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Sphinxa [80]
4 years ago
7

Which of the following is a polynomial function in factored form with zeros at –2, 5, and 8?

Mathematics
1 answer:
Usimov [2.4K]4 years ago
7 0
(x + 2)(x - 5)(x - 8)
Substitute them into each other to get the whole equation)

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How substation y=3x-7 <br> 2y+4x=36
SSSSS [86.1K]

The solution is:

x = 5

y = 8

Step-by-step explanation:

Given equations are:

y=3x-7\ \ \ Eqn\ 1\\2y+4y = 36\ \ \ Eqn\ 2

Putting y = 3x-7 in equation 2

2(3x-7)+4x = 36\\6x-14+4x = 36\\10x-14 = 36\\10x = 36+14\\10x = 50

Dividing both sides by 10

\frac{10x}{10} = \frac{50}{10}\\x = 5

Putting x=5 in eqn 1

y = 3(5)-7\\= 15-7 = 8

Hence,

x = 5

y = 8

Keywords: Linear equation, substitution method

Learn more about linear equation at:

  • brainly.com/question/11280112
  • brainly.com/question/11286417

#LearnwithBrainly

8 0
3 years ago
Can someone help me with the questions in the picture?
Tpy6a [65]

Answer:

9. Perpendicular

10. neither

11. Perpendicular

12. neither

Step-by-step explanation:

------------------

Slope Intercept Form: y = mx + b

* M is the slope

* B is the y intercept

------------------

Lines are parallel if they have the same slope (ex. If two equations have a slope of 2)

Lines are perpendicular if they have the opposite and the reciprocal slope (ex. If 1 equation has a slope of 3 and another equation has a slope of - \frac{1}{3} )

------------------

9. Perpendicular: The slopes are reciprocal of each other and one of them is negative

10. Neither: The lines are not perpendicular because the slopes are both negative

11. Perpendicular: If you plot y=5 it is a horizontal line through 5. If you plot x=-3 it is vertical line through -3. These lines intercept and are perpendicular.

12. Neither: The slopes of both equations need to be the same to be parallel

  • Put both equations into y=mx+b
  • y = 1/2x -2 AND y = -1/2x -2
4 0
3 years ago
Please help me, appreciated if you do :)
prohojiy [21]

Answer:

6x-8=2x+4

6x-2x=8+4

4x=12

x=3

4 0
3 years ago
Which of the following problem types CANNOT be solved using the law of sines?
Harlamova29_29 [7]
Law of sines in a triangle with angles A, B, C and sides a,b,c states that 
 (sin A)/a =(sinB)/b = (sinC)/c  
 To use the above ratios, you need at least one angle and one side and one of either an angle or a side. So SSS and AAA don't work
4 0
3 years ago
Read 2 more answers
Could someone please help me
kakasveta [241]
The formula for a cone is
v = \pi \times  {r}^{2}  \times ( \frac{h}{3} )
insert 20 for your height and rearrange the formula to find the radius. Leave a comment if you need more help.
6 0
4 years ago
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