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Jet001 [13]
3 years ago
11

Factor the following by grouping. 12r^2+30ry-2xr-5xy

Mathematics
1 answer:
Darya [45]3 years ago
5 0
I'm sorry, I can't show much working for this, I just pictured it. Let me know if you need to see working:
(6r - x)(2r + 5y)
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Would it be written as <br><br><br><br> ± a=11<br> or a= ±11 <br><br> help
nataly862011 [7]
A= +11 It’s the second one
8 0
2 years ago
Ratio
Rzqust [24]

Answer:

It will be 1:2 because of the step by step

Step-by-step explanation:

1

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8

lcm is 2x2=4

And when dividing it will be 4x2=8

So it is 1:2

8 0
3 years ago
Put the linear inequality into slope-intercept form.
Ugo [173]

Answer:

y ≤\frac{7}{4}x - 5

Step-by-step explanation:

We are to put the linear inequality;

7x - 4y ≥ 20

in slope intercept form.

We can rearrange the inequality as;

-4y ≥ - 7x + 20

Dividing throughout by -4 we get;

y ≤ \frac{7}{4} x - 5

Note that the inequality sign '≥' changes to '≤' since we divided all through with a negative number.

8 0
3 years ago
I WILL GIVE BRAINLIEST!!!! - YEAR 9 MATHS!!
Serhud [2]

Answer: one point only.

Step-by-step explanation:

Since the length of the sides of the square is 9 cm, taking a point outside the square which is equidistant from point B and C will never give exact 6 cm from A.

The only way to achieve this is by taking a equidistant point inside.

You can achieve exactly 6 cm from point A from point between B and C

But can only achieve a single point if it has to be equidistant from point B and C.

3 0
3 years ago
solve the given matrix equation for X. Simplify your answers as much as possible. (In the words of Albert Einstein, "Everything
vova2212 [387]

a.

XA^{-1}=A^3

(XA^{-1})A=A^3A

X(A^{-1}A)=A^4

X=A^4

b.

AXB=(BA)^2

A^{-1}(AXB)B^{-1}=A^{-1}(BA)^2B^{-1}

(A^{-1}A)X(BB^{-1})=A^{-1}(BA)^2B^{-1}

X=A^{-1}(BA)^2B^{-1}

c.

(A^{-1}X)^{-1}=(AB^{-1})^{-1}(AB^2)

X^{-1}A=(BA^{-1})(AB^2)

X^{-1}A=B(A^{-1}A)B^2

X^{-1}A=B^3

(XX^{-1})A=XB^3

XB^3=A

X(B^3(B^3)^{-1})=A(B^3)^{-1}

X=A(B^3)^{-1}

d. Not totally sure what the equation is supposed to be, but I guess it's

ABXA^{-1}B^{-1}=A

ABX(BA)^{-1}=A

((AB)^{-1}(AB))X((BA)^{-1}(BA))=(AB)^{-1}A(BA)

X=(AB)^{-1}A(BA)

X=(B^{-1}A^{-1})A(BA)

X=B^{-1}(A^{-1}A)(BA)

X=(B^{-1}B)A

X=A

7 0
3 years ago
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