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3 years ago

Please help this is timed

Mathematics

2 answers:

siniylev [52]3 years ago

8 0

Answer:

6x - y = 1

Step-by-step explanation:

iVinArrow [24]3 years ago

3 0

Answer:

da first one

Step-by-step explanation:

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Add/sub the polynomial <br><br> (1-8x^2+3x)+(1+6x^2+x)

Scorpion4ik [409]

Answer:

-2x² + 4x + 2

Step-by-step explanation:

(1-8x²+3x)+(1+6x²+x)

= 1 - 8x² + 3x + 1 + 6x² + x

= -2x² + 4x + 2 [-2(x² - 2 - 1)]

3 0

2 years ago

What is the answer 1 plus 1

AnnZ [28]

Answer:

the answer is 4, just kidding it's 2

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Someone plz help me 1-1\2c=6

GarryVolchara [31]

1 - 1/2c = 6

1 -1 - 1/2c = 6 -1 (subtract 1 on both sides)

-1/2c = 5 (next do the inverse operation)

c = 5 ÷ 1/2

c = -10

to check your answer substitute the value of c in the equation;

1- 1/2c = 6

1- 1/2(-10) = 6

1 + 5 = 6

6 =6

6 0

2 years ago

Which best describes the graphs of the line that passes through (−12, 15) and (4, −5), and the line that passes through (−8, −9)

konstantin123 [22]

Answer:

C) They are perpendicular lines.

Step-by-step explanation:

We first need to find the slope of the graph of the lines passing through these points using:

$m = \frac{y_2-y_1}{x_2-x_1}$

The slope of the line that passes through (−12, 15) and (4, −5) is

$m_{1} = \frac{ - 5 - 15}{4 - - 12}$

$m_{1} = \frac{ - 20}{16} = - \frac{5}{4}$

The slope of the line going through (−8, −9) and (16, 21) is

$m_{2} = \frac{21 - - 9}{16 - - 8}$

$m_{2} = \frac{21 + 9}{16 + 8}$

$m_{2} = \frac{30}{24} = \frac{5}{4}$

The product of the two slopes is

$m_{1} \times m_{2} = - \frac{4}{5} \times \frac{5}{4} = - 1$

Since

$m_{1} \times m_{2} = - 1$

the two lines are perpendicular.

4 0

3 years ago

Read 2 more answers

What is the value of x in the equation 4x + 8y=40 when y=0.8

Fed [463]

8*.8=6.4
4x+6.4=40
40-6.4=33.6
33.6/4=x
8.4=x

Hope this helps :)

8 0

3 years ago

Read 2 more answers