3 years ago

Verify identity cot^2x + csc^2x = 2csc^2x - 1

Mathematics

1 answer:

alexdok [17]3 years ago

7 0

Lhs= (c/s)^2 + 1/s^2 = (c^2 + 1)/s^2 = (2 - s^2)/s^2

rhs = (2/s^2) - 1 = (2 - s^2)/s^2 = lhs

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Please help! 10 points and brainlyist!!

yarga [219]

Answer:

1.80 in^3

1.0 fluid ounces^3

Step-by-step explanation:

volume of a cone = 1/3 πr²h

π = 3.14

r = 2.2 / 2 = 1.1

h = the value of h can be determined using Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c = hypotenuse

1.8² = 1.1² + b²

3.24 = 1.21 + b²

3.24 - 1.21 = b²

2.03

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Volume = 1/3 x 3.14 x 1.21 x 1.42 = 1.80 in^3

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2 years ago

a car rent is $240 per week plus $1.00 per mile. Find the rental cost for a two week trip of 500 miles for a group of three peop

tankabanditka [31]

Answer:

I'm not sure if you mean each person has a car for 2 weeks and travels 500 miles each but if so the rental cost is $2,940.

If it is just one car for all 3 people the rental cost is $980

Step-by-step explanation:

renatl cost = r

weeks = w

miles = m

the equation would be r = $240w + $1m

and if there are 3 people you mulitply the answer by 3

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2 years ago

A meuseum added 18 painting to its collection in may. This is 20% of paintings the meuseum has in April. How many paintings did

Alexus [3.1K]

18 / x = 20 / 100

20x = 1800

x = 90

The museum had 90 paintings in April.

Hope this helps!! :)

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2 years ago

The world's largest pumpkin pie weighed 2020 pounds. The pie was 12 and one-third feet across and one-third foot thick. Write a

Yanka [14]

Answer:

$\frac{1}{3}$ = $\frac{2}{6}$

To find equivalent fractions, multiply be any number that is the same for the numerator/denominator

You can also divide, but it must be divisible by both the numerator/denominator

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3 years ago

What will be the coordinates of Q?<br> A (-6, -5)<br> B (-5, -6)<br> C (5, 6)<br> D (6, 5)

Svetradugi [14.3K]

Answer:

I Dont understand

Step-by-step explanation:

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2 years ago