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4 years ago

Find the value of 3x+2 when 7+ x =5 Please Help me !!

Mathematics

1 answer:

Juliette [100K]4 years ago

3 0

3x+2=5x and 7+x=5 the answer is 10x

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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 .

8 0

3 years ago

Read 2 more answers

Which of the following xpressions is equivalent to -1/4 - 5/3? -1/4 + (-5/3) or - 1/4 + 5/3?

Nadusha1986 [10]

-1/4 + (-5/3)

When there is no number between a grouping symbol and a + or - sign, by default you can multiply the contents in the group by 1 to get rid of the grouping symbols.

5 0

3 years ago

Expand to write an equivalent expression:

LUCKY_DIMON [66]

Answer:

kindly put the complete question because you just wrote the question without the equation

8 0

3 years ago

12=r+6-2r so what is r

svlad2 [7]

R is -6.
12 = -r +6
12 = 6 - r
12 - 6 = -r
6 = -r
r = -6

6 0

3 years ago

Dose the following table of points represent a function

ch4aika [34]

Answer:

Step-by-step explanation:

theres no common theme between the x and y variable

4 0

4 years ago