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3 years ago

Given A = {a, e, i, o, u} and B = {a, l, g, e, b, r}, find A ∪ B.

Mathematics

2 answers:

melamori03 [73]3 years ago

6 0

A $U$ B means everything in A and B, so,
A $U$ B = {a, e, i, o, u, l. g, b, r }
Hope this helped!

harkovskaia [24]3 years ago

3 0

Ahh..this is sets topics - A U B = all the elements found in A and B. But do note, do not repeat the elements if it is the same. And if the question were to ask : n(AUB) = total number of elements found in A and B.

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IRISSAK [1]

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3 years ago

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Elenna [48]

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3 years ago

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Karolina [17]

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$\displaystyle\int_C\vec F\cdot\mathrm d\vec r=\iint_D\left(\frac{\partial(2x)}{\partial x}-\frac{\partial(3x-4y)}{\partial y}\right)\,\mathrm dx\,\mathrm dy=6\iint_D\mathrm dx\,\mathrm dy$

which is 6 times the area of $D$ , the region with $C$ as its boundary.

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6 0

3 years ago

You have an SRS of size 8 and calculate the one-sample t statistic. What is the critical value t∗ such that (a) t has probabilit

Rudik [331]

Answer:

a) "=T.INV(1-0.02,7)"

And we got $t_{crit}= 2.518$

b) "=T.INV(0.85,7)"

And we got $t_{crit}= 1.119$

Step-by-step explanation:

For this case we have a sample size of n=8, so we can find the degrees of freedom like this:

$df = n-1 = 8-1 =7$

Part a

For this case we need a value who accumulates 0.02 of the area in the right of the t distribution with 7 degrees of freedom so we can use the following excel code:

"=T.INV(1-0.02,7)"

And we got $t_{crit}= 2.518$

Part b

For this case we need a value who accumulates 0.85 of the area in the left of the t distribution with 7 degrees of freedom so we can use the following excel code:

"=T.INV(0.85,7)"

And we got $t_{crit}= 1.119$

7 0

2 years ago