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maw [93]
2 years ago
9

Please answer!

Mathematics
1 answer:
eduard2 years ago
8 0

Answer:

-2x^6+7x^4+3x^3-3x^2+11x+20

Step-by-step explanation:

(-2x^3+x-5)(x^3-3x-4)\\ \\ =(-2x^3 \times x^3)+(-2x^3 \times-3x)+(-2x^3 \times -4)+(x \times x^3)+(x \times -3x)+(x \times -4)+(-5 \times x^3)+(-5 \times -3x)+(-5 \times -4)\\
\\
=-2x^6+6x^4+8x^3+x^4-3x^2-4x-5x^3+15x+20\\
\\
=-2x^6+7x^4+3x^3-3x^2+11x+20

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Can someone tell me how to write a linear equation from a graph?
kotykmax [81]

Answer:

y=mx+b

Step-by-step explanation:

4 0
2 years ago
If tan x=.67, and cos x=.83, what is sin x
Alexxandr [17]

Answer:

0.56

Step-by-step explanation:

                                  sin x

tan x is defined as -------------

                                  cos x

and we can solve this for sin x:  sin x = (cos x)(tan x)

which here is:  sin x = 0.83(0.67) = 0.56 (rounded up from 0.5561)

7 0
3 years ago
I’m not sure about this please help
castortr0y [4]

Answer:

3

Step-by-step explanation:

Evaluate x/4 + 6 (x - 12) where x = 12:

x/4 + 6 (x - 12) = 12/4 + 6 (12 - 12)

Hint: | Reduce 12/4 to lowest terms. Start by finding the GCD of 12 and 4.

The gcd of 12 and 4 is 4, so 12/4 = (4×3)/(4×1) = 4/4×3 = 3:

3 + 6 (12 - 12)

Hint: | Look for the difference of two identical terms.

12 - 12 = 0:

6×0 + 3

Hint: | Any number times zero is zero.

0×6 = 0:

0 + 3

Hint: | Simplify the expression.

Write 3 + 0 as 3:

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3 0
3 years ago
Read 2 more answers
A Real estate agent receives a commission of 9% on property sold through her. What is her commission on a sale of $42,000?
NISA [10]

Answer:

$ 3780 will be commission

Step-by-step explanation:

as the commission is 9 % of the total amount of property sold

property sold for = 42000 $

9 % of the total property= 0.09 x 42000

                                      = 3780 $

3 0
3 years ago
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6. If you draw 35 lines on a piece of paper so that no two lines are parallel to each
umka2103 [35]

The point of intersection is the point where lines intersect.

<em>There will be 595 intersections for 35 lines, where no 3 lines are concurrent.</em>

<em />

Given

<em />n = 35<em> --- the number of lines</em>

<em />d = 3<em> --- no three lines are concurrent</em>

<em />

When no three line are concurrent, it means that no three lines meet at the same point.

<u>So, the sequence of intersection is:</u>

  • <em>0 intersection for 1 line</em>
  • <em>1 intersection for 2 lines</em>
  • <em>3 intersections for 3 lines</em>
  • <em>6 intersections for 4 lines</em>

<em />

Following the above sequence, the number of intersections for n lines is:

n_k = \frac{n \times (n - 1)}{2}

In this case, n = 35.

So, we have:

n_k = \frac{35 \times (35 - 1)}{2}

n_k = \frac{35 \times 34}{2}

n_k = 35 \times 17

n_k = 595

<em>Hence, there will be 595 intersections for 35 lines, where no 3 lines are concurrent.</em>

<em />

Read more about lines of intersections at:

brainly.com/question/22368617

7 0
2 years ago
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