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strojnjashka [21]
3 years ago
5

Write this trinomial in factored form? 3x^2-x-10

Mathematics
1 answer:
weeeeeb [17]3 years ago
5 0

Answer:

(3x  +5   ) (x-2     )

Step-by-step explanation:

3x^2-x-10

(3x     ) (x     )

We know that -10 = -2*5

3*-2 = - 6 +5 = -1

(3x  +5   ) (x-2     )

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Show me how to do this please for geometry!!
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Answer:

see explanation

Step-by-step explanation:

Since the triangles are right use trigonometric ratios to find x and y

A

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Multiply both sides by x

x × sin33° = 2.5 ( divide both sides by sin33° )

x = \frac{2.5}{sin33} ≈ 4.590

tan33° = \frac{opposite}{adjacent} = \frac{2.5}{y}

Multiply both sides by y

y × tan33° = 2.5 ( divide both sides by tan33° )

y = \frac{2.5}{tan33} ≈ 3.850

B

cos72° = \frac{adjacent}{hypotenuse} = \frac{6}{x}

Multiply both sides by x

x × cos72° = 6 ( divide both sides by cos72° )

x = \frac{6}{cos72} ≈ 19.416

tan72° = \frac{y}{6}

Multiply both sides by 6

6 × tan72° = y, thus

y ≈ 18.466

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