2 years ago

For brainiest:):):)):):):):):):):)

Mathematics

1 answer:

Effectus [21]2 years ago

6 0

Answer:

1/7

Step-by-step explanation:

There is a 1/7 chance because out of all 7 letters and times you could have chosen a different letter, you chose x which occurs once in the problem.

Hope this helps!

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( please help this is the last question and i have 4 min left, thank you for the help!)

Naddik [55]

Answer:

Step-by-step explanation:

-4x∧2 -1

-4x squared minus one

4 0

2 years ago

Teacher's salaries in Georgia are normally distributed with an average salary of $52,000 with a standard deviation of $12,000. W

suter [353]

Answer:

81.85%

Step-by-step explanation:

We have the following information:

mean = m = 52000

standard deviation = sd = 12000

a = 40000

b = 76000

we need to find the probability between a and b, that is:

P (a <x <b) = P (40,000 <x <76000)

P [(40000 - m) / sd <(x - m) / sd <(76000 - m) / sd]

replacing

P [(40000 - 52000) / 12000 <z <(76000 - 52000) / 12000]

P (-1 <z <2)

P (z <= -1) - P (z <= 2)

We look for this value of z, in the attached table:

0.9772 - 0.1587

P = 0.8185

In other words, the probability is 81.85%

8 0

3 years ago

What is the value <br> 6=a/4+2

Tpy6a [65]

Answer:

a=16

Step-by-step explanation:

16/4+2 = 6

Thus the answer is 16

7 0

3 years ago

18 science club members have birthdays in the summer. This is 20% of the birthdays in the club. How many club members are there?

swat32

18 * 5 = 90
90 represents 100%, because there are 5 20% in 100%

In total there are 90 club members
80% = 71 do not have birthdays in the summer.

8 0

3 years ago

What is the equation of the line that passes through the point (-6,-6)(−6,−6) and has a slope of \frac{2}{3} 3 2 ?

xz_007 [3.2K]

Answer:

the first on is 144 the secnd one is 1

Step-by-step explanation:

i think that's write.

3 0

2 years ago