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snow_lady [41]
3 years ago
9

What type of number is -2i?

Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0

Answer:

It is an imaginary number.

Step-by-step explanation:

In this example, the real number is -2 is being multiplied by the imaginary unit, i, which i can be also expressed as (√-1).

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Diego is thinking of two positive numbers. He says, 'If we triple the first number and double the second number, the sum is 34.'
UNO [17]

1st number: 0

2nd number: 17

Answer

Step-by-step explanation:

3x+2y=34 x is the first number, y is the second.

1/2x+2y=34 multiply each number by two to get rid of the integer by the variable x.

x+4y=68 solve for x.

x=68-4y add this into the first equation to solve for variable y.

3(68-4y)+2y=34 solve for y.

204-10y=34

-10y= -170

y=17

now to solve for x

x= 68-4(17)

x= 0

8 0
3 years ago
What are three equivalent ratios 14/2
Taya2010 [7]

Answer:

  • 7/1
  • 21/3
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Step-by-step explanation:

Reduce the ratio to lowest terms, then multiply numerator and denominator by any same value to get another equivalent.

  \dfrac{14}{2}=\dfrac{2\cdot 7}{2\cdot 1}=\dfrac{7}{1}\\\\=\dfrac{3\cdot 7}{3\cdot 1}=\dfrac{21}{3}\\\\=\dfrac{76\cdot 7}{76\cdot 1}=\dfrac{532}{76}

3 0
3 years ago
How many km/hr is 28 feet per minute
Marina86 [1]
28 ft per min = 0.512064 km per hour
7 0
4 years ago
Read 2 more answers
What are the intercepts of y=4x-2?
pshichka [43]
First, solve for the x - intercept. To do so, equate y to 0 and solve for x. 

                                               0 = 4x - 2, x = 1/2

Second, solve for the y - intercept. Equate x to 0 which will give us,

                                              y = (4)(0) -2, y = -2

Therefore,  the x-intercept is 1/2 and y-intercept is -2. 
8 0
3 years ago
Can you please explain ME how to solve identity of algebra homework ​
yKpoI14uk [10]

Step-by-step explanation:

"identity" means an operation that does nothing.

For adding numbers, adding 0 changes nothing, so 0 is the identity for addition.

For multiplication, multiplying by 1 changes nothing, so 1 is the identity for multiplication.

3 0
3 years ago
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