Answer: The value of a is 1. The value of b is -1. The value of c is 1. The value of the discriminant is -3. The quadratic function will not intersects the x-axis.
Explanation:
The standard form of a quadratic equation is,
The given function is,
It can be written as,
By comparing this equation with the standard form of quadratic equation. we get,
The formula for discriminant is,
The value of the discriminant is -3.
If D<0, it means the function have no real roots.
If D=0, it means function have one real roots.
If D>0, it means function have two real roots.
Since D<0 it means the function have no real roots. So the function will not intersect the x-axis at any point.
Answer:
1: c
2: face
Step-by-step explanation:
pretty sure
Answer:
Step-by-step explanation:
So we have the integral:
First, let's use substitution to get rid of the x/2. I'm going to use the variable y. So, let y be x/2. Thus:
Therefore, the integral is:
Now, as you had done, let's expand the tangent term. However, let's do it to the fourth. Thus:
Now, we can use a variation of the trigonometric identity:
So:
Substitute this into the integral. Note that tan^4(x) is the same as (tan^2(x))^2. Thus:
Now, we can use substitution. We will use it for sec(x). Recall what the derivative of secant is. Thus:
Substitute:
Expand the binomial:
Spilt the integral:
Factor out the constant multiple:
Reverse Power Rule:
Simplify:
Distribute the 2:
Substitute back secant for u:
And substitute back 1/2x for y. Therefore:
And, finally, C:
And we're done!
199175$ 128,500 x 0.55 = 70,675. 128,500+70,675= 199,175
Answer: equation: y=2x+4
initial value: 4
rate of change: 2/1
graph: the y-intercept at 4 and go up 2 and over 1 repeatedly until you’re able to draw a ray.
Table of values: (0,4) ; (1,6) ; (2,8) ; (3,10) ; (4,12)
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Your car has 10 gallons of gas. You use up 1 gallon for every 20 miles you travel.
Initial value: 10
Rate of change: -1/20
[[Don’t be afraid to correct me if I am wrong. It’s 1 am and I got the sudden urge to answer brain.ly questions]]
