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ololo11 [35]
3 years ago
13

What is m < 8 if m < 4 = 50° ? A) 50° B) 180° C) 70° D) 40°

Mathematics
1 answer:
icang [17]3 years ago
7 0

Answer:


Step-by-step explanation:


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An airplane is flying at 32,000 feet when it starts its descent. It is descending at a rate of 2,000 feet per minute. Let x repr
velikii [3]

Answer:

equation: y = 32000 - 2000x

0 = 32000

1 = 30000

2 = 28000

3 = 26000

4 = 24000

Step-by-step explanation:

3 0
3 years ago
A grocery store’s receipts show that Sunday customer purchases have a skewed distribution with a mean of 27$ and a standard devi
34kurt

Answer:

(a) The probability that the store’s revenues were at least $9,000 is 0.0233.

(b) The revenue of the store on the worst 1% of such days is $7,631.57.

Step-by-step explanation:

According to the Central Limit Theorem if we have a population with mean μ and standard deviation σ and we take appropriately huge random samples (n ≥ 30) from the population with replacement, then the distribution of the sum of values of X, i.e ∑X, will be approximately normally distributed.  

Then, the mean of the distribution of the sum of values of X is given by,  

 \mu_{X}=n\mu

And the standard deviation of the distribution of the sum of values of X is given by,  

\sigma_{X}=\sqrt{n}\sigma

It is provided that:

\mu=\$27\\\sigma=\$18\\n=310

As the sample size is quite large, i.e. <em>n</em> = 310 > 30, the central limit theorem can be applied to approximate the sampling distribution of the store’s revenues for Sundays by a normal distribution.

(a)

Compute the probability that the store’s revenues were at least $9,000 as follows:

P(S\geq 9000)=P(\frac{S-\mu_{X}}{\sigma_{X}}\geq \frac{9000-(27\times310)}{\sqrt{310}\times 18})\\\\=P(Z\geq 1.99)\\\\=1-P(Z

Thus, the probability that the store’s revenues were at least $9,000 is 0.0233.

(b)

Let <em>s</em> denote the revenue of the store on the worst 1% of such days.

Then, P (S < s) = 0.01.

The corresponding <em>z-</em>value is, -2.33.

Compute the value of <em>s</em> as follows:

z=\frac{s-\mu_{X}}{\sigma_{X}}\\\\-2.33=\frac{s-8370}{316.923}\\\\s=8370-(2.33\times 316.923)\\\\s=7631.56941\\\\s\approx \$7,631.57

Thus, the revenue of the store on the worst 1% of such days is $7,631.57.

5 0
2 years ago
The sum of three numbers is 82 The second number is 3 times the third. The third number is 8 more than the first. What are the n
olganol [36]

Answer:

22 46 15

Step-by-step explanation:

i looked it up because i was even confused. but i think this is right. hope this helps.

5 0
3 years ago
A rectangle has a height of 3p2+1 and a width of p3+4 your answer should be a polynomial in standard form
drek231 [11]

Answer:

3p^5+p^3+12p^2+4

Step-by-step explanation:

5 0
2 years ago
The state of California takes about 8% of your income for income tax. How much of your money do you owe California in taxes each
posledela

Answer:

you can't answer it without knowing how much money they have to multiply it by the 8% to find out what you'll be paying out to California each month

Step-by-step explanation:

you have to know your monthly income to know how much you're paying out in California

6 0
3 years ago
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