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lbvjy [14]
4 years ago
10

Please help me with this

Mathematics
1 answer:
drek231 [11]4 years ago
3 0

Answer:

21060

Step-by-step explanation:

Breaking down the summation into its component parts. noting

∑ 1 = n

∑n  = \frac{1}{2} n (n + 1), thus

∑(3n - 6) for n = 1 to n = 120

= 3∑n - 6∑1

= 3 × \frac{1}{2} × 120 × 121 - 6 × 120

= 21780 - 720

= 21060

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Oh you just gotta like multipley and then subtracted it
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3 years ago
Victoria has 2.50 pounds of bell peppers and the cost is $1.25. What is the price for 1 pound of bell peppers?
AleksAgata [21]

Answer:

The price of one pound of bell peppers is $0.6.

Step-by-step explanation:

This problem is equivalent to the following:

<em>"if 10 oranges cost $20, how much does 1 orange cost? "</em>

and the answer to that question is:

price of 1 orange  = $20/ 10 oranges = $2 per orange.

Put simply, we divided the total price by the total number of items, and we shall do the same thing for the case of bell peppers:

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8 0
4 years ago
In contract negotiations between a local government agency and its workers,
Liono4ka [1.6K]

Answer:

a. 0.4

b. Not independent.

Step-by-step explanation:

a. We use the probability table attached below for our calculations.

-the probability that an agreement is reached on both sides is obtained from the table:

P(Agreement)=\frac{400}{1000}\\\\\\=0.4

b. To determine whether the two events are independent, we compare the probabilities P(s)\times P(i) and P(s \ and \ i) where i denotes insurance and s denotes salaries:

P(s)\times P(i)=0.5\times 0.7\\\\=0.35\\\\\\P(s \ and \ i)=0.4

Two events are considered to be independent, if and only if:

P(A).P(B)=P(A\ and \ B)\\\\=>P(s).P(i)\neq P(s\ and\  i)

Hence, the events are not independent.

8 0
3 years ago
I need help pls and ty
iragen [17]

Answer: 3rd option

Step-by-step explanation: square root of 13 is 3.60 so it lines up perfectly on the number line

5 0
3 years ago
Cereal is packaged in boxes weighing 24.3 ounces. What is the weight of a
Katena32 [7]

Answer:

1166.4

Step-by-step explanation:

Assuming this is the whole question, you multiply the weight of a single box by the amount in a case to find the weight of a case, hence 24.3*48 =1166.4

3 0
3 years ago
Read 2 more answers
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