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3 years ago

Anja divides (8x3 – 36x2 + 54x – 27) by (2x – 3) as shown below. What error does Anja make

Mathematics

2 answers:

love history [14]3 years ago

8 0

Answer:

54x - 75 / 2x - 3

Step-by-step explanation:

8 * 3 - 36 * 2 + 54x - 27 / 2x -3

you will need to multiply 8 with 3, and 36 with 2

which will give you 24 and 72

24 - 72 + 54x - 27 / 2x - 3

then up common terms together but they cant change places as in the numbers in the numerators stay with the other numbers in the numerator

54x - 75 / 2x - 3

nikitadnepr [17]3 years ago

4 0

4x2 - 12x+9

2x-3) 8x2 – 36x2 + 54x-27

8x3–1282

-24x2 + 54 x

-24x2 + 36%

18x-27

-54

She makes a subtraction error

She makes an error choosing the x-term in the quotient.

She makes a multiplication error

She makes an error rewriting the problem in long division

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3 years ago

What is the distance from point (– 1, 3) to the line 3x – 4y = 10?

natta225 [31]

Answer:

5 units

Step-by-step explanation:

The distance from a point (m, n ) to the line Ax + By + C = 0 is given by

d = $\frac{|Am+Bn+C|}{\sqrt{A^2+B^2} }$

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2 years ago

Find the length of the segment with endpoints of (3,2) and (-3,-6).

MakcuM [25]

The formula of the length of the segment AB:
$A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}$
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$A(3;\ 2)\to x_A=3;\ y_A=2\\\\B(-3;\ -6)\to x_B=-3;\ y_B=-6$
Substitute:
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