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3 years ago

What is cot(A)? A. -3 sqrt 7/7 correct

Mathematics

2 answers:

mylen [45]3 years ago

7 0

Step-by-step explanation:

$to \: help \: you \\ \cot(A) = { (\tan(A)) }^{ - 1} = \frac{ \cos(A) }{ \sin(A) } \\ or : \\ \cot(A) = \sqrt{(1 + {( \tan(A) )}^{2} }$

katrin [286]3 years ago

5 0

Answer:

A is correct :)

Step-by-step explanation:

edge 2021

thank you! have a great day

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I need this answers asapppp!!!

lana66690 [7]

Answer:D

Step-by-step explanation:

1.000-.001=.999

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3 years ago

You need to order carpet for a room that has a length that is twice its width. If the area of the room is 288 square feet, find

Aleksandr-060686 [28]

Answer: d) 12 ft

Step-by-step explanation:

Let x be the width of the room , the the length of the room will be 2x.

We consider the shape of room is rectangle.

We know that the area of rectangle is given by :-

$A=l\times w$ , where l is length and w is width.

Given : Area of the room is 288 square feet

$\Rightarrow 288=2x\times x\\\\\Rightarrow\ 2x^2=288\\\\\Rightarrow\ x^2=144\\\\\Rightarrow\ x=-\sqrt{144}=\pm12$

Since, width cannot be negative, so the width of the room = 12 feet.

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3 years ago

Which of the following angle are reflex angles

Taya2010 [7]

Answer:

212° and 198°

Step-by-step explanation:

Reflex angles are angles greater than 180° and less than 360°

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2 years ago

Brianna went to the store to buy some clothes. She bought 9 pairs of pants at $20 per pair of pants, and 11 shirts that cost $15

stealth61 [152]

Answer:

$345 : whichever is closest

Step-by-step explanation:

Pants were $20 each and she bought 9 of them so multiply:

9x20=180

She paid $180 for 9 pants.

Shirts cost $15 each and she bought 11 of them so Mulitply:

15x11=165

She paid $165 for 11 shirts

Add both totals from pants and shirts

165+180=$345

5 0

3 years ago

Four congruent isosceles right triangles are cut from the 4 corners of a square with a side of 20 units. The length of one leg o

yanalaym [24]

Answer:

368 sq. units.

Step-by-step explanation:

We have a square of side lengths 20 units and we cut four congruent isosceles right triangles from the corners of the square.

Now, the four isosceles right triangles have one leg equal to 4 units.

Therefore, the area of four triangles = $4 \times ( \frac{1}{2} \times 4 \times 4) = 32$ sq. units.

Now, we have the area of the given square is (20 × 20) = 400 sq. units.

Therefore, the area of the remaining octagon will be (400 - 32) = 368 sq. units. (Answer)

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4 years ago