Answer:
7+1x=8, 8+10 =x18 is your answer
475 = 9 c + 25
475 = 9 c - 25
475 = 25 c - 9
475 = 25 c + 9
Answer:
D or A
Step-by-step explanation:
if this helps may i have brain pls
Answer:
800 + 2400 = 3200
Step-by-step explanation:
Because 12 m = 1200 cm
A = L(2) + W(2)
A = 1200 (2) + 400 (2)
A = 2400 + 800
A = 3200
Answer:
And we can use the complement rule and we got:
Step-by-step explanation:
Previous concepts
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".
Solution to the problem
Let X the random variable that represent the bank account balances of a population, and for this case we know the distribution for X is given by:
Where and
Since the distribution of X is normal then the distribution for the sample mean is given by:
And we can use the z score formula given by:
And using this formula we got:
And we can use the complement rule and we got:
Answer: the probability is 0.49
Step-by-step explanation:
Since the account balances at the large bank are normally distributed.
we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = account balances.
µ = mean account balance.
σ = standard deviation
From the information given,
µ = $1,637.52
σ = $623.16
We want to find the probability that a simple random sample of 400 accounts has a mean that exceeds $1,650. It is expressed as
P(x > 1650) = 1 - P(x ≤ 1650)
For x = 1650,
z = (1650 - 1637.52)/623.16 = 0.02
Looking at the normal distribution table, the probability corresponding to the z score is 0.51
P(x > 1650) = 1 - 0.51 = 0.49
$648 is the total amount the customer will pay for the 1-year plan
percentage, a relative value indicating hundredth parts of any quantity.
Given that a customer enrolled in a 1-year product purchase plan that costs $60 per month.
After 6 months, the customer received a monthly discount of 20%.
We need to find the total amount the customer will pay for the 1-year plan.
Product Plan = $60 per month
Money he pay for 1 month = $ 60
Money He pay for first 6 month = 6 × 60 = $ 360
after 6 month he receives 20% discount monthly,
So, Now he pay for 1 month = 60 - 20% × 60
=60-20/100×60
=60-12=48
Money he pay for last 6 month = 6 × 48 = 288
Total Money he pay in a year = 360 + 288 = $ 648
Hence, $648 is the total amount the customer will pay for the 1-year plan
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Answer:
$432
Step-by-step explanation:
60*6=360
They paid $360 for the first 6 months.
20%*60=.2*60
0.2*60=12
12*6=72
They paid $72 for the last 6 months.
360+72=432
They paid $432
Answer:
You will wrapping paper to cover the box.
Step-by-step explanation:
To find how much wrapping paper you will need to cover the box, you will have to find the surface area.
The surface area is the amount of area around the outside of an object.
The outside surface area of a box is given by
where h is the height, W is the width, and L is the length of the box.
From the information given we know that the height is 5 inches, the width is 9 inches, and the length is 12 inches.
Applying the above formula we get that
You will wrapping paper to cover the box.
Answer:
Step-by-step explanation: