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3 years ago

11

Question 2 please fas

1 answer:

Len [333]3 years ago

5 0

Answer:

a = 3, b = 2

Step-by-step explanation:

It is given that both the polynomials are equal.

Therefore, h(x) = k(x)

${x}^{3} + (a + b) {x}^{2} - 4x + 2 \\ = {x}^{3} + 5 {x}^{2} - (2a - b)x + 2 \\ \\ equating \: like \: terms \: on \: both \: sides \\ (a + b) {x}^{2} = 5 {x}^{2} \\ \implies \: a + b = 5.....(1) \\ \\ - (2a - b)x = - 4x \\ 2a - b = 4....(2) \\ \\ adding \: equations \: (1) \: and \: (2) \\ \\ 3a = 9 \\ \implies \: a = \frac{9}{3} \\ \huge \red{ \boxed{\implies \: a = 3}} \\ \\ substituting \: a = 3 \: in \: equation \: (1) \\ 3 + b = 5 \\ \implies \: b = 5 - 3 \\ \huge \purple{ \boxed{ \implies b = 2}}$

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mojhsa [17]

Answer:

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Step-by-step explanation:

<u>Equations</u>

To solve the problem, we need to recall the area of a trapezium is:

$\displaystyle A=\frac{b1+b2}{2}.h$

Where b1 and b2 are the lengths of the parallel sides and h is the height of the trapezium.

The field to be bought by Mohan has a trapezium shape with a side along the road of side x and a side along the river of side 2x, as stated in the problem.

Knowing the height is h=100 m, and the area is 10500 m2:

$\displaystyle \frac{x+2x}{2}\cdot 100=10500$

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2 years ago

rectangle has an area of 24 square units and a side length of 2 3/4 units. Find the other side length of the rectangle. Show you

slavikrds [6]

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Step-by-step explanation:

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3 years ago

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Factorise 2x²-9x+10 (this must be put in two brackets)

galben [10]

Find both roots :
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3 years ago

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BlackZzzverrR [31]

Answer:

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2 years ago

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NikAS [45]

Answer:

the correct options are:

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Step-by-step explanation:

Given that a line passes through two points

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First of all, let us the find the equation of the line which is parallel to AB and passes through point P.

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