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2 years ago

Help me please,Thanks;)

Mathematics

1 answer:

Sindrei [870]2 years ago

8 0

I think its the second choice

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Solve the system of equations using any method.

stiv31 [10]

Answer:

My answer what I came up with is B And B

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2 years ago

Simplify the expression 5+6i/4+6i<br> A) 56-6i/-20<br> B) -16-6i/-20<br> C)56-6i/52<br> D) -16-6i/52

IRISSAK [1]

Answer:

$The\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.$

Option (C) is correct .

Step-by-step explanation:

As the expression given in the question as follows.

$= \frac{5 + 6i}{4 + 6i}$

Now rationalize the expression.

$= \frac{5 + 6i\times 4 - 6i}{4 + 6i\times 4 - 6i}$

Using the formula

a² - b² = (a - b) (a + b)

Using in the above

$= \frac{5 + 6i\times 4 - 6i}{(4)^{2} - (6i)^{2}}$

$= \frac{5\times 4-5\times 6i+6i\times 4-36\ i^{2}}{16 - 36(i)^{2}}$

As i² = -1

$= \frac{20-30i+24i+36}{16 + 36}$

$= \frac{56-6i}{52}$

$Therefore\ the\ simplified\ form\ of\ the\ \frac{5 + 6i}{4 + 6i}\ is\ \frac{56-6i}{52}.$

Option (C) is correct .

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2 years ago

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Find the number of different subsets of the set mom dad son daughter

Ivahew [28]

Mom dad
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mom daughter
mom dad son
mom dad daughter
mom son daughter

dad son
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3 years ago

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Elina [12.6K]

Answer:

The answer is A

Step-by-step explanation:

when you see x and y side by side in a table, each row is one point on a graph. hope this helps!

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Step-by-step explanation:

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