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In-s [12.5K]
3 years ago
15

Need help finding this

Mathematics
1 answer:
polet [3.4K]3 years ago
4 0
5(6x+5)-2(4x-1) = 30x+25-8x+2 = 22x+27
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if f(x) = ax^6 + bx^4 + cx^3 where a,b, and c are integers, how many distinct rational zeros could f(x) have
natita [175]

You can rewrite your function as

f(x) = x^3(ax^3+bx+c)

This implies that

f(x)=0 \iff x^3=0\quad\lor\quad ax^3+bx+c=0

Now, we have x^3=0\iff x=0, so it counts as a solution.

On the other hand, depending on the coefficient a, b and c, the cubic equation

ax^2+bx+c=0

can have either one or three solutions.

So, we have the solution x=0, and then one or three solutions coming from the cubic part. The equation as a whole thus have either two or four solutions, depending on the coefficients.

8 0
4 years ago
A University of Florida student earns $15 per day delivering advertising brochures door-to-door, plus 75¢ for each person he int
aleksley [76]
$15 * 3 days = $45

$57 - $45 = $12

$12 / $0.75 = 16

He interviews 16 people to earn a total of $57.
6 0
3 years ago
Rectangle ABCD has vertices A(1, 2), B(4, 2), C(1, - 2), and D(4, - 2). A dilation with a scale factor of 6 and centered at the
Rom4ik [11]

Answer:

I'll show you the dilution of point A and you can figure out the answer

Step-by-step explanation:

not sure what level you are in at school. Since the dilation is about the origin, it very straight forward. Basically you multiply the scale factor by each coordinate of a given point.

so the dilated point for A is in the x direction 1x6 and in the y direction 2x6, resulting in A'= (6,12).

do this for each point and you will have the answer

5 0
3 years ago
Find z such that the proportion of observations that are less than z in a standard normal distribution is 0.23. (Enter your answ
-BARSIC- [3]

Answer:

-0.74

Step-by-step explanation:

The computation of Z is shown below:

According to the question, data provided in the question is as follows

P(Z >  Z) = 0.23

Based on the above information, the calculation for Z is

Use the table of the standard normal distribution for z

By using this the Z value comes is -0.74

hence, in case of the standard normal distribution, the value of z is -0.74 and the same is to be considered

8 0
4 years ago
If C={-10,-9,-8,-7,-6,-5} and D={-6,-5,-4,-3,-3,-1} what is CnD
nalin [4]

Answer:

-123 and 203 130 31804

Step-by-step explanation:

Apex idk

5 0
3 years ago
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