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Hatshy [7]
3 years ago
6

Find all zeros and write in factored form (x-5)(3x^2-8x+6) =0

Mathematics
1 answer:
Snezhnost [94]3 years ago
5 0

Answer:

x = 5,  4/3+i√2/3,  4/3-i√2/3.

Step-by-step explanation:

(x-5)(3x^2-8x+6) =0

This is in factored form already. 3x^2 - 8x + 6  cannot be factored, it is prime.

One zero is x = 5.

3x^2-8x+6 = 0     Using the quadratic formula:

x = [8 +/- sqrt (64 - 4*3*6]) / 6

x =  4/3 +/- sqrt (-8) / 6

x = 4/3 +/-   2sqrt2 i / 6

x = 4/3 +/-  i√2 / 3.

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20 points.<br> Please answer and explain if possible.<br> Multiply.<br> -2y^2 * xy^4
Readme [11.4K]

When the bases are the same, you can combine the exponents.

x³   [x is where the base is]

For example:

x³ · y² = x³y²   You can't simplify this anymore because they have different bases/variables

[when you multiply a variable with an exponent by a variable with an exponent, you add the exponents together] so:

x² · x³ = x^{2+3}=x^5

[when you multiply a variable with an exponent by an exponent, you multiply the exponents together] so:

(x³)²=x^{3*2}=x^6

-2y^2*xy^4=-2x(y^{2+4})=-2xy^6

4 0
4 years ago
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Which of the following can be used to find the sum of the interior angles for any regular polygon?
TiliK225 [7]
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
It seems C is the answer.


</span>
8 0
3 years ago
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Help me show work please<br>​
GREYUIT [131]
Angle 4 would also be 135. the two on the top would add to 180, making a whole circle altogether that equals 360. so, you would do 180-135 = 45. angle 5 is 45. angle 7 would also be 135 because angle 4 and 7 are vertical angles.
5 0
3 years ago
Write at least 2 numerical expressions for each written phrase below. Then, solve.
zloy xaker [14]

Answer:

a. \frac{3}{5}(7)\text{ or }\frac{3\times 7}{5}

b. \frac{1}{6}(4\times 8)\text{ or }\frac{4\times 8}{6}

Step-by-step explanation:

In numerical expressions we write numbers with the mathematical symbols (  i.e. '+', '-' etc )

a. Given phrase,

Three fifths of seven,

\frac{3}{5}(7)

=\frac{3\times 7}{5}

=\frac{21}{5}

=4\frac{1}{5}

b. One sixth the product of four and eight,

\frac{1}{6}(4\times 8)

=\frac{4\times 8}{6}

=\frac{32}{6}

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7 0
4 years ago
PLEASE HELP ASAP!!!!
lina2011 [118]
<h3>Answer:</h3>

System

  • p + m = 10
  • 0.8m = 0.4·10

Solution

  • p = m = 5 — 5 lb peanuts and 5 lb mixture
<h3>Step-by-step explanation:</h3>

(a) Generally, the equations of interest are one that models the total amount of mixture, and one that models the amount of one of the constituents (or the ratio of constituents). Here, there are two constituents and we are given the desired ratio, so three different equations are possible describing the constituents of the mix.

For the total amount of mix:

... p + m = 10

For the quantity of peanuts in the mix:

... p + 0.2m = 0.6·10

For the quantity of almonds in the mix:

... 0.8m = 0.4·10

For the ratio of peanuts to almonds:

... (p +0.2m)/(0.8m) = 0.60/0.40

Any two (2) of these four (4) equations will serve as a system of equations that can be used to solve for the desired quantities. I like the third one because it is a "one-step" equation.

So, your system of equations could be ...

  • p + m = 10
  • 0.8m = 0.4·10

___

(b) Dividing the second equation by 0.8 gives

... m = 5

Using the first equation to find p, we have ...

... p + 5 = 10

... p = 5

5 lb of peanuts and 5 lb of mixture are required.

8 0
4 years ago
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