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asambeis [7]
3 years ago
12

Please help me answer the question in the picture

Mathematics
2 answers:
Genrish500 [490]3 years ago
6 0
$338 / 2 = $169

A = a^2 = 169
a= 13

answer
13ft
Readme [11.4K]3 years ago
4 0

divide total price by per sq foot price to find area of the kitchen

338/2 = 169 square feet

 since the room was square

 find square root of 169

sqrt(169) = 13

 kitchen is 13 feet wide

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This revolves around exact trig values - no easy way to say this, you just need to memorise them. They are there for sin cos and tan, but I will give you the main tan ones below - note this is RADIANS (always work in them when you can, everything is better):

tan0: 0
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tanpi/2: undefined

Now we just need to equate -2pi/3 to something we understand. 2pi/3 is 1/3 of the way round a circle, so -2pi/3 is 1/3 of the way round the circle going backwards (anticlockwise), so on a diagram we already know it's in the third quadrant of the circle (somewhere between pi and 3pi/2 rads).
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Now we just need to work out if it's positive or negative. You can look up a graph of tan and it'll show that the graph intercepts y at (0,0) and has a period of pi rads. Therefore between pi and 3pi/2 rads, the values of tan are positive. Therefore, this gives us our answer of sqrt(3).
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4 years ago
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nadezda [96]

Answer:

<h2><u><em>Y= 10/3 or 3.333....</em></u></h2>

Step-by-step explanation:

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y= 10/3 or 3.33..

 

<h2><u><em>HAVE A NICE TIME :)</em></u></h2><h2><em>pls give a </em><u><em>brainliest</em></u><em> if it is CORRECT</em></h2>
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Answer:

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Step-by-step explanation:

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6 0
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Answer:

SA = 201 in^2

Step-by-step explanation:

The formula for surface area of a sphere is

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r = d/2

r = 8/2 =4

Substitute in what we know.

SA = 4 *pi *4^2

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Letting pi = 3.14

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3 years ago
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