All Answers 355955 Answers

17.50 + 10.50 =$28.00 the cost of the 2 items before tax.

$28.00 x 1.06 =$29.68 the cost of the 2 items plus 6% sales tax.

What is (2.26*10^-6 ohm cm)20/ 1.5*10^-1cm^2

=0.000301333......etc.

Solve for y:
2 sqrt(2) y-3 = 5 1/sqrt(2) y+1

Rationalize the denominator. (5 y)/sqrt(2) = (5 y)/sqrt(2)×(sqrt(2))/(sqrt(2)) = (5 y sqrt(2))/(2):
2 sqrt(2) y-3 = (5 sqrt(2) y)/(2)+1

Put each term in (5 y sqrt(2))/2+1 over the common denominator 2: (5 y sqrt(2))/2+1 = (5 sqrt(2) y)/2+2/2:
2 sqrt(2) y-3 = (5 sqrt(2) y)/2+2/2

(5 sqrt(2) y)/2+2/2 = (5 sqrt(2) y+2)/(2):
2 sqrt(2) y-3 = (5 sqrt(2) y+2)/(2)

Multiply both sides by 2:
2 (2 sqrt(2) y-3) = (2 (5 sqrt(2) y+2))/(2)

(2 (5 sqrt(2) y+2))/(2) = 2/2×(5 sqrt(2) y+2) = 5 sqrt(2) y+2:
2 (2 sqrt(2) y-3) = 5 sqrt(2) y+2

Expand out terms of the left hand side:
4 sqrt(2) y-6 = 5 sqrt(2) y+2

Subtract 5 sqrt(2) y from both sides:
(4 sqrt(2) y-5 sqrt(2) y)-6 = (5 sqrt(2) y-5 sqrt(2) y)+2

4 (sqrt(2) y)-5 (sqrt(2) y) = -(sqrt(2) y):
-sqrt(2) y-6 = (5 sqrt(2) y-5 sqrt(2) y)+2

5 sqrt(2) y-5 sqrt(2) y = 0:
-(sqrt(2) y)-6 = 2

Add 6 to both sides:
(6-6)-sqrt(2) y = 2+6

6-6 = 0:
-sqrt(2) y = 2+6

2+6 = 8:
-sqrt(2) y = 8

Divide both sides of -sqrt(2) y = 8 by -sqrt(2):
-(sqrt(2) y)/(-sqrt(2)) = 8/(-sqrt(2))

(-sqrt(2))/(-sqrt(2)) = 1:
y = 8/(-sqrt(2))

Multiply numerator and denominator of 8/(-sqrt(2)) by -1:
y = (-8)/sqrt(2)

Rationalize the denominator. (-8)/sqrt(2) = (-8)/sqrt(2)×(sqrt(2))/(sqrt(2)) = (-8 sqrt(2))/(2):
y = (-8 sqrt(2))/(2)

(-8)/2 = (2 (-4))/2 = -4:
Answer: |y = -4 sqrt(2)

= k2ho76

what class is this for 

they are 19 20 & 21

19+20+21=60

3 feet 11 inches becuase 12*4=48-1=3 feet 11 inches

Simplify the following:
(abs(3-6))/2

3-6 = -3:
(abs(-3))/2

Since -3<=0, then abs(-3) = 3:
Answer: |3/2

Let the Base =B

Let the Height=h

Hypoteuse =H

B^2 + h^2 =H^2, which you know;..............(1)

[B + h ] / 2=Area, which you know...........(2)

Solve for h and B, because you have 2 simultaneous equations.

There are 100 centimeters in a meter so multiply 2 meters by 100.

The answer will be 200 centimeters

There are 12 inches in a foot so divide 47 inches by 12.

The answer is approximately 4 feet.

 the awnser is 32

There are two possible values for X, so let's make an equation for each situation.

X + (-5) = 4 ----> X - 5 = 4 (adding a negative is just subtracting)

X - (-5) = 4 ----> X + 5 = 4 (subtracting a negative is like adding)

Now, we isolate X for each equation.

Add 5 to both sides of the equal sign in the first equation to get:

X = 9

Subtract 5 from both sides of the equal sign in the second equation to get:

X = -1

Therefore, X equals 9 and -1

Could you possibly elaborate on your question? You didn't include a variable or parameters.

Let the numbers =n, n+1, n+2

n+(n+1)+(n+2) =60

3n = 60 - 1 - 2

3n = 57 divide both sides by 3

n= 57 /3

n=19, 20, 21 are your 3 numbers.

Rational numbers are numbers that can be defined as a ratio with both the numerator and denominator being a whole number. For example: 0.5 can be represented as 1/2 so it is a rational number.

Numbers like π (pi) and e are irrational numbers since they cannot be expressed as a fraction/ratio with both the numerator and denominator being whole numbers.

Therefore, -3 8/9 is a rational number since it can be expressed as -35/9

how do you work out surds with letters in them? 

eg . x(sqrt2) = 10 divide both sides by sqrt(2)

x = 10 / sqrt(2)

integral(2.1250000000005313+3419763455093591120200) dx = 3.4197634550935911202021250000000005313×10^21 x+constant

1,250 / 16 =78.125 - 1 unit of chlorine treats 78.125 gallons of water. So,

y =78.125x - Now x varies directly with y.

3455 is = to 9% of how much?

Let the number =x

.09x =3,455 divide both sides by .09

x =3,455 / .09

x = 38,388.89