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3 years ago

Help plz,.cos5A - cosA / sin5A+sinA-2sin3A=cotAprove it.

Mathematics

2 answers:

RSB [31]3 years ago

8 0

Answer:

here is your answer of the question

RSB [31]3 years ago

6 0

Answer:

hope it helps you have a great day keep smiling be happy stay safe

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3 years ago

The length of a rectangle is four times its width. If the area of the rectangle is 100 in2, find its perimeter.

mamaluj [8]

Answer:

the perimeter is 50 inches squared

Step-by-step explanation:

if the length is 4 times that means the sides are 20 and 5

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3 years ago

I need #1 done (show work) will give brainliest

allochka39001 [22]

Step-by-step explanation:

<u>Statement Reason </u>

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3 years ago

Ella collects 50 bottles to recycle. Of the bottles she collects, 19 are plastic and the rest are glass.

nekit [7.7K]

QUESTION A

The total number of bottles Ella collected is
$50$

The number of bottles that are plastic is

$19$

The percentage of bottles that are plastic is

$= \frac{number \: of \: plastic \: bottles}{total \: number \: of \: bottes} \times 100\%$

$= \frac{19}{50} \times 100\%$

$= 19 \times 2\%$
$= 38\%$

Therefore 38% of the bottles are plastic.

QUESTION B

The total number of bottles that are glass is
$50 - 19 = 31$

The total number of bottles Ella collected is
$50$

The percentage of bottles that is glass is
$= \frac{number \: of \: glass \: bottles}{total \: number \: of \: bottles} \times 100\%$

$= \frac{31}{50} \times 100\%$

$= 31 \times 2\%$
$= 62\%$

Therefore 62% of the bottles are glass

8 0

3 years ago

Help plz,.cos5A - cosA / sin5A+sinA-2sin3A=cotAprove it.​

Help plz,.cos5A - cosA / sin5A+sinA-2sin3A=cotAprove it.