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AleksandrR [38]
3 years ago
9

Let ​ f(x)=x2−x−30 ​. What are the zeros of the function?

Mathematics
1 answer:
klio [65]3 years ago
7 0
-x = -6x + 5x

x^2-x-30=0\\\\ x^2-6x+5x-30=0\\\\ x(x-6)+5(x-6)=0\\\\ (x-6)(x+5)=0\\\\ x-6=0\vee x+5=0\\\\ x=6\vee x=-5
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The price of gold is often reported per ounce. At the end of 2005, this price was $513. At the end of 2015, it was $1060. By wha
erastova [34]

Answer:

106.63%.

Step-by-step explanation:  

We have been given that at the end of 2005, this price was $513. At the end of 2015, it was $1060.

To find the percentage of the price per ounce of gold increase we will use % increase formula.

\text{Percent Increase}=\frac{\text{Final value-Initial value}}{\text{Initial value}}\times 100

Let us substitute our given values in above formula.

\text{Percent Increase}=\frac{1060-513}{513}\times 100

\text{Percent Increase}=\frac{547}{513}\times 100

\text{Percent Increase}=1.0662768031189084\times 100

\text{Percent Increase}=106.62768031189084\approx 106.63

Therefore, the price of per ounce of gold increased by 106.63%.

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2 years ago
6 + x is an example of _____. a formula a constant a variable an expression
PtichkaEL [24]

Answer:

it is an example of an expression

Step-by-step explanation:

it is an example of an expression because it is asking a question without an equal sign. so its not a question, but an expression

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3 years ago
Cl -<br> 321<br> 1) Find the distance from A to B.
Alex787 [66]

Answer:

Step-by-step explanation:

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3 years ago
Can somebody help me?
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2 years ago
One factor of the polynomial is . which expression represents the other factor, or factors, of the polynomial?
stich3 [128]

Your question was incomplete. Please refer the content below:

One factor of a polynomial is (x+1) . which expression represents the other factor, or factors, of the polynomial 2 x² + 3 x + 1 ?

We get that if one factor of the polynomial 2 x² + 3 x + 1 is (x+1), then the other factor is (2x+1).

Factor means that we have to split an expression into multiple values and make the power of the variable linear.

For a quadratic equation, there will be 2 factors.

We have the polynomial

2 x² + 3 x + 1

Using middle term splitting, we get that:

= 2 x² + 2 x + x + 1

Taking common factor:

= 2 x ( x + 1) + 1 (x + 1)

= (2 x + 1)( x + 1)

Therefore, we get that if one factor of the polynomial 2 x² + 3 x + 1 is (x+1), then the other factor is (2x+1).

Learn more about polynomials here:

brainly.com/question/4142886

#SPJ4

7 0
1 year ago
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