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Maksim231197 [3]
3 years ago
12

What type of number is -16.2i

Mathematics
2 answers:
azamat3 years ago
8 0

Answer:

Complex and imaginary number

Step-by-step explanation:

First, let's write the number-16.2i in the form of a+bi.

0+ (-17)i

Since -16.2i can be written in the form of a + bi, where a and b are real numbers, it is a complex number.

Also, since a=0, it is also an imaginary number.

-16.2i is complex and imaginary.

Gelneren [198K]3 years ago
3 0
Complex and imaginary number
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Solve 9x-7y=-7 i don't know how to do it so could you show me step by step please
Lesechka [4]

First of all, you need to know what a 'solution' is, so you'll know it
when you see it.

A 'solution' to an equation is a number, or a set of numbers, that
you can write in place of the variables (the letters), and when you
do that, the equation will have only numbers in it, and it'll be a true
statement.

Your equation has two variables in it ... 'x' and 'y' .  In order to find
just a single set of numbers for what both of them must be, you
would need two equations.

The way it stands now, with only one equation, there are actually
an infinite number of solutions.  Each solution is a pair of numbers ...
one for 'x' and one for 'y' ... and if you write them into the equation
in place of 'x' and 'y', then the equation is a true statement. 
I'll show you how to tell if a pair of numbers is a solution or not.

Here's what that looks like:

Say I give you two pairs of numbers, and I tell you that both of them
are solutions to your equation.  The 'solutions' I give you are

          x=0
          y=1
and
          x=2
          y=3 .

You don't trust me, and you say to me "Wait just a minute there, dude ! 
Not so fast.  I'll need to check them out and see if those are really solutions
to my equation."

You take the first pair and write it into your equation:
x=1, y=0
                                   9x  -  7y  = -7
                                  9(0) - 7(1) = -7
                                   0    -  7   = -7
                                           -7   = -7
OK.  That's a true statement.
So x=0, y=1 is a solution.

Now check the other one I gave you:
x=2, y=3
                                   9x  -  7y  = -7
                                  9(2) - 7(3) = -7
                                   18  -  21  = -7
                                        -3      = -7
This is NOT a true statement.
So  x=2, y=3 is NOT a solution to your equation.
I pulled a fast one on you.  If I was charging you money for solutions,
then you would not pay me for this one, because it's not a solution.

8 0
3 years ago
Briana bought a total of 8 notebooks and got 16 free pens
loris [4]
The question isn't clear enough :)
8 0
3 years ago
The restaurant ordered small pictures and large pictures to decorate the restaurant. 6 times as
lyudmila [28]

Answer:

125

Step-by-step explanation:

25 x 6 = 150

150 - 25

7 0
2 years ago
Read 2 more answers
Right answer gets brainlyest
lyudmila [28]

Answer:

\frac{2}{3} (x+6)

Step-by-step explanation:

\frac{2}{3} x+4= \frac{2}{3} (x+4÷\frac{2}{3})

\frac{2}{3}x+4 = \frac{2}{3} (x+4×\frac{3}{2})

\frac{2}{3}x+4 = \frac{2}{3} (x+\frac{12}{2})

\frac{2}{3}x+4 = \frac{2}{3} (x+6)

3 0
2 years ago
If g(x) = x2 + 2, find g(3). 9 8 11 6
cestrela7 [59]

Answer

Find out the value of g(3)  by using the function g(x) = x² + 2 given in the question .

To proof

The function given in the question is

g(x) = x² + 2

Take  x = 3

put x = 3  in the  g(x) = x² + 2

than it becomes

g(3) = 3² + 2

solving the above

we get

g(3) = 9 + 2

g(3) = 11

Thus g(3) = 11  and option (c) is correct .

Hence proved


7 0
3 years ago
Read 2 more answers
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