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2.5^2 = 6.25

But

2/5 all squared =  4/25

Use the calculator.

There is a multiply sign between the 7 and (

Nothing unless you have a value for theta.

This cannot be simplified.

For multiplying it does not matter.

mult the numerators for the top.

Multiply the denominators for the bottom

On this calculator they are called

asin,  acos,  and  atan

is that what you mean?

If you have an angle you use sin to help you find a side

If you are looking for the angle you use  asin  ( or inverse sine)

You don't need to worry about the other one.

Well does 17 ^2

Equal

8^2+15^2

If it does then it is a right angled triangle

40/100×120 minutes

You want me to prove that is true?

LHS= Sinxcosy+cosxsiny+cosxcosy+sonxsiny

RHS=sinxsiny+sinxcosy+cosxsiny+cosxcosy

RHS=LHS

You are very welcome :)

thank you hon

Whether it is increase or decrease it is usually done the same way.

you find the difference by subtracting

then you divide by the ORIGINAL PRICE.

Then you multiply by 100

26/39 × 100      percent

Hon, may you be more clearer on your questions? really sorry for askink that though

15 dollars it is simple math you take 24.99-9.99=15

2/5 to the second power is 6.25

your answer for that question is 55

If the number is say seven you would put a 1 underneath the 7 so it's into fraction form

19. beacuse you have 10 cookies you get 9 more take out the 0 from ten and replace it with a 9 what is it... 19 you add 9 +10. its not 21 thats just a vine 

n + 3/4  =  1/4

Subtract 3/4 from both sides:  n  =  -2/4   --->   n  =  -1/2

If the problem is:     y  =  6 - (1/4)(-1 + y)

Use the distributive property:  y  =  6 - (1/4)(-1) - (1/4)(y)

Simplify:                                   y  =  6 + 1/4 - (1/4)y

Simplify:                                   y  =  25/4 - (1/4)y

Multiply both sides by 4:        4y  =  25 - y

Add y to both sides:              5y  =  25

Divide by 5:                              y  =  5

true i am just in a hurry on my homework because my bedtime

The calculator will do exponents before it does negatives and multiplications.

It evaluates  -5² + 4 x 2³ like this:

First:             -(25) + 4 x 2³             (because it does the exponent before it does the negative)

Second:        -(25) + 4 x 8               (it does the other exponent)

Third:             -25 + 4 x 8                 (it does the negative)

Fourth:           -25 + 32                     (it does the multiplication

Fifth:                     7                           (it does the addition)

If you want the calculator to square -5, put parenthese around the (-5); so enter it as  (-5)^2

Similarly, if you want the 4 and the 2 multiplied together first and that answer cubed, enter that portion as

(4 x 2)^3

I don't know how you arrived at -168.

To find the inverse, follow these steps:

Step 1:  Interchange x and g(x)   --->  x  =  (1/2)g(x) + 8

Step 2:  Solve for g(x)   --->            x - 8  =  (1/2)g(x)

                                                        2x - 16  =  g(x)

Step 3:  Replace f(x) with g^-1(x)   --->   g^-1(x)  =  2x - 16