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What is 2e+22's number form?

 \(2^{22} = 4194304\)

Mrs.Young's tennis court is a rectangle that is 30 feet wide by 70 feet long. What is the perimeter?

really?

\(P = 2w + 2l = 2(30)+2(70) = 60+140=200feet\) 

(5x+4) - (1-2x)

\((5x+4) - (1-2x) = (5x - (-2x)) + (4-1) = 7x+3\) 

Solve for x:
(-(12 i)-5)+x^2 = 0

(-(12 i)-5)+x^2 = x^2+(-5-12 i):
x^2+(-5-12 i) = 0

The left hand side factors into a product with two terms:
(x+(-3-2 i)) ((3+2 i)+x) = 0

Split into two equations:
x+(-3-2 i) = 0 or (3+2 i)+x = 0

Add 3+2 i to both sides:
x = 3+2 i or (3+2 i)+x = 0

Subtract 3+2 i from both sides:
Answer: |  x = 3+2i               or             x = -3-2i

what is (x+(3+2i)) times (x-(3+2i)) ?

note that

\((a+b)(a-b)=a^2 - b^2\) 

and we get

\( (x+(3+2i)) (x-(3+2i))= x^2 -(3+2i)^2\)

\((3+2i)^2 = (9-4)+12i=5+12i\)

\( (x+(3+2i)) (x-(3+2i)) = x^2-5 -12i\)

nevermind, just realized the answer. oops! thanks anyway!

wow, 1 8 pi, and it was delicious.

or, I ate pie, and it was delicious

We can't give any hard and fast rules, here.....for example :

20  = 3x + 5

We would subtract the 5 and divide by 3 to find x

However

20 = 3(x + 5)

We would divide by 3  and then subtract 5 to find x

So....it depends upon what you are given as to the order of operations.......

Never, or it will change the answer. (also, PEMDAS is mathmaticly untrue.)

For example, using PEMDAS for 2+1/2, you would divide first to get .5, and get 2.5

Without, it could be 2+1= 3, and then 3/2, and those are diffrent answers.

Though there are exeptions. 

Like if its 7(3+x)=42, you don't HAVE to use the distributive property first. You could divide boths sides by 7, and then it would be 3+x=6. 

You can use proportions. x     =     20

                                         35         100

You multiply 35 and 20, which gives you 700, and divide it by 100, so you get $7 discount, to get the total of the volleyball price after the discounted price, you subtract. 35-7= 28

A 20% discount means that the volleyball just sold for 80% of its normal cost....so

35 * .80   = $28          [the discount was $7 ]

30 * 25.98   = 779.4     [ no rounding necessary ]

I think that we're trying to solve for "x" here and m is denoting meters....so we have

91 = (2x+3)(x+2)    simplify on the right

91  =  2x^2 + 3x + 4x + 6    

91 = 2x^2 + 7x + 6     subtract 91 from both sides

2x^2 + 7x - 85  =  0    factor

(2x + 17) (x - 5)   = 0 

Set each factor to 0 

2x + 17 = 0                                          x -  5   =  0

subtract `17 from both sides            add 5 to both sides

2x = -17                                               x  = 5

divide both sides by 2                     

x = -17/2

So...the solutions are  x = -17/2   or  x = 5

You don't. You honestly don't. I don;t know a single scenario where that thing is helpful or you couldn't use the law of sines or cosines.

76=x-x^2  subtract x from both sides and add x^2 to both sides

x^2 - x + 76  = 0

This has no real solutions....the complex solutions are

x =  (1± i sqrt(303)) / 2

76=x-x^2 = {x=-(((sqrt(303)*i-1)/2)), x=((sqrt(303)*i+1)/2)}

This question has already been asked and answered good sir or ma'am.

Believe it or not there are still weirdos who use radians on their calculators 

I would assume they are using cosine on their calculator in degree mode.

what does  times mean

x*cos(44)=19 = x≈26.41