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3 years ago

What's 3 divided by -3x? Is it just x or -x or -1x

Mathematics

2 answers:

Olenka [21]3 years ago

6 0

Answer:

-x

Step-by-step explanation:

when the term has a co efficient of -1, the number doesnt have to be written , but the sign stays the same :)

valentinak56 [21]3 years ago

4 0

Answer:

It would be -x

Step-by-step explanation:

when you divide a positive by a negative you get a negative which singles out x.

-1x could be simplified down to just -x which singles out that answer too

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PLEASEEE HELP MEEEE NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

3 0

2 years ago

Help pleaseee 15 points

hodyreva [135]

Answer:

55°

Step-by-step explanation:

35°+ 90° + ? =180°

? = 180° - 125°

= 55°

8 0

2 years ago

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State the gradient of the line perpendicular to the line y=3x-2

kherson [118]

Answer:

-1/3

Step-by-step explanation:

3 is the gradient of the other line

m1×m2=-1 (equation for perpendicular lines)

m1×3= -1

m1= -1/3

Pls confirm if its correct

correct me if wrong

thanks! :)

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2 years ago

What is 5.27 × 1021 expressed in standard notation?

Strike441 [17]

The standard notation would be 5,380.67. Hope this helps!

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3 years ago

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What is the fraction to this equation 0.020 Pls help fast.

sukhopar [10]

Answer: 1/50

Step-by-step explanation:

0.020 = 20/1000 = 1/50

4 0

3 years ago

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