X is 9 or c because -26-10 is -36 and -36/-4 is 9
9514 1404 393
Answer:
a) x = -1, x = 4
b) y = x^2 -3x -4
Step-by-step explanation:
a) We observe the x-intercepts are x = -1 and x = 4. These are the solutions to y = 0, which is usually what we want in cases like this.
The solutions are x=-1 and x=4.
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b) We know two of the factors are (x +1) and (x -4). There may be an additional constant factor for vertical scaling. One point we can check is the y-intercept.
y = a(x +1)(x -4)
For x=0, this is ...
y = a(1)(-4) = -4a
The y-intercept is y = -4, so we have a=1.
The factored equation is ...
y = (x +1)(x -4)
Multiplying this out gives the equation in standard form:
y = x^2 -3x -4
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<em>Additional comment</em>
Your teacher may want the standard form equation to be ...
x^2 -3x -4 = 0
This is the equation of two specific points: x=-1 and x=4. It is not the equation of the graph.
Answer:
t = 10
t = 100
t = 1000
Step-by-step explanation:
The area under the curve is calculated by using the following definite integral:
Evaluated areas are presented below:
t = 10
t = 100
t = 1000
Answer:
30 square feet
Step-by-step explanation:
area= length times width
Answer:
28.57
Step-by-step explanation:
Square = 4x4=16
two half circles = one whole circle = 
2²=12.566
16+12.57=28.57
