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arlik [135]
3 years ago
5

Can someone help me finish my homeworkI'm running out of time

Mathematics
1 answer:
Triss [41]3 years ago
3 0
It factors into (x+4)(x+3)
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-x + 3 = 2 ( x + 15 )
Tom [10]

Answer:

x= -9

Step-by-step explanation:

-x+3=2(x+15)

-x+3=2x+30

-x-2x+3=30-3

-3x=30-3

-3x=27

x= -9

3 0
3 years ago
An accelerated life test on a large number of type-D alkaline batteries revealed that the mean life for a particular use before
joja [24]

Answer:

option (d) 16.6 and 21.4

Step-by-step explanation:

Data provided in the question:

The mean life for a particular use before they failed = 19.0 hours

The distribution of the lives approximated a normal distribution

The standard deviation of the distribution = 1.2 hours

To find:

The values between which 95.44 percent of the batteries failed

Now,

In Normal distribution, the approximately 95% ( ≈ 95.44% of all values ) falls within 2 standard deviations of the mean

Therefore,

Upper limit = Mean + 2 × standard deviation

⇒ Upper limit = 19.0 + 2 × 1.2 = 21.4

Lower  limit = Mean - 2 × standard deviation

⇒ Lower  limit = 19 - 2 × 1.2 = 16.6

Hence,

the answer is option (d) 16.6 and 21.4

8 0
2 years ago
5.) it costs $12 to attend a golf clinic with a local pro
Volgvan

Answer:

You can buy 6 buckets

Step-by-step explanation:

30=-12+3x

-12.  -12

18=3x

divide by 3

you can buy 6 buckets

6 0
2 years ago
Read 2 more answers
Frank says that for any whole number n, the value of 6n-1 is always prime. Is Frank correct? Explain your answer.​
Lady bird [3.3K]

Answer:

Frank is wrong

Step-by-step explanation:

6(6) - 1 = 35

35 is a multiply by 5 so it is not a prime number.

8 0
3 years ago
Please help me out !
Ahat [919]

Answer:

a) -9/-10 (4th)

b) -3/5 (4th)

3 0
2 years ago
Read 2 more answers
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