What’s the inverse of the function f(x)=7x+2

Mathematics

1 answer:

lapo4ka [179]3 years ago

6 0

The answer is f(x)=(x-2)/7
to find the inverse of a function, swap x and y and then find y. hope this helps!

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Jim read 24 pages in 40 minutes on Tuesday and 18 pages in 24 minutes on Wednesday. Are the ratios of pages read to minutes on T

IRISSAK [1]

Answer: Not proportional

Step-by-step explanation:

Ratio of pages read by Jim on Tuesday to minutes = $\frac{24}{40}=\frac{3}{5}=3:5$

Ratio of pages read by Jim on Wednesday to minutes = $\frac{18}{24}=\frac{3}{4}=3:4$

But $\frac{3}{5}\neq \frac{3}{4}$

Therefore, the ratios of pages read to minutes on Tuesday and Wednesday are not proportional.

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2 years ago

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What is the intersection of the given lines?

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Point D that is the intersection of the the given lines

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1 year ago

Need Help. Will give brainiest for correct answer with reason/work.

Alexxandr [17]

Answer: y=1/x is the blue line and it goes straight up and down the y and x axis.

y=x^2 is the green line which is a thin "u" like shape. its going up the y axis.

y=\frac{x^{3}}{x^{2}-9} is the red line it goes up and down the y axis and diagonally across the middle of both axis'.

Step-by-step explanation: I went to desmos calculator and typed in your equation and it automatically gave me this graph. (See Picture for more details.)

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2 years ago

Factor the quadratic equation <br> 3x^2+3x-6=0

Salsk061 [2.6K]

The answer would be...

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2 years ago

The distance on a city grid is measured in blocks. On the grid, the coordinates for the location of your house are (2,6). The In

dolphi86 [110]

The answer is C) 16 blocks.

We will use the distance formula for this problem:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

From your house to the internet cafe:

$d=\sqrt{(8-6)^2+(12-2)^2}=\sqrt{2^2+10^2}=\sqrt{4+100}
\\
\\=\sqrt{104}=10.2$

From the internet cafe to your friend's house:
$d=\sqrt{(8-4)^2+(12-8)^2}=\sqrt{4^2+4^2}=\sqrt{16+16}=\sqrt{32}=5.7$

Together, we have 10.2+5.7=15.9, which rounds to 16 blocks.

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3 years ago