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Crazy boy [7]
3 years ago
8

I want answer to this question

Mathematics
2 answers:
dem82 [27]3 years ago
6 0

Answer:

a=1 D

Step-by-step explanation:

insert x=1 in the equation

Mashcka [7]3 years ago
3 0

Answer:

When it is divided by x-1 and it has no remainder , then it means substituting x=1 into the polynomial is zero .Because x-1 is a factor.

2 {x}^{3}  - a {x}^{2}  - 7x + 6 \\ x = 1 \\ 2 {(1)}^{3}  - a {(1)}^{2}  - 7(1) + 6 = 0 \\ 2 - a - 7  + 6 = 0 \\ 1 - a = 0 \\ a = 1

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How can this expression be written another way?
Virty [35]

Answer:

factor using 12 (gcf)

12(5x-2)

3 0
3 years ago
Write equations for the horizontal and vertical lines passing through the point (6,9)​
Maslowich

The equations for the horizontal and vertical lines passing through the point (6,9)​ is y = 9 and x = 6 respectively

<u>Solution:</u>

Given, point is (6, 9)

We have to find the equations for horizontal and vertical lines passing through above given point.

Now, let us find horizontal line,  

We know that, horizontal line is parallel to x – axis, so slope of our required line is 0.

The point slope form is given as y - y_1 = m(x - x_1)

Then, line equation in point slope form ⇒ y – 9 = 0(x – 6)

⇒ y – 9 = 0

⇒ y = 9

Now, let us find vertical line,

We know that, vertical line is parallel to y – axis, so slope of our required line is undefined (\frac{1}{0})

Then, line equation in point slope form ⇒ y-9=\frac{1}{0}(x-6)

⇒ x – 6 = 0(y – 9)

⇒ x – 6 = 0

⇒ x = 6

Hence, the horizontal line equation is y = 9 and vertical line equation is x = 6.

7 0
3 years ago
Brainliest if correct
kari74 [83]

Answer:

A.1/3

Step-by-step explanation:

 1  Pick two points on the line and determine their coordinates.

   2 Determine the difference in y-coordinates of these two points (rise).

   3 Determine the difference in x-coordinates for these two points (run).

 4 Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

7 0
4 years ago
The length of a rectangle is 3 inches greater than its width. The perimeter of a rectangle is 27 inches. Find the length and wid
blsea [12.9K]
5.25 is the width
8.25 inch is the length
I subtracted 6 from 27 then divided the answer by 4 to get the width.
And after you find the width, you know what to do next
5 0
4 years ago
What are the possible values for b, if x2 + bx – 9 is factorable?
Elanso [62]

Answer:

Simplifying

x2 + bx + 9 = 0

Reorder the terms:

9 + bx + x2 = 0

Solving

9 + bx + x2 = 0

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '-9' to each side of the equation.

9 + bx + -9 + x2 = 0 + -9

Reorder the terms:

9 + -9 + bx + x2 = 0 + -9

Combine like terms: 9 + -9 = 0

0 + bx + x2 = 0 + -9

bx + x2 = 0 + -9

Combine like terms: 0 + -9 = -9

bx + x2 = -9

Add '-1x2' to each side of the equation.

bx + x2 + -1x2 = -9 + -1x2

Combine like terms: x2 + -1x2 = 0

bx + 0 = -9 + -1x2

bx = -9 + -1x2

Divide each side by 'x'.

b = -9x-1 + -1x

Simplifying

b = -9x-1 + -1x

Step-by-step explanation:

8 0
3 years ago
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