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3 years ago

Please please help me out

Mathematics

2 answers:

Alborosie3 years ago

4 0

Chur answer would be C

Papessa [141]3 years ago

3 0

Answer:

I think that the answer may be B, I am not 100% sure though

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Two trains are moving towards each other. One train moves at a speed of 50 mph, and the other train travels at 60 mph. How soon

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3 years ago

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Quadrilateral FLAG has coordinates F(1,5), L(6,3), A(3,-1), and G(-2,1). Which

Anettt [7]

Answer:

B. Quadrilateral FLAG is a parallelogram because opposite sides are parallel.

Step-by-step explanation:

Refer to attached.

Plot the point and connect in order FLAG.

We see

FL ║ GA
GF ║ AL
FA and GL are not perpendicular

All the above can be confirmed by calculating the slopes:

m(FL) = (3 - 5)/(6 - 1) = -2/5
m(GA) = (1 + 1)/(-2-3) = -2/5
These are same.

m(GF) = (5 - 1)/(1 + 2) = 4/3
m(AL) = (3 + 1)/(6 - 3) = 4/3
These are same

m(FA) = (-1 - 5)/(3 - 1) = -3
m(GL) = (3 - 1)/(6 +2) = -1/4
These are negative but not reciprocal

The quadrilateral is a parallelogram.

Correct choice is B

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3 years ago

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A recipe includes 6 cups of flour and 2/3 cup of butter. Write the ratio of the amount of flour to the amount of butter as a fra

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18 : 2...reduce
9:1 or 9/1

6 0

3 years ago

Please help!! thank you.

Zina [86]

(A) Product of $-2x^{3}+x-5$ and $x^{3}-3x-4$ is:

$(-2x^{3}+x-5)(x^{3}-3x-4)$

$=-2x^{3}(x^{3}-3x-4)+x(x^{3}-3x-4)-5(x^{3}-3x-4)$

$=(-2x^{3})(x^{3})+(-2x^{3})(-3x)+(-2x^{3})(-4)+x(x^{3})+(x)(-3x)+(x)(-4)+(-5)(x^{3})+(-5)(-3x)+(-5)(-4)$

$=-2x^{6}+6x^{4}+8x^{3}+x^{4}-3x^{2}-4x-5x^{3}+15x+20$

$=-2x^{6}+6x^{4}+x^{4}+ 8x^{3}-5x^{3}-3x^{2}-4x+15x+20$

$=-2x^{6}+7x^{4}+3x^{3}-3x^{2}+11x+20$

(B) Yes.

Product of $-2x^{3}+x-5$ and $x^{3}-3x-4$ = Product of $x^{3}-3x-4$ and $-2x^{3}+x-5$ because multiplication is commutative.

Commutative Property of multiplication says that a.b = b.a.

Thus, multiplication is same irrespective of the order of two numbers.

5 0

3 years ago