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Illusion [34]
3 years ago
7

Sin^2x/cos^2 + sinxcscx = sec^2x Identify it, please explain so I know how you did it, thanks

Mathematics
1 answer:
max2010maxim [7]3 years ago
6 0

\frac{sin^2x}{cos^2x} + sin x *cscx\\ tan^2x + \frac{sin x}{sin x} \\ tan^2x + 1\\ sec^2x

\frac{sin^2x}{cos^2x} = tan^2x

csc x = \frac{1}{sinx}

tan^2x + 1 = sec^2x

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the width of a piece of rectangular land is 5m shorter rhan 1/3 of its length .find the width of the land if the length is 60m,1
aniked [119]

Answer:

If width = 60 m, length = 195 m.

If width = 150 m, length = 465 m.

Step-by-step explanation:

The area of a rectangle is l * w or length times width.

So we can set an equation (letting w = width and x = length)

w = 1/3x - 5

Part 1: width = 60m:

60 = 1/3x - 5

65 = 1/3x

x = 195 m

Part 2: width = 150 m:

150 = 1/3x - 5

155 = 1/3x

x = 465 m

6 0
3 years ago
Please help me i would appreciate it greatly
Lera25 [3.4K]

Answer:

I would put B

Sorry if it's wrong I would have to know what the test is about to answer this

Step-by-step explanation:

4 0
3 years ago
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What’s the answer for #11 @HavannaS? Spent 20 min and clueless, thank you!!!!!!
Elis [28]
Angle 2=3, so angle 1=4 because angles ABC & BCD equal 90°. When you add together the angles of a triangle you get 180 and if you could put angle 1 and 4 together it would look like an upward version.



That is the best way I could describe it. Hope that helps.
8 0
3 years ago
A property sells for $140,000 two years after it was purchased. If the annual appreciation rate is 6%, how much did the original
kykrilka [37]

Answer:

$123,200

Step-by-step explanation:

0.06 x 2 = 0.12

140,000 x 0.12 = 16,800

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2 years ago
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artcher [175]

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Step-by-step explanation:

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