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oksian1 [2.3K]
3 years ago
14

What is the factorization of the polynomial below? -3x^3+15x^2+42x

Mathematics
1 answer:
kherson [118]3 years ago
7 0
Factoring out x

x(-3x^2+15x+42)  now factor parenthetical expression

x(-3x^2+21x-6x+42)

x(-3x(x-7)-6(x-7))

x(-3x-6)(x-7)  we can factor out -3 from first parentheses

-3x(x+2)(x-7)
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The time until failure of an electronic device has an exponential distribution with mean 15 months. If a random sample of five s
Ainat [17]

Answer:

The probability that the first failure occurs among the five devices is given by

(a) 9 months =\frac{9}{15} or  =0.6

(b) 12 months=\frac{12}{15} or = 0.8

Step-by-step explanation:

probability is given as the; number of required outcome/ total number of possible outcome.

6 0
3 years ago
The table shows value for the function f, while the graph shows function g.
Sauron [17]

Answer:

A

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A is the right answer

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plz mark me Brainliest

3 0
3 years ago
Can I please get help with this one ?
swat32
|528 1/5 - (-89 3/5)|
|528 1/5 + 89 3/5|
|617 4/5|
617 4/5

Hope this helped!
8 0
3 years ago
a sporting goods store has 39 bicycles. if 2/3 of this quantity are sold how many bicycles were sold? please show work
horrorfan [7]

Answer:

26

Step-by-step explanation:

GIRL 2/3's

2/3*39

2/3*39/1= 78/3 ( DIVIDE ) =26

2/3's of 39  =26

7 0
3 years ago
Read 2 more answers
Can somebody help me with this question please
e-lub [12.9K]
3-4^2+6/2
we use PEMDAS
since there’s no parentheses we go to exponents
3-16+6/2
Next would be multiplication but there’s nothing to multiply so we go to division
3-16+3
Then we add
3-19
The last and final step is subtraction
-16
6 0
3 years ago
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