3 years ago

Adding and subtracting complex numbers question

Mathematics

1 answer:

Darina [25.2K]3 years ago

8 0

True because i² = -1 and a and b are real

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What value of x makes the vertical parts of the letter N parallel?<br> picture provided

tangare [24]

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$2x + 9 = 5x$

$5x = 2x + 9$

Subtract sides 2x

$- 2x + 5x = - 2x + 2x + 9$

$3x = 9$

Divide sides by 3

$\frac{3x}{3} = \frac{9}{3} \\$

$x = 3$

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CHECK :

$2x + 9 = 5x$

$2(3) + 9 = 5(3)$

$6 + 9 = 15$

$15 = 15$

So the value is correct.

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8 0

2 years ago

A student earned a grade of 80% on a math text that had 20 problems. How many problems on this test did the student answer corre

mars1129 [50]

The student got 16 problems correct.

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3 years ago

Either enter an exact answer in terms of \piπpi or use 3.14, point, 14 for \piπpi and enter your answer as a decimal.

OverLord2011 [107]

Answer:

49π sq. units

Step-by-step explanation:

Find the diagram attached

We can find the area of the given circle

Given

diameter of the circle d = 14

Area of the circle = πd²/4

Substitute the given diameter

Area of the circle = π(14)²/4

Area of the circle = 196π/4

Area of the circle = 49π sq. units

Hence the exact answer in terms of π is 49π sq. units

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3 years ago

Find the product. Enter your answer in simplest form

galben [10]

Could be wrong but try 6/3 then 2

5 0

3 years ago

61/100 in expanded form

charle [14.2K]

61/100 = .61

.61 = 0.6 + 0.01

Hope that helps :)

7 0

3 years ago