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3 years ago

Factorise fully 3x-9x^2

Mathematics

1 answer:

artcher [175]3 years ago

6 0

Answer:

$3x(1 - 3x)$

Step-by-step explanation:

We can factor the expression by using the common factor.

Pull out 3x from the expression.

$3x - 9 {x}^{2} \\ 3x(1 - 3x)$

Common Factor is similar to dividing by the term we pull out. When we pull out the term, we divide the whole expression and keep the term out of the expression.

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PLEASE HELP ME QUICK DUDES!!

musickatia [10]

Answer:

See graph attached

Step-by-step explanation:

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3 years ago

Which statement correctly compares the two functions shown?

krok68 [10]

Answer:

Step-by-step explanation:

For Function 2

x=1 y=8

x=2 y=11

8=m+b

11=2m+b

11-8=2m-m

m=3

8=3+b

b=5

y=3x+5

Function 1

y=4x+5

Function 2

y=3x+5

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Function 1 has the same y-intercept and greater slope than Function 2.

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3 years ago

Find the distance between each pair points (-5,3) , (-4,-5)?

MrRa [10]

Answer:

$\sqrt{65}$

Step-by-step explanation:

distance between two points:

$d=\sqrt{(x_{2}-x_{1})^{2}+( y_{2}-y_{1})^{2}}$

we have:

$d=\sqrt{(-4-(-5))^{2}+(-5-3)^{2}} \\\\d=\sqrt{1^{2}+(-8)^{2}} \\\\d=\sqrt{65}$

4 0

3 years ago

Can someone please help me witch is the answer 20 points to the one who can answer first

ladessa [460]

First, let's find the slope.

Slope = (7 - (-3)) / (2 - 0) = (7 + 3) / 2 = 10 / 2 = 5

So far our equation looks like: y = 5x + b

Leta plug one of the points into our equation to find b.

-3 = 5(0) + b

Simplify.

-3 = b

The equation is: y = 5x - 3

Answer choice B is correct.

8 0

3 years ago

The temperature is -3 F at 7:00 am During the next 4 hours the temperature increases 21 F. What is the temperature at 11:00am ?

telo118 [61]

Now what you want to do is 21 + (-3). Since this is the same as saying 21 - 3, the answer is 18. Therefore, the answer is 18°F.

4 0

3 years ago