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2 years ago

Simplify to a + bi form. (6-2i)^2

Mathematics

1 answer:

Zigmanuir [339]2 years ago

5 0

The answer is 32-24i
hope it helps
please mark as brainliest

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If cot x = .78, what is tan x

Vanyuwa [196]

We know, tan x = 1 / cot x
So,tan x = 1/ 0.78
tan x = 1.28

In short,Your Answer would be 1.28

Hope this helps!

3 0

2 years ago

Expand and simplify 4(2x +7) – 3(x + 5)

Vikentia [17]

Answer:

$4\left(2x+7\right)-3\left(x+5\right)=5x+13$

Step-by-step explanation:

Given the expression

$4\left(2x+7\right)-3\left(x+5\right)$

Expand and simplify the expression

$4\left(2x+7\right)-3\left(x+5\right)$

Expand 4(2x + 7) = 8x + 28

$4\left(2x+7\right)-3\left(x+5\right)=8x+28-3\left(x+5\right)$

Expand -3(x + 5) = -3x - 15

$=8x+28-3x-15$

Group like terms

$=8x-3x+28-15$

Add similar elements: 8x - 3x = 5x

$=5x+28-15$

Simplify

$=5x+13$

Therefore, we conclude that:

$4\left(2x+7\right)-3\left(x+5\right)=5x+13$

6 0

2 years ago

Solve for x x/4= 25 quick

storchak [24]

Answer:

x=100

Step-by-step explanation:

6 0

2 years ago

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Please help me i really need help please help me please i really need help please help me please

umka21 [38]

Answer:

hello hello hello is there anybody in there

Step-by-step explanation:

6 0

2 years ago

'Ciumane ananen 32.50t + 5 = 28.75t + 20

gtnhenbr [62]

Answer:

The answer is 0.25

Step-by-step explanation:

(1)we group like terms by subtracting 32.50 by 28.75

(2) we subtract 20 and 5 to give us a value of 15

(3)when we subtract 32.50 and 28.75 we get a value of 3.75

(4)so the equation will look like this 3.75t = 15

(5)we divide 3.75 we both the two equations

(6)With a correct calculation, Your answer should be t = 0.25

6 0

2 years ago