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3 years ago

Does this table represent a function? Why or why not?

Mathematics

2 answers:

Nutka1998 [239]3 years ago

5 0

Answer:

C.No because two of the y values are the same

Step-by-step explanation:

Novosadov [1.4K]3 years ago

3 0

Answer: A. No, because one x-value corresponds to two different y-values.

Step-by-step explanation:

A function is a kind of special relationship where each input has only a single output.

We take input variable as 'x' and output variable as 'y'.

In the given table, it can be seen that one input value corresponds to two two different output values.

i.e. 8 is the input value corresponding to 5 and 8 both.

It contradicts the definition of the function.

Hence, the given table doesn't represent any function.

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If f(x) = (x-6)(x +12), determine the x-intercepts of y = f(-3x).<br> Show your work.

kirill [66]

Explanation is $^{}$ in a file

bit. $^{}$ ly/3gVQKw3

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2 years ago

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Subtract 23.4 – 8.78 =_____

anastassius [24]

Answer:

14.62

Step-by-step explanation:

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3 years ago

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Pinto is planning to paint the walls of a bedroom that is 20 feet long, 15 feet wide, and 8 feet high. Is he too has 1 gallon of

eimsori [14]

Answer:

0.4 gallons

Step-by-step explanation:

Length of a bedroom= 20 feet

Breadth of a bedroom= 15 feet

Height of a bedroom= 8 feet

Area of walls of a bedroom= 2(l+b)×h

Area of walls of a bedroom=2(20+15)×8 $ft^{2}$

Area of walls of a bedroom= 2× 35×8 $ft^{2}$

Area of walls of a bedroom=560 $ft^{2}$

Amount of paint in 1 gallon = 400 $ft^{2}$

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Number of gallons required= 1.4 gallons

Hence, 0.4 extra gallons required

5 0

3 years ago

What is 7.75 in word form?

iris [78.8K]

Seven and Seventy-Five Hundredths

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3 years ago

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If I get a 55.6% on a test an the test is worth 80% what is my grade on that test A,B,C,D,F

Fittoniya [83]

If you got 55.6% on a test and that test is worth 80%

So first let us calculate the actual percentage that you scored.

The actual percentage is

$\begin{gathered} \frac{0.556}{0.80}=0.695 \\ 0.695\times100=69.5\% \end{gathered}$

So your actual score on the test is 69.5%

The grading system varies across countries and states

The traditional grading scale is given below

90% to 100% corresponds to A grade.

80% to 89% corresponds to B grade.

70% to 79% corresponds to C grade.

60% to 69% corresponds to D grade.

0% to 59% corresponds to F grade.

69.5% can be rounded off to 70%

Therefore, 69.5% corresponds to C grade.

(note: the above grade is not valid in case your school follows a different grading scale)

6 0

1 year ago