3 years ago

XY=4x+7 and YZ=8x-1, Find XY

Mathematics

1 answer:

laiz [17]3 years ago

5 0

Answer:

XZ = 12x + 6

Step-by-step explanation:

XZ = XY + YZ

XZ = <u>4x</u> + 7 + <u>8x</u> - 1

XZ = 12x + 6

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One <em><u>possible answer</u></em> is:

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The value of test statistic is 5.45

Data;

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<h3>Test Statistic</h3>

The formula to calculate the test statistic is given as

$t = \frac{x_1 - x_2}{\sqrt{\frac{s_1^2}{n_1}+ \frac{s_2^2}{n_2} } } \\$

Let's substitute the values and solve for t

$t = \frac{x_1 - x_2}{\sqrt{\frac{s_1^2}{n_1}+ \frac{s_2^2}{n_2} } } \\t = \frac{6.2 - 3.8}{\sqrt{\frac{2^2}{25} + \frac{1^2}{30} } } \\t = \frac{2.4}{0.44} = 5.45$

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Learn more on test statistic here;

brainly.com/question/15980493

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3 years ago

A recipe for cookies calls for 3/4 cups of butter. I want to make 2/3 of the recipe. How much butter should I use to make the co

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A circle is the collection of points in a plane that are the same distance from the radius. True or false?

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My answer would be false. I hope this answers your question!

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