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3 years ago

(_____)^2= (cscx-1)(cscx+1)

1 answer:

4 0

$(csc(x)-1)(csc(x)+1)=csc^2(x)-1=cot^2(x)$

We know that $csc^2(x)-1=cot^2(x)$ because of the Pythagorean trig identity $1+cot^2(x)=csc^2(x)$ .

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In a group of 1200 students, there are 300 vegetarians. What is the ratio of nonvegetarians to vegetarians in the group?

Setler79 [48]

Answer:

4:1 ratio is the answer

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Can someone pls explain to me how to do this (^｡^)

34kurt

Answer:

Area: $\frac{8}{15}$ feet²

Perimeter: $\frac{44}{15} =2 \frac{14}{15}$ feet

Step-by-step explanation:

The formula of finding the area of a rectangle or square is width multiplied by length.

The formula of find the perimeter of a rectangle or square is width+width+length+length

Area: $\frac{4}{5} *\frac{2}{3} = \frac{8}{15}$ feet²

Perimeter:

$\frac{4}{5} +\frac{4}{5} +\frac{2}{3} +\frac{2}{3} =$

$\\\\\frac{12}{15} +\frac{12}{15} +\frac{10}{15} +\frac{10}{15} =\\\\\frac{24}{15} +\frac{20}{15} =\\$

$\frac{44}{15} =2 \frac{14}{15}$

4 0

3 years ago

Can anyone please help with this question?

vitfil [10]

The middle section is n(n+1)

The top row is n+2

The bottom row is 2n+1

So the rule for the total number of tiles will be the sum of the above rules...

s(n)=n(n+1)+n+2+2n+1

s(n)=n^2+n+n+2+2n+1

s(n)=n^2+4n+3

6 0

3 years ago

Please answer the following questions: 1. 1/2*8= 2. 1/4*4= 3. 1/3*6=

yan [13]

Hey there!

When we multiply fractions and whole numbers, we simply take that whole number and put it over them, and just multiply across. That gives us:

$\frac{1}{2}x*8 = \frac{8}{2} = 4$

Notice how it's four, because when we have a fraction, we divide. 8 divided by 2 equals four. Next:

$\frac{1}{4} *4 = \frac{4}{4} = 1$

4/4 is equal to 1 because 4 divided by 4 is one. 4 goes into 4 once. Next, we have:

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

That's because 6/3 = 2.

Hope this helps!

7 0

3 years ago

Read 2 more answers

Which value of x makes the equation 0.5(x + 16) = 3 + 0.25(x – 4) true?

Fynjy0 [20]

Answer:it is confusing

Step-by-step explanation:

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3 years ago