Answer:
x=15
Step-by-step explanation:
You need to do proportions.
Since 16/12 = 1.3333333333333333333,
than you need to divide 20 by 1.323333333, so 20/1.3333333333333= 15
Answer:
5 feet
Step-by-step explanation:
To find the length of the shape, we can divide the area to the width.
Formula for area is [ a = lw ].
Since we are solving for length, the formula will be [ l = a/w ]
l = 50/10
l = 5
Best of Luck!
Answer:
Step-by-step explanation:
The given quadratic function is f(x)=2(2x^2+4x)+3
Multiplying through to open the brackets,
f(x)=4x^2 + 8x +3
To find the zeros, we will equate
f(x) = 0
Therefore,
4x^2 + 8x +3 = 0
Finding two numbers such that when we multiply them, it gives us 12xx^2 and when we add them, it gives us 8x, we have 6x and 2x. Therefore,
4x^2 + 8x +3 = 0 is expressed as
4x^2 + 2x + 6x +3 = 0
2x(2x + 2) +3(2x + 3) = 0
(2x +2)(2x +3) =0
f(x) = 2x +2)(2x +3)
