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2 years ago

A polynomial function has roots of -5,2 and 7

Mathematics

1 answer:

sveta [45]2 years ago

3 0

Answer:

P(x) =x³-4x²-31x+70

Step-by-step explanation:

The function is expressed as:

P(x) = (x+5)(x-2)(x-7)

P(x) =(x²-2x+5x-10)(x-7)

P(x) = (x²+3x-10)(x-7)

P(x) = x³-7x²+3x²-21x-10x+70

P(x) =x³-4x²-31x+70

Hence the polynomial is P(x) =x³-4x²-31x+70

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Monica [59]

Remember you can do anything to an equation as long as you do it to both sides

(y/4)-49=-9
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3 years ago

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Answer:

Step-by-step explanation:

$\cos(30^o)=\dfrac{\sqrt3}2$

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Step-by-step explanation:

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3 years ago

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Anika [276]

Answer:

Step-by-step explanation:

Given

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3 years ago

In triangle ABC, angle A is 75o and angle B is 20o. Select the triangle that is similar to triangle ABC.

Arturiano [62]

Answer:

A. $\triangle$ DEF where $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .

Step-by-step explanation:

At first we must keep in mind that two triangles are similar when they have same angle configuration, that is, each pair of angles is congruent. If $\triangle$ ABC and $\triangle$ DEF, then $\angle A \equiv \angle D$ and $\angle B \equiv \angle E$ . Hence, $\angle D = 75^{\circ}$ and $\angle E = 20^{\circ}$ .

In a nutshell, correct answer is A.

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