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liubo4ka [24]
3 years ago
5

True or false a function is a preset formula that performs a calculation?

Mathematics
1 answer:
LenKa [72]3 years ago
6 0
Hmm.   Certainly a preset formula that takes an input, performs a calculation, and produces an output is a function.

But other things might be functions as well.  Being a function doesn't require an algorithm or preset formula, just some way of describing a single output for every input in the domain.  A table would be another way to specify a function.  Sometimes we know something's a function but we don't know how to calculate it.

So I'm not sure really what they're after in this question, but I'm going to say FALSE.


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Each month, Kaisorn deposits $50.00 onto her public transportation card. It costs her $2.50 per trip to ride the subway. Thom de
lara31 [8.8K]
The answer is
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50 - 2.5x = y
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Soda A cost $1.49 per 28 oz. bottle vs. $0.95 per 21 oz.
IrinaVladis [17]

Answer:

You will be spending for Soda A for about 1 more cent than Soda B

Step-by-step explanation:

Find the rate of both sodas.

Soda A.

1.49 / 28 = $0.0532 per oz.

Soda B.

0.95 / 21 = $0.0452 per oz.

7 0
3 years ago
What is a way that you can write 83.041 in notation form?
statuscvo [17]
To put this in notation form we would have to move the decimal to be in between the 8 and 3 
so since we moved it only one time this is what it looks like now
8.3041 
and in order to make it equal 83.041 we multiply it by 10 sooo your answer...
<span>8.3041 x 10 
</span>and it would be the same thing if we were to write 
<span>8.3041 x 10</span>¹
if we wanted to check our answer to make sure it correct we would solve it to see if we get 83.041
8.3041 x 10 = 83.041 hey look its correct:)
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8 0
3 years ago
Write the equation of the line that passes through the point (-5,5) and has a slope of -8/5
Free_Kalibri [48]

Answer:

The equation of the line that passes through the point (-5,5) and has a slope of -8/5 will be:

                                           y=-\frac{8}{5}x-3

Step-by-step explanation:

Given

  • \left(x_1,\:y_1\right)=\left(-5,5\right)
  • m=\frac{-8}{5}

Point-Slope Form equation is

\left(y-y_1\right)=m\left(x-x_1\right)

\left(y-5\right)=\frac{-8}{5}\left(x-\left(-5\right)\right)

\mathrm{Apply\:rule}\:-\left(-a\right)=a

y-5=\frac{-8}{5}\left(x+5\right)

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}

y-5=-\frac{8}{5}\left(x+5\right)

y-5+5=-\frac{8}{5}\left(x+5\right)+5

y=-\frac{8}{5}x-3

Therefore, the equation of the line that passes through the point (-5,5) and has a slope of -8/5 will be:

                                           y=-\frac{8}{5}x-3

5 0
3 years ago
Lucy is financing $370,000 to purchase a house. How much money will she save over the life of a 30-year, fixed-rate loan by buyi
IRISSAK [1]
Lucy would save $114.
Step 1: Multiply 6.175 x 30 = 185.25
Step 2: Divide 370,000/185.25 = 1,997
Step 3: Repeat Steps 1&2 but with (6.55 x 30) and divide 370,000/196.5 = 1,883.
Step 4: Subtract 1,997 - 1,883 = 114
Step 5: She will save $114 with points versus without.
4 0
3 years ago
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