Answer:
i think you'll need 1 foot 6 inches of wood
Step-by-step explanation:
Answer: 336
Step-by-step explanation:
8 * 3 * 14
Answer:
6 inches by 6 inches
Step-by-step explanation:
Area of the square = 256 inches ²
Given equation:
(x + 10)² = 256
Where,
x = side measure of the original square
(x + 10)² = 256
(x + 10)(x + 10) = 256
x² + 10x + 10x + 100 = 256
x² + 20x + 100 = 256
x² + 20x + 100 - 256 = 0
x² + 20x - 156 = 0
Solve the quadratic equation by factorization
Find two numbers whose product is -156 and sum is 20
The numbers are -26 and 6
x² + 26x - 6x - 156 = 0
x(x + 26) - 6(x + 26) = 0
(x + 26) (x - 6) = 0
x + 26 = 0 or x - 6 = 0
x = -26 or x = 6
Side length of a square can not be negative
Therefore,
x = 6 inches
6 inches by 6 inches
Step-by-step explanation:
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this is the link for explanation copy and paste it to see
2y=1+5x (moving 5x to the other side) {equation 1}
Y= (1+5x)/2 (dividing both sides by 2)
Substitute {Y=(1+5x)/2} into equation: (-8x+9y=19)
Therefore giving you:
-8x+9(1+5x)/2=19
-8x+(9+45x)/2=19
(multiply through by 2 to remove the fraction)
-16x+9+45x=38
45x-16x=38-9(grouping like terms)
29x=29
Divide both sides by 29
X=1
Substitute X=1 into equation (-5x+2y=1)
-5(1)+2y=1
(-5)+2y=1
2y=1+5
2y=6
2y/2=6/2 (dividing both sides by 2)
Y=3.
:X=1 and Y=3