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3 years ago

What is the total cost, with 8% sales tax, of a $75 pair of shoes

Mathematics

2 answers:

Tema [17]3 years ago

5 0

Answer:

Poop

Step-by-step explanation:

Helga [31]3 years ago

4 0

Answer:

$81

Step-by-step explanation:

The total cost would be cost + cost(tax), or cost(1 + tax).

So here, it would be 75(1 + 0.08).

That is equal to $81.

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zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

$(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx.cos x.$

Required

Prove

To start with; we open the bracket on the left hand side

$(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)$

$(sin x - cos x)^2 = (sin x )(sin x - cos x)- (cos x)(sin x - cos x)$

$(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x$

$(sin x - cos x)^2 = sin^2 x -2sinx cos x + cos^2 x$

Reorder

$(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x$

From trigonometry;

$sin^2x + cos^2x = 1$

So;

$(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x$

becomes

$(sin x - cos x)^2 = 1 - 2sinx cos x$

Also from trigonometry;

$sec^2x - tan^2x = 1$

So,

$(sin x - cos x)^2 = 1 - 2sinx cos x$

becomes

$(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx cos x$

Proved

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3 years ago

How do I do this problem

Marina86 [1]

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

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HELP ME AND ANSWER THIS IK ITS -1 BUT ITS AN MULTIPLE CHOICE!! please don't guess thank you :) and I'll mark you as Brainlest :D

ankoles [38]

1 and 0 would also work for this inequality!

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2 years ago

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malfutka [58]

Answer:

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Step-by-step explanation:

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What is the total cost, with 8% sales tax, of a $75 pair of shoes​

What is the total cost, with 8% sales tax, of a $75 pair of shoes