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2 years ago

What is the union of the union of two sets and the intersection of these two sets?

Mathematics

1 answer:

Alexandra [31]2 years ago

8 0

Where all the lines meet to make an X .

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Solve for x. Round to the nearest tenth, if necessary.

natka813 [3]

Answer:

25.5

Step-by-step explanation:

first find angle E.

remember, all angles in a triangle always add up to 180 degrees.

E = 180 - 90 - 20 = 70 degrees

now we use the law of sines.

ED/sin(20) = DC/sin(70) = EC/sin(D)

EC = x

sin(D) = sin(90) = 1

24/sin(70) = x/1 = x

x = 25.5

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2 years ago

How to do question 2

jek_recluse [69]

Answer:

i wish i could help you but i haven't learned that.Sorry.hope u find whatchu looking for.

Step-by-step explanation:

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3 years ago

How to move variable from denominator to numerator?

abruzzese [7]

By changing their exponent to negative.

Ex.
$\frac{1}{ {x}^{2} } = {x}^{ - 2} \\ \frac{2}{y} = 2 {y}^{ - 1}$

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2 years ago

Find the value of n .<br> 6/n = 24/28<br> y = ___.

il63 [147K]

Answer:

$n=7$

Step-by-step explanation:

Cross multiply, isolate the variable, and divide by the coefficient to solve.

$\frac{6}{n}=\frac{24}{28} \\ \\ 24n=168 \\ \\ n=7$

Plug back in to check.

$\frac{6}{7}=0.857142857 \\ \\ \frac{24}{28} =0.857142857$

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3 years ago

En un experimento de laboratorio se mezcla dextrosa y agua en varios recipientes, con la condición de que la concentración de de

sashaice [31]

Answer:

4give me I need the points T_T

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2 years ago