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antoniya [11.8K]
3 years ago
6

Find X please put how you got it

Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0
I think that’s right

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Please help I'm struggling really bad :(
faltersainse [42]

Answer of Part A is 243 Lunches

Answer of Part B is 850.50$

3 0
3 years ago
Read 2 more answers
A family goes grocery shopping every week. in a month the costs of the groceries are $72.42, $91.50, $58.99, and $69.02. 5. what
frozen [14]
1) Mean
The mean is given by the sum of the data divided by the number of data (4, in this case):
\mu =   \frac{1}{N} \sum x_i = \frac{1}{4}(72.42+91.50+58.99+69.02) = \frac{291.93}{4}=72.98 $

2) Standard deviation
The standard deviation is given by:
\sigma =  \sqrt{ \frac{1}{N} \sum (x_i-\mu)^2 }
where \mu is the mean, that we already found at point 1), and N=4. Substituting data, we have:
\sigma =  \sqrt{ \frac{1}{4} ((-0.56)^2+(18.52)^2+(-13.99)^2+(-3.96)^2) } =
= \sqrt{ \frac{1}{4}  (554.71)} = \sqrt{138.68} =11.78 $
3 0
3 years ago
Assume that you have a large sample of radioactive atoms, arranged in a rectangular lattice. Imagine that this lattice has some
babunello [35]

Answer:

I dont care

Step-by-step explanation:

7 0
3 years ago
Answers because I need help
kramer

Answer:

f(x)

Step-by-step explanation:

the function f(x) crosses the y-axis higher than either of the other functions, therefore it has the largest y-intercept

6 0
3 years ago
Read 2 more answers
Help Asap pleaseeeee
True [87]

Answer:

$540

Step-by-step explanation:

2460 = 4x + k

1920 = 3x + k

k is our student service fee, which we represent as a constant

subtracting the equations to remove k and isolate x, our cost per course

540 = x

3 0
3 years ago
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