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mr Goodwill [35]
3 years ago
9

Just answer correctly to get brainleist and 10 pts! :)

Mathematics
2 answers:
scZoUnD [109]3 years ago
8 0

Answer:

a.

Step-by-step explanation:

(2, 10) and (4, 10) have the same y value so it's not a function etc. etc.

Triss [41]3 years ago
5 0

Answer:

D. The relation represents y as a function of x, because each value of x is associated with a single value of y

Step-by-step explanation:

As long as no one x-value has two solutions, it can be considered a function. The x-values are {0, 2, 4, 6, 8}. Since there isn't any repetition, this can be considered as a function. The fact that 10 is repeated in the y-values doesn't affect that it is a function.

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What is the answer to x2-49=0 (must show work)
ki77a [65]
2x-49=0

—> 2x=49

—> 2x 49
— = —
2 2

—> x=24.5
4 0
3 years ago
Read 2 more answers
Add the following complex numbers: (5-3i)+(10+5i)
serious [3.7K]

Answer:

i = 7.5

Step-by-step explanation:

(5-3i)+(10+5i)

(5+10)+(5i-3i)

15+2i

15=-2i

15/2-i

7.5=i

6 0
3 years ago
Please help. What is the intermediate step in the form (x+a)^2=b as a result of completing the square for the following equation
nevsk [136]

Step-by-step explanation:

It makes 2x^2-20-206=0

Find D

Then find X1 and X2

7 0
3 years ago
Solve the equation by completing the square x^2-3x-18=0
Alexandra [31]

Answer:

x = -3, 6

Step-by-step explanation:

First, add 18 to both sides

x² - 3x - 18 = 0

           + 18    + 18

x² - 3x = 18

Add 9/4 to both sides because that is the square of half of -3

x² - 3x + 9/4 = 18 + 9/4

Multiply both sides by 4 to get rid of the fractions

(x² - 3x + 9/4 = 18 + 9/4)4

4x² - 12x + 9 = 72 + 9 = 81

Factor the left side of the equation

(2x - 3)² = 81

√(2x - 3)² = √81

Because of the square root, this will result in a positive number and a negative number

2x - 3 = 9

2x - 3 = -9

For both equations, add 3 to both sides then divide by 2

2x - 3 = 9

     + 3   +3

2x = 12

2x/2 = 12/2

x = 6

2x - 3 = -9

    + 3   + 3

2x = -6

x = -3

4 0
2 years ago
Make an equation and then solve it, show all your work.
Daniel [21]
The equation appears to be made already.

Using the Order of Operations, consider what operations are being done to the variable "c". They are
• divide c by 4
• add -5 to the quotient.

To find the value of "c", we "undo" these operations in reverse order. To undo the addition of a number, we add the opposite of the number. So, we will first
• add 5 to the equation
This gives
\dfrac{c}{4}-5+5=4+5\\\\\dfrac{c}{4}+0=9\\\\\dfrac{c}{4}=9

Now, the next operation that we need to undo is the division by 4. We can undo that by multiplying the equation by 4. So, we will next
• multiply the equation by 4
This gives
4\cdot \dfrac{c}{4}=4\cdot 9\\\\c\cdot \dfrac{4}{4}=36\\\\c \cdot 1=36\\\\c=36

The solution is c = 36.
6 0
3 years ago
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