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stepladder [879]
3 years ago
14

Gina is buying the t-shirt at $10 the sales tax is 7.5%​

Mathematics
1 answer:
viva [34]3 years ago
5 0

Answer:

$17.50

Step-by-step explanation:

THATS THE TOTAL THE SALES TAX WOULD BE $0.75

thank you for your time

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Find the measure of each side of this triangles. Answer in exact form. ​ Find x and y
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Answer:

x = 24/√3

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Step-by-step explanation:

We are given that this is a right triangle as well as two angles and a side.

Given that the angles in a triangle add up to 180 degrees, and a right angle is 90 degrees, we can say that the missing angle is equal to

(180-90-30)  = 60 degrees

Next, given sohcahtoa, we can say that

sin(30) = opposite/hypotenuse = y/x

cos(30) = adjacent/hypotenuse = 12/x

tan(30) = opposite/adjacent = y/12

We want to only have one variable per equation so we can solve for the variable, so we can use

cos(30) = 12/x and tan(30) = y/12

Starting with cos(30) = 12/x, we can multiply both sides by x to remove the denominator to get

cos(30) * x = 12, and divide both sides by cos(30) to isolate the x and get

x = 12/cos(30). Next, cos(30) = √3/2, so we have

x = 12/(√3/2)

x = (12/1) / (√3/2)

x = (12/1) * (2/√3)

x = 24/√3

For y, we have

tan(30) = y/12

multiply both sides by 12 to isolate the y and remove the denominator

tan(30) * 12  = y

√3/3 * 12 = y

√3 * 4 = y

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3 years ago
BEING TIMED !! <br> In circle O, the length of arc AB is 2(pi) and the radius is 5. Find the
inn [45]

Answer:

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Step-by-step explanation:

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The square root -38 is sqrt(38)i, or approximately 6.2i.
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