Answer:
31
Step-by-step explanation:
Since the two sides are equal, the two angles are equal
8x-1 = 5x+11
Subtract 5x from each side
8x-5x -1 = 5x-5x+11
3x-1 =11
Add 1 to each side
3x-1+1 =11+1
3x =12
Divide by 3
3x/3 =12/3
x =4
Now we can find WZY
5x+11
5(4)+11
20+11
31
Answer:
Step-by-step explanation:
7259.75 - 7100 = 159.75
he earned 159.75 in interest
159.75/ 7100= .0225
and if you convert that to percentages then its 2.25%
Answer:
B
Step-by-step explanation:
Givens
a^2 + b^2 = c^2
a = 4x
b = x + 2
c = 3x + 4
Solution
(4x)^2 + (x + 2)^2 = (3x + 4)^3 Remove all the brackets.
16x^2 + x^2 + 4x + 4 = 9x^2 + 24x + 16 Collect like terms on the left
17x^2 + 4x + 4 = 9x^2 + 24x + 16 Subtract the terms on the right
8x^2 - 20x - 12 = 0
This factors into
(4x - 12)(2x + 1)
There are 2 answers
4x - 12 = 0
4x = 12
x = 12/4
x = 3
or
2x + 1 = 0
2x = - 1
x = - 1/2
You have to look at x = -1/2 carefully. The problem is that 4x = 4*(-1/2) = - 2 which is not possible in Euclidean Geometry.
So the only answer is x = 3
The length of the garden box would be 10ft if the width is 6ft.
Answer:
a) 15
Step-by-step explanation:
x+8
substitute x value in
7+8
=15