I don't understand your question, expressions do not end with equal signs. Or are you just asking how to write the expression?
2*((3*x)^3)+2(y^2) then simply replace the x with "-2" and y with "sqrt(12)"
2*(-2)^3+2(12)
-16+24
8
Answer: The length of the rectangle is 15 inches
Step-by-step explanation:
Let L represent the length of the rectangle.
Let W represent the width of the rectangle.
The perimeter of a rectangle is expressed as 2 length + 2 width
Perimeter = 2(L + W)
The rectangle has a perimeter of 52 inches. It means that
2(L + W) = 52
L + W = 52/2 = 26 - - - - - - - 1
The length of the rectangle is 4 inches more than its width. It means that
L = W + 4
Substituting L = W + 4 into equation 1, it becomes
W + 4 + W = 26
2W = 26 - 4 = 22
W = 22/2 = 11
L = W + 4 = 11 + 4 = 15
Answer:
a = 4
Step-by-step explanation:
Assuming you require to find the value of a
In a rhombus all the sides are congruent, thus
9a - 13 = 3a + 11 ( subtract 3a from both sides )
6a - 13 = 11 ( add 13 to both sides )
6a = 24 ( divide both sides by 6 )
a = 4
Then
XW = 9a - 13 = 9(4) - 13 = 36 - 13 = 23
Thus the sides of the rhombus are 23 units
Answer:
24 pounds
Step-by-step explanation:
let Andy's bike be x pounds then Barry's bike is x + 6 ( 6 pounds more )
The total weight of their bikes is 42, hence
x + x + 6 = 42
2x + 6 = 42 ( subtract 6 from both sides of the equation )
2x = 36 ( divide both sides by 2 )
x = 18
Hence Barry's bike weighs x + 6 = 18 + 6 = 24
Answer:
4x + 20 ------------ Expression
4x + 20 > 40 ------------- Inequality
4x + 20 = 40-------------Equation