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3 years ago

Factorise fully 9x squared - 6xy

1 answer:

4 0

3x(3x-2y)

you have to find a common factor between the two numbers. in this case it's three, so you just divide each number by three.

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Are these functions?

OlgaM077 [116]

Answer:

Relation 1 : Not a function

R2 : Function

R3: Function

R4: Not a function

7 0

3 years ago

Read 2 more answers

What is the slope of line PQ?

Scilla [17]

we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

Part a) Find the slope of line PQ

$P(-8,2)\ Q(4,2)$

substitute in the formula

$m=\frac{2-2}{4+8}$

$m=\frac{0}{12}=0$

Any line parallel to X-axis has slope equal to zero

the line PQ is parallel to the x-axis

therefore

the answer Part a) is

$0$

Part b) Find the slope of line MN

$M(8,6)\ N(8,-8)$

substitute in the formula

$m=\frac{-8-6}{8-8}$

$m=\frac{-14}{0}$

Anything divided by zero is undefined

m=undefined

therefore

the answer Part b) is

undefined

Part c) How are the two lines related ?

we know that

Any line perpendicular to X-axis has slope undefined

Because the term $(x2-x1)$ will always be zero

the answer Part c) is

the lines are perpendicular

8 0

3 years ago

Read 2 more answers

What is the greatest common factor of 24s3, 12s4, and 18s?

Delvig [45]

Answer:

Step-by-step explanation:

3 0

3 years ago

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What is the square root of 137

MatroZZZ [7]

The square root of 137,

$\sqrt{137}$

can't be simplified anymore, not even by the method of taking out a perfect root

x $\sqrt{x}$ (x* $\sqrt{x}$ )

Thus, the answer is 11.70 (rounded)

6 0

3 years ago

Let <img src="https://tex.z-dn.net/?f=f" id="TexFormula1" title="f" alt="f" align="absmiddle" class="latex-formula"> be the func

mafiozo [28]

Answer:

Step-by-step explanation:

The Taylor series at x=4 is

$\sqrt{x} = 2 + \frac{x-4}{4} - \frac{(x-4)^2}{64} + ...$

So,

$\sqrt{3} = 2 - \frac{1}{4} - \frac{1}{64} = 1.73$

Not too bad, eh?

7 0

3 years ago