Ask question

Ask question

All categories

3 years ago

15

PLEASE HELP :( A 12,000 gallon man made pond is being filled at a rate of 25 gallons per minute. At this rate, how many minutes

will it take to fill this pond 1/4 full?

2 answers:

marshall27 [118]3 years ago

7 0

It will take 120 minutes !

notsponge [240]3 years ago

3 0

The answer is 120 minutes

Step by step answer:

1/4 of 12,000 is 3,000

3,000/25 = 120

You might be interested in

Can you please help and I need help fast

KonstantinChe [14]

Answer:

A

Step-by-step explanation:

He borrowed money so he has -5 dollars and but he payed 2 back, so now he needs to pay $3

6 0

2 years ago

Read 2 more answers

PLEASE PLEASE PLEASE<br> HELP ME!!!!!

Bond [772]

Answer:

3 adjacent

4. complementary

4 0

2 years ago

) f) 1 + cot²a = cosec²a

notsponge [240]

Answer:

It is an identity, proved below.

Step-by-step explanation:

I assume you want to prove the identity. There are several ways to prove the identity but here I will prove using one of method.

First, we have to know what cot and cosec are. They both are the reciprocal of sin (cosec) and tan (cot).

$\displaystyle \large{\cot x=\frac{1}{\tan x}}\\\displaystyle \large{\csc x=\frac{1}{\sin x}}$

csc is mostly written which is cosec, first we have to write in 1/tan and 1/sin form.

$\displaystyle \large{1+(\frac{1}{\tan x})^2=(\frac{1}{\sin x})^2}\\\displaystyle \large{1+\frac{1}{\tan^2x}=\frac{1}{\sin^2x}}$

Another identity is:

$\displaystyle \large{\tan x=\frac{\sin x}{\cos x}}$

Therefore:

$\displaystyle \large{1+\frac{1}{(\frac{\sin x}{\cos x})^2}=\frac{1}{\sin^2x}}\\\displaystyle \large{1+\frac{1}{\frac{\sin^2x}{\cos^2x}}=\frac{1}{\sin^2x}}\\\displaystyle \large{1+\frac{\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}}$

Now this is easier to prove because of same denominator, next step is to multiply 1 by sin^2x with denominator and numerator.

$\displaystyle \large{\frac{\sin^2x}{\sin^2x}+\frac{\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}}\\\displaystyle \large{\frac{\sin^2x+\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}$

Another identity:

$\displaystyle \large{\sin^2x+\cos^2x=1}$

Therefore:

$\displaystyle \large{\frac{\sin^2x+\cos^2x}{\sin^2x}=\frac{1}{\sin^2x}\longrightarrow \boxed{ \frac{1}{\sin^2x}={\frac{1}{\sin^2x}}}$

Hence proved, this is proof by using identity helping to find the specific identity.

6 0

2 years ago

Solve what is 2-2 plus 2 times 2 divide by 2

poizon [28]

Answer:

2

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Find all possible values of the digits Y, E, A, R if YYYY - EEE + AA - R = 1234, and different letters represent different digit

schepotkina [342]

Answer:

Y: 2

E: 9

A: 1

R: 0

Step-by-step explanation:

If we used the value Y = 2, E = 9 , A = 1 and R = 0

in the given equation i.e

$YYYY - EEE + AA - R = 1234$ .

From LHS,

Putting the value of Y,E, A and R in the given question we get

$2222-999+11-0\\=\ 1223\ + 11\\=\ 1234$

=RHS

$Therefore\ the\ value\ of \ Y, E, A, R\ is\ 2\ , \ 9 , \ 1\ and\ 0$

7 0

3 years ago