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aalyn [17]
3 years ago
6

I need help please?!!!

Mathematics
1 answer:
Anastaziya [24]3 years ago
7 0

Answer:

less than

Step-by-step explanation:

think of it as an aliigator who wants cookies. The alligator is. going to eat the side with more cookies. if he is not facing one side that means that it is lees than

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What is the value of x?
allsm [11]
First need to find the length of line LJ

Line LJ = 8sqrt2 * sin(30) = 5.6569

 now use that to find x

x = 5.6569 * sin(45) = 4

6 0
3 years ago
The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean 2885 and standard deviation
aliina [53]

Answer:

a.  X~N(2,885, 651)

b.  0.086291

c.  0.00058

d.  3213.10 calories

Step-by-step explanation:

a. -A normal distribution is expressed in the form X~N(mean, standard deviation).

-Let X a random variable denoting  the number of calories consumed.

-X is a is a normally distributed random variable with mean 2885 and standard deviation 651.

-This distribution is expressed as X~N(2,885, 651)

b. The probability that less than 2000 calories are consumed is calculated using the formula:

P(X

#substitute the given values in the formula to solve for P:

P(X

Hence, the probability of consuming less than 2000 calories is 0.08691

c. The proportion of customers consuming more than 5000 calories is calculated as:

P(X>x)=P(z>\frac{\bar X-\mu}{\sigma})\\\\=P(Z>\frac{5000-2885}{651})\\\\=P(z>3.2488)\\\\=1-0.99942\\\\=0.00058

Hence, the proportion of customers consuming over  5000 calories is 0.00058

d. The least amount of calories to get the award is calculated as:

1% is equivalent to a z value of 0.50399.

-We equate this to the formula to solve for the mean consumption:

0.01=P(z>\frac{\bar X-\mu}{\sigma})\\\\=P(z>\frac{\bar X-2885}{651})\\\\\1\%=0.50399 \\\\\frac{\bar X-2885}{651}=0.50399 \\\\\bar X=0.50399\times 651+2885\\\\=3213.09

Hence, the least amount of calories consumed to qualify for the award is 3213.10 calories.

8 0
3 years ago
Kira has breakfast in a restaurant. She leaves $1.80 for a 20% tip. What is the price of Kira's breakfast, before the tip?
ki77a [65]

Answer:

percent* base = amount

.2 * x = 1.80

x = 1.80/.2

x= $9

Step-by-step explanation:

5 0
2 years ago
Please help me, just need the answer and thank you!
Triss [41]
Answer to what? I’m confused lol
6 0
3 years ago
Read 2 more answers
How many 3/4-cup servings can you get from 7 1/2 of coffee?
svp [43]
Answer : You can get 10
7 0
3 years ago
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