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S_A_V [24]
2 years ago
9

5 cm What is the area? 8 cm What is the area of 5 cm x 8 cm

Mathematics
2 answers:
Nikitich [7]2 years ago
7 0
Multiply them, I guess
5 * 8 = 40 cm^2
juin [17]2 years ago
5 0

Answer:

40 cm^2

Step-by-step explanation:

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find the value of the trigonometric function sin (t) if sec t = -4/3 and the terminal side of angle t lies in quadrant II
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Answer:

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Step-by-step explanation:

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sec(t) = \frac{1}{cos(t)}

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Then

sec(t) = -\frac{4}{3}\\\\\frac{1}{cos(t)} =-\frac{4}{3}\\\\cos(t) = -\frac{3}{4}

Now square both sides of the equation:

cos^2(t) = (-\frac{3}{4})^2

cos^2(t) = \frac{9}{16}\\\\

1-sin^2(t) =\frac{9}{16}\\\\sin^2(t) =1-\frac{9}{16}\\\\sin^2(t) =\frac{7}{16}\\\\sin(t) =\±\sqrt{\frac{7}{16}}

In the second quadrant sin (t) is positive. Then we take the positive root

sin(t) =\sqrt{\frac{7}{16}}

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3 years ago
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~

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3 years ago
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