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Sloan [31]
4 years ago
11

Simplify for a lot of points (1-sin^2x)(1-tan^2x)

Mathematics
1 answer:
notka56 [123]4 years ago
6 0
1/sin^2x-1/tan^2x=
1/sin^2x-1/ (sin^2x/cos^2x)<<sin tan= sin/cos>>
= 1/sin^2x- cos^2x / sin^2x
= (1- cos^2x) / sin^2x <<combining into a single fraction>>
sin^2 x / sin^2x <<since 1- cos^2 x sin^2 x

=1
this simplifies to 1.
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Round 7,464,000 to the nearest hundred thousand
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If ONE PAIR of opposite sides of a quadrilateral are BOTH parallel and congruent, the quadrilateral is a parallelogram. a TRUE b
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a. TRUE.

Step-by-step explanation:

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A boat is 20 ft away from a point perpendicular to the shoreline. A person stands at a point down the shoreline so that a 60° an
garri49 [273]

Answer:

23.09 feet.

Step-by-step explanation:

Please find the attachment.

Let x be the distance between the person and the boat.

We have been given that a boat is 20 ft away from a point perpendicular to the shoreline. A person stands at a point down the shoreline so that a 60° angle is formed between the closest point to the boat, the person, and the boat.  

We can see from our attachment that the boat, shoreline and position of person forms a right triangle, where side with 20 feet length is opposite side and x is hypotenuse for our given angle.

Since we know that Sine relates the opposite and hypotenuse of a right triangle, so we will use Sine to find the value of x.

\text{Sine}=\frac{\text{Opposite}}{\text{Hypotenuse}}

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x=\frac{20}{\text{Sin}(60)}

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3 years ago
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almond37 [142]

Answer:

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We need to find the area of the piece

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