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MaRussiya [10]
3 years ago
8

Can you help me from 1 to 8 and tell me how you get the answers for each one of them please

Mathematics
1 answer:
weqwewe [10]3 years ago
6 0

Answer:

See below.

Step-by-step explanation:

1) 4x + 8 = 2x + 10

2x = 2

x = 1

2) 9y - 3 = 6y + 12

3y = 15

y = 5

3) 8m + 4 =  4m - 20

4m = -24

m = -6

4) 11z - 14 = 5z + 4

6z = 18

z = 3

5) 3q - 6 = 8q - 6

5q = 0

q = 0  

6) 20n + 7 = 6n - 21

14n = -28

n = -2  

7) 2w - 8 = 7w - 3

5w = -5

w = -1

8) 9k + 4 = k - 12

8k = -16

k = -2

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What is the length of BC?<br> pls help
zheka24 [161]
It’s an isosceles triangle, so those two sides are equal:

3x-15=x+33
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3 0
3 years ago
What is the quotient of (x3 - 3x2 + 5x – 3) = (x - 1)?
IRINA_888 [86]

Note: Consider "÷" sign instead of "=".

Given:

(x^3-3x^2+5x-3)\div (x-1)

To find:

The quotient.

Solution:

We have,

(x^3-3x^2+5x-3)\div (x-1)

It can be written as

=\dfrac{x^3-3x^2+5x-3}{x-1}

Splitting the middle terms, we get

=\dfrac{x^3-x^2-2x^2+2x+3x-3}{x-1}

=\dfrac{x^2(x-1)-2x(x-1)+3(x-1)}{x-1}

Taking out the common factor (x-1), we get

=\dfrac{(x-1)(x^2-2x+3)}{x-1}

Cancel the common factors.

=x^2-2x+3

The quotient is x^2-2x+3.

Therefore, the correct option is D.

7 0
2 years ago
Read 2 more answers
6 batteries cost 30 dollars
solniwko [45]

Answer: 5 dollars for every pack

Step-by-step explanation:

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Does this help? Let me know in the comments.

8 0
3 years ago
The graph of a linear function passes through the point (1, 1) and has a slope of -3. What is the equation of the function in sl
Zigmanuir [339]
Use the point-slope formula
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5 0
3 years ago
Which of the following shows that polynomials are closed under subtraction when polynomial 5x − 6 is subtracted from 3x2 − 6x +
Bezzdna [24]
3x^2 − 6x + 2 - (<span>5x − 6)
= </span>3x^2 − 6x + 2 -  5x +  6
= 3x^2 - 11x + 8

hope it helps
5 0
3 years ago
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