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Charra [1.4K]
3 years ago
7

An item cost 50 is marked up 20% off.Sales tax for the item is 8%.What is the final price including tax?

Mathematics
1 answer:
Alex787 [66]3 years ago
5 0

$64.80 50+20%+8% tax then you get 64.80

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To which interval would we restrict f(x) = cos (x-π/4) so that f(x) is invertible?
nadezda [96]

Answer:

The range of x values for which y is unique is 2·π

Step-by-step explanation:

For a function j: X → Y to be invertible, we have that for every y in Y, there is associated only one x which is an element of x

Hence, f(x) = cos(x - π/4) gives

the x intercept at two penultimate points of the graph of cos(x - π/4) are;

x = 2.36, and x = 8.64

x = 3/4·π, and x = 2.75·π = 2\tfrac{3}{4}\cdot \pi

Hence the range of x values for which y is unique is presented as follows

2\tfrac{3}{4}\cdot \pi - \frac{3}{4}\cdot \pi = 2}\cdot \pi

The range of x values for which y is unique = 2·π.

4 0
2 years ago
What is the slope of the line passing through the points (-1,-7) and (-9, -2) ?​
Dominik [7]
The equation for slope is:
(y2 - y1) / (x2 - x1)

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Slope of the line:

5/-8 or -5/8
7 0
3 years ago
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Change to a mixed number 5/3how to change 5/3 into a mixed number
Jet001 [13]

Answer:1 2/3

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3 years ago
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The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?
elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

15x+7y=15

The given inequality is

15x+7y\geq 15

A point will contained in solution set if the above inequality satisfied by that point.

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This statement is false, therefore option a is incorrect.

Check the point (-3,0),

15(-3)+7(0)\geq 15

-45\geq 15

This statement is false, therefore option b is incorrect.

Check the point (3,3),

15(3)+7(3)\geq 15

66\geq 15

This statement is true, therefore option c is correct.

Check the point (-3,-3),

15(-3)+7(-3)\geq 15

-66\geq 15

This statement is false, therefore option d is incorrect.

7 0
3 years ago
Six friends share Three fruit bars equally how much do they get ?
kiruha [24]
If there are 6 friends and half as many food bars as friends, then each friend would get half a food bar. How that each of the 3 food bars are split in half, there is 6 pieces for the 6 friends! :)
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