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3 years ago

What is the exact value of cos 5pi/4 radians?

1 answer:

5 0

-Radical two (square root of two)/2
Because:
5pi/4 = 225 the reference angle for that is 45 degrees, cos 45 = Radical two (square root of two)/2 and because 225 is in quadrant three and only tangent is positive in quadrant 3, the cos is negative

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aalyn [17]

Answer:

2/24

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Step-by-step explanation:

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3 years ago

If a/4 = b/7, what is the value of (a-b) / b?

DerKrebs [107]

First we will find out the values of a
a/4=b/7
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Now
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2 years ago

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2 years ago

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A teacher teaches 8 students how to fold an origami model. Each of these students goes on to teach 8

valentina_108 [34]

Answer:

8x8= 64

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Let me know if i helped!

8 0

2 years ago

The graph of which of the following equations contains the points (2,3) and (3,2)

Crazy boy [7]

Answer:

$y = 5 - x$

Step-by-step explanation:

The graph of the equation that will contain the points (2, 3) and (3, 2) is the graph that has a slope value that is equivalent to the slope value of the line running through the two points.

Slope of the line running through (2, 3) and (3, 2):

$slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - 3}{3 - 2} = \frac{-1}{1} = -1$ .

Slope (m) = -1.

The equation, $y = 5 - x$ , is given in the slope-intercept form, which means it has a slope value of -1. I.e. the term "-x" is equivalent to -1x. So therefore, the graph of the equation that contains the points (2, 3) and (3, 2) is $y = 5 - x$ .

5 0

2 years ago