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Tamiku [17]
3 years ago
11

Not sure need help ​

Mathematics
1 answer:
lord [1]3 years ago
3 0

Answer:

9

Step-by-step explanation:

3-2i+8=23

5+2i+23

2i=18

i=-9

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Solve the linear system by using Substitution. Enter your answer as an ordered pair.
MAXImum [283]

Answer: {y,x} = {4,2} ) ) ) )4

Step-by-step explanation: y

[2] y = -2x + 8

// Plug this in for variable y in equation [1]

[1] (-2x+8) - x = 2

[1] - 3x = -6

// Solve equation [1] for the variable x

[1] 3x = 6

[1] x = 2

// By now we know this much :

y = -2x+8

x = 2

// Use the x value to solve for y

y = -2(2)+8 = 4

Solution :

{y,x} = {4,2}

7 0
3 years ago
Read 2 more answers
Solve -12>3x then graph on a number line that you create and please please show all of your work step by step.
V125BC [204]
The work has one step: divide the expression by 3.
.. -4 > x

Because the symbol is "greater than", the circle at x=-4 is an open circle.

5 0
3 years ago
Which graph represents an odd function?<br><br>Answer by using: A, B, C, or D for each graph.
vladimir1956 [14]

Answer: The correct option is C.

Explanation:

A function is called an odd function if,

f(-x)=-f(x)

It means if the points are in the form of (x,y) then (-x,-y) is also in the graph.

Reason for correct option:

In option C, a point  (1,2),

It means,

f(1)=2

And we have another point (-1,-2).

f(-1)=-f(1)=-2

The other points are (2,3),(-2,-3),(3,-1),(-3,1),(4,0),(-4,0). Therefore the function is an odd function.

Reason for incorrect option:

In option A, a point is (1,3), therefore the value of function at x = -1 should be -3.

But the value of function is 1 at x=-1, therefore it is not an odd function.

In option B, a point is  (1,0), therefore the value of function at x = -1 should be 0.

But the value of function is -3 at x=-1, therefore it is not an odd function.

In option D, a point is (1,-1), therefore the value of function at x = -1 should be 1.

But the value of function is -1 at x=-1, therefore it is not an odd function.

6 0
3 years ago
Read 2 more answers
Tyrone went to a basketball game and bought a jersey that was on sale at a 30% discount. He also bought a hat that cost $37.89.
Dmitry [639]

Answer:

Jersey cost (without discount)= $65

Step-by-step explanation:

<u>First, we need to determine how much he spent on the jersey:</u>

Jersey cost (with discount)= 83.39 - 37.89

Jersey cost (with discount)= $45.5

<u>Now, the original cost of the jersey:</u>

Jersey cost (without discount)= discount cost / (1 - discount)

Jersey cost (without discount)= 45.5 / 0.7

Jersey cost (without discount)= $65

7 0
3 years ago
Find the limit if it exists.
mash [69]

Answer:

b. 27

Step-by-step explanation:

When finding the limit of a function with no domain restrictions, just plug in the value and evaluate the function

2(2)³ + 2² + 7

    2(8) + 4 + 7

        16 + 4 + 7

                    27

         

8 0
3 years ago
Read 2 more answers
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