All Answers 358504 Answers

x^2=225 take the square root of both sides

x =sqrt(225)

x = 15

1.23 = 1 23/100

3(x+1)+4=2(x-1)

3x + 3 + 4 =2x - 2

3x - 2x =-2 -3 -4

x = - 9

RATIONAL!!.

=10^33

Simplify the following:
2 sqrt(3)+7 sqrt(3)-sqrt(2)

Add like terms. 2 sqrt(3)+7 sqrt(3)-sqrt(2) = 9 sqrt(3)-sqrt(2):
Answer: |9sqrt(3) - sqrt(2)

math

4*4 1/5

4 x 21/5 =84/5 =16 4/5

Use a calculator and see what you get.

Use a calculator: 49 - 17 =32

Find the range of the list:
(2, 4, 9)

The range of a list is given by:
(largest element)-(smallest element)

(2, 4, 9) We see that the largest element is 9:
9-(smallest element)

(2, 4, 9) We see that the smallest element is 2:
9-2

9-2 = 7:
Answer: |7

or yu could do 18divided by 120 times 100

Enter: 18 / 120 x 100 =15

if a = (4, -5) and b = (7, -9), what is the length of ab

Solve for x:
6 = 6 x-x^2

6 = 6 x-x^2 is equivalent to 6 x-x^2 = 6:
6 x-x^2 = 6

Multiply both sides by -1:
x^2-6 x = -6

Add 9 to both sides:
x^2-6 x+9 = 3

Write the left hand side as a square:
(x-3)^2 = 3

Take the square root of both sides:
x-3 = sqrt(3) or x-3 = -sqrt(3)

Add 3 to both sides:
x = 3+sqrt(3) or x-3 = -sqrt(3)

Add 3 to both sides:
Answer: |x = 3+sqrt(3)        or          x = 3-sqrt(3)

Did you dream this one up? There is "No solution" to it!!.

2,4,9,16,27,40,57,...

  2 +  2 =  4

  4 +  5 =  9

  9 +  7 = 16

16 +11 = 27

27 +13 = 40

40 +17 = 57

        ...

2,5,7,11,13,17,... are prime numbers.

negative

x^ (- 0.75)     = 1 / { X ^(3/4)} 

6sprt64^6b^-2

Simplify the following:
(6 (sqrt(64))^6)/(b^2)

Multiply exponents. (sqrt(64))^6 = 64^(6/2):
6/b^2 64^(6/2)

The gcd of 6 and 2 is 2, so 6/2 = (2×3)/(2×1) = 2/2×3 = 3:
(6×64^3)/b^2

64^3 = 64×64^2:
(6×64×64^2)/b^2
(6×64×4096)/b^2

64×4096 = 262144:
(6×262144)/b^2

6×262144 = 1572864:
Answer: |1572864/b^2