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3 years ago

For each function determine if the given function is on the graph. y = 7x-2; (1,5) and (2,10)

2 answers:

8 0

To do this, find the equation that would connect the two points...

First, find the slope between the two points
slope = m = (y1 - y2) / (x1 - x2) = (5 - 10) / (1 - 2) = -5/ -1 = 5

Since the slope between the two points is 5 and not 7, the points will no be on the line.

P.S. Hope this helps :)

scoundrel [369]3 years ago

6 0

We have here a function y=f(x)=7x-2
We can check (1,5), and x=1, y=5 and we have 5=7x1-2, that is right.
But (2,10) we can see x=2, y=10 and 10=7x2-2 or 10=12, that is wrong.

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What can you conclude about 3/5 and 60/100 if you know 3/5 is equivalent to 6/10 and 6/10 is equivalent to 60/100

labwork [276]

First we check whether $\frac{3}{5}$ is equivalent to $\frac{6}{10}$

$\frac{3*2}{5*2}$ = $\frac{6}{10}$

Both top and bottom are multiplied by 2 to get $\frac{6}{10}$

So they are equivalent fractions.

Now we check whether $\frac{6}{10}$ is equivalent to $\frac{60}{100}$

$\frac{6*10}{10*10}$ = $\frac{60}{100}$

Both top and bottom are multiplied by 10 to get $\frac{60}{100}$

So they are equivalent fractions.

$\frac{3}{5}$ = $\frac{6}{10}$ = $\frac{60}{100}$

Hence we conclude that they are equivalent fractions.

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4 years ago

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3 years ago

What percent of the students are part-time students?

lys-0071 [83]

Answer:

The % is 33.3%

Step-by-step explanation:

Due to:

If 600 is the 100%, then 200 what % is?

600 ---> 100%

200 ---> %?

% = [(200)*(100)]/[600]

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4 0

3 years ago

What fraction represents the sum of 1/5 + 1/5 + 1/5

Drupady [299]

Answer:

0.6=6/10=3/5

Step-by-step explanation:

0.2+0.2+0.2

0.6

The tenth place wich means 6/10

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3 years ago

What is the surface area of the cube?<br>A. 64 mm2<br>B. 192 mm2<br>C. 384 mm2<br>D. 512 mm2

ivanzaharov [21]

Answer:

C. 384 mm2

Step-by-step explanation:

In order to find ONE side, you would multiply 8x8 (in this scenario at least).

You would then get this:

8mm x 8mm = 64mm2

But we're not done yet!

In order to find all six sides, you need to multiply the last number/area by six

You would then get:

64 x 6 sides = 384mm2

Hope this helps!

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3 years ago