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inn [45]
2 years ago
9

Which of the following methods can be used to determine if a relation is a function?? Select all that apply.

Mathematics
1 answer:
CaHeK987 [17]2 years ago
8 0

Answer:

B)  Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value

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Please answer ASAP. 10 points. Mathematics
frosja888 [35]

okay so you would fill this in as

Y=(275x36)+800

this would then go to

y=10700-400

so the answer is 10300

hope this helps! enjoy!

4 0
3 years ago
Which of the following would best be solved using factoring the difference of squares? 2² + 3x - 10 = 0 O 3r² + 12x = 8 2³ +52²
IgorC [24]

Given: Different equations

To Determine: Which would be best solved using difference of two squares

Solution

The factorization of a difference of two squares is given below

a^2-b^2=(a-b)(a+b)

Let us examine each of the given equation

\begin{gathered} x^2+3x-10=0 \\ x^2-2x+5x-10=0 \\ x(x-2)+5(x-2)=0 \\ (x-2)(x+5)=0 \end{gathered}\begin{gathered} 3x^2+12x=8 \\ 3x^2+12x-8=0 \end{gathered}\begin{gathered} x^3+5x^2-9x-45=0 \\ x^2(x+5)-9(x+5)=0 \\ (x+5)(x^2-9)=0 \\ x^2-9=x^2-3^2=(x+3)(x-3) \\ Therefore \\ (x+5)(x+3)(x-3)=0 \end{gathered}\begin{gathered} x^2-25=0 \\ x^2-5^2=0 \\ (x+5)(x-5)=0 \end{gathered}

From the above,

\begin{gathered} x^3+5x^2-9x-45=0 \\ AND \\ x^2-25=0 \end{gathered}

The two equation above can be solved by difference of two square, but the equation below is the easiest solved using differnce of two square

x² - 25 = 0

3 0
1 year ago
A) what is 42%of 250? please explain the method......​
arsen [322]

Answer:

105

Step-by-step explanation:

What is 42% of 250?

Let's break this question down.

We have:

42% – A percent is a fraction out of 100. 100% being fully complete. We can express 42% as 42/100 or 0.42.

of – This symbolizes multiplication.

250 – This is our total.

Now let's set up an equation.

42% of 250

0.42 • 250 = ?

Now, multiply.

105

This is your answer.

42% of 250 is 105.

Hope this helps!

4 0
2 years ago
Read 2 more answers
Will make brainliest what is 2,837 to the nearest 10????????????????????????
maria [59]

Answer:

2,840

Step-by-step explanation:

since the three is in the tens place and 7 in single <em>if 5 and up round up fi 4 and below leave it alone you</em> will then take the 3 and round up to give you 2,840

4 0
2 years ago
Read 2 more answers
What is the equation of the line given the table
OLEGan [10]

Answer:

y=3x-1

Step-by-step explanation:

7 0
2 years ago
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