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3 years ago

What are the real zeros of x^3+4x^2-9x-39

Mathematics

1 answer:

Shalnov [3]3 years ago

8 0

Answer:

3.07

Step-by-step explanation:

The zeros of the function also called the roots are the x-intercepts where the function crosses the x-axis. The zeros are the x-values at these points. To find them, graph the function and look closely around the x-axis for intercepts.

See attached picture.

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Use the distributive property and the greatest common factor (GCF) to write an equivalent expression: 32x + 24 Question 2 option

Anna11 [10]

Answer:

D. 8(4x + 3)

Step-by-step explanation:

32x + 24

The greatest common factor between 32 and 24 is 8.

Options

A. 9(4x + 2) = 36x + 18 (Incorrect!)

B. 5(6x + 5) = 30x + 25 (Incorrect!)

C. 4(8x + 7) = 32x + 28 (Incorrect!)

D. 8(4x + 3) = 32x + 24 (Correct)

5 0

3 years ago

4. Name the first five terms of the arithmetic sequence. a1 = -35, d=4

eduard

Answer:

Step-by-step explanation:

We first have to write the equation for the sequence, then finding the first five terms will be easy. Follow the formatting:

$a_n=a_1+d(n-1)$ and we are given enough info to fill in:

$a_n=-35+4(n-1)$ and

$a_n=-35+4n-4$ and

$a_n=-39+4n$ or in linear format:

$a_n=4n-39$ where n is the position of the number in the sequence. We already know the first term is -35.

The second term:

$a_2=4(2)-39$ so

$a_2=8-39$ and

$a_2=-31$

The third term:

$a_3=4(3)-39$ and

$a_3=12-39$ so

$a_3=-27$ and we could go on like this forever, but the nice thing about this is when we know the difference all we have to do is add it to each number to get to the next number.