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REY [17]
3 years ago
7

Rewrite f(x) = –(x + 3)2 − 1 from vertex form to standard form.

Mathematics
2 answers:
Verizon [17]3 years ago
3 0
f(x)=-(x+3)^{2}-1=-x^{2}-6x-9-1=-x^{2}-6x-10
Gelneren [198K]3 years ago
3 0

The Answer is -x - 6x - 10. Thanks!


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Write 2.71 repeating as a simplified fraction.<br><br> 271/100 is wrong
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Answer:

269/99

Step-by-step explanation:

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3 years ago
188 to 42 what is the percent change
Mekhanik [1.2K]

Answer:

Step-by-step explanation:

so we are gonna have a percent decrease because it went from 188 to 42

decrease = (original number - new number) / (original number ) * 100

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Suppose the time required for an auto shop to do a tune-up is normally distributed, with a mean of 102 minutes and a standard de
hammer [34]

Answer:

Step-by-step explanation:

Suppose the time required for an auto shop to do a tune-up is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - u)/s

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x = points scored by students

u = mean time

s = standard deviation

From the information given,

u = 102 minutes

s = 18 minutes

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For x = 120

z = (120 - 102)/18 = 1

Looking at the normal distribution table, the probability corresponding to the z score is 0.8413

P(x > 120) = 1 - 0.8413 = 0.1587

2) We want to find the probability that a tune-up will take lesser than 66 minutes. It is expressed as

P(x < 66 minutes)

For x = 66

z = (66 - 102)/18 = - 2

Looking at the normal distribution table, the probability corresponding to the z score is 0.02275

P(x < 66 minutes) = 0.02275

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