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son4ous [18]
3 years ago
9

Let ​ f(x)=x2−x−30 ​. What are the zeros of the function? Enter your answers in the boxes.

Mathematics
2 answers:
TiliK225 [7]3 years ago
7 0

Answer:

the answer is -5 and 6

Step-by-step explanation:

Blababa [14]3 years ago
5 0

Zeros of the function are -5 and 6.

<u>Step-by-step explanation:</u>

f(x) = x² - x - 30

Step 1:

Factorize the equation using Product and Sum method. Product = - 30 and Sum = - 1

⇒ f(x) = x² - 6x + 5x - 30

Step 2:

Solve the equation by equating the function to zero to find zeros.

⇒ x (x - 6) + 5(x - 6) = 0

⇒ (x - 6)(x + 5) = 0

⇒ x = 6, - 5

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Which expression is equivalent to (3x-1) (-5x+6)?
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Answer:

−15x2+23x−6

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Step-by-step explanation:

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Carl’s square swimming pool has a volume of 1000 cubed feet. What are dimensions of his pool?
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3 years ago
You have a bag full of apples. There are 12 Jonathan (red), 6 Granny Smith (green), and 3 Golden Delicious (yellow) apples in th
tensa zangetsu [6.8K]

Answer:

The total number of apples is 17

Step-by-step explanation:

(a)

Number of green apples = 4

P ( that all three apples are green)

= (limit 4 and 3) / (limit 17 and 3)

= 4! / 3!(4−3)!

= 17! / 3!(17−3)!

= 1 / 170

= 0.005

(b)

Number of red apples = 8

P(that all three apple are green)

=(limit 8 and 3) / (limit 17 and 3)

= 8! / 3!(8−3)!

= 17! / 3!(17−3)!

= 7 / 85

= 0.082

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P(that no three apple is red)= 1−0.082 = 0.918

c)

P(of selecting 4 apple that contain at least 2 red apples)

= (limit 8 and 2) /( limit 17 and 2) X (2/15) + (limit 8 and 3) /(limit 17 / 3) X (1/14)

= (7/34) × (2/15) + (7/85) × (1/14)

= 0.027 + 0.058

= 0.085

d)

P(that the second apple selected is yellow given that the first apple is red)

= (limit 5 and 1) / ( limit 16 and 1)

= 5! / 1!(5−1)!

= 16! / 1!(16−1)!

= 5 /16

= 0.3125

5 0
3 years ago
Read 2 more answers
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