the (RIC) will increase from 4 to 5.75,that is,44%

Kruka [31]3 years ago

8 0

Answer:

The correct answer is option "C"

"The interquartile range increases"

The value of the (RIC) will increase from 4 to 5.75, that is, 44%

Step-by-step explanation:

The range is defined as the difference between the maximum and minimum value of a series of data. Xmax - Xmin

The interleaving range (RIC) is a measure of dispersion that measures the central range of 50% of the data.

Therefore, if a low value is included, such as five, the variance of the data would be greater and, consequently, the value of the (RIC) will increase from 4 to 5.75, that is, 44%

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Can 7/30 be reduced?

JulijaS [17]

Answer:

Step-by-step explanation:

as 7 is a prime numbers and prime numbers cannot be reduced .

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3 years ago

Find the first, fourth, and eighth terms of the sequence. A(n) = −2 ∙ 2^x − 1

geniusboy [140]

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3 years ago

Read 2 more answers

Solve the following system of equations 2x – 3y = 6 4x+2y=4

FinnZ [79.3K]

Answer:

$\boxed{(\frac{3}{2} ,-1)}$

Step-by-step explanation:

$\left \{ {{2x-3y=6} \atop {4x+2y=4}} \right.$

It seems this system of equations would be solved easier using the elimination method (the x and y values are lined up).

Multiply everything in the first equation by -2 (we want the 4x to be able to cancel out with a -4x).

$2x-3y=6 \rightarrow -4x+6y=-12$

Now line up the equations (they are already lined up - convenient) and add them from top to bottom.

$\left \{ {{-4x+6y=-12} \atop {4x+2y=4}} \right.$

The -4x and 4x are opposites, so they cancel out.

Adding 6y and 2y gives you 8y, and adding -12 and 4 gives you -8.

$8y=-8$

Divide both sides by 8.

$y=-1$

Since you have the y-value you can substitute this in to the second (or first equation, it doesn't necessarily matter) equation.

$4x +2(-1)=4$

Simplify.

$4x -2=4$

Add 2 to both sides.

$4x=6$

Divide both sides by 4.

$x=\frac{6}{4} \rightarrow\frac{3}{2}$

The final answer is $x=\frac{3}{2} ,~y=-1$ .

$(\frac{3}{2} ,-1)$

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3 years ago

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frez [133]

Answer:

OK So i didnt know if it was +16.9 so the first answer i got i didn't add the 16.9 and i got z= -7.584 then when i did it with the 16.9 i got z= -21.104

Step-by-step explanation:

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