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3 years ago

20. Write the equation of a cubic function f(x) that has zeros x = –3, x = –1 and x = 2.

Mathematics

2 answers:

tino4ka555 [31]3 years ago

7 0

Answer:

hope it helped brainliest pls

Lelechka [254]3 years ago

3 0

Answer:

x³ + 2x² - 5x - 6

Step-by-step explanation:

If zeros are x = -3, -1, and 2, then the factors are :

= (x + 3)(x + 1)(x - 2)

= (x² + 4x + 3)(x - 2)

= x³ + 4x² + 3x - 2x² - 8x - 6

= x³ + 2x² - 5x - 6

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3 years ago

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Pavlova-9 [17]

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4 years ago

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Alik [6]

Answer:

equaly likely

Step-by-step explanation:

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3 years ago

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Write a linear function that passes through (1,5) and (2,15)

Leokris [45]

Simple,

using $\frac{y1-y2}{x1-x2} =m (slope)$

find your slope...

$\frac{5-15}{1-2} = \frac{-10}{-1}=10$

thus, 10=m (slope)

Now, using y=mx+b to find your equation, plug in what you know...

Use any of the 2 coordinates.. (1,5)

5= 10(1)+b

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4 years ago

A lot of 9 components contains 3 that are defective. Two components are drawn at random and tested. Let be the event that the fi

kirza4 [7]

Answer:

Probabilty of first component drawn defective= 0.1161

Probability of second component drawn defective= 0.1560

Step-by-step explanation:

Total component = 9

Defective component= 3

Non-defective component= 6

Probability of defective= 3/9

= 0.3333

Probabilty of non defective= 1-0.3333

= 0.6666

Probabilty of first component drawn is defective

= 9C1(0.333)¹(0.6666)^8

= 9(0.3333)(0.0387)

= 0.1161

Probabilty of second component is defective

= 8C1(0.3333)¹(0.6666)^7

= 8(0.3333)(0.0585)

= 0.1560

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3 years ago