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gregori [183]
3 years ago
6

2. Evaluate x(-y + z) for x = -1, y = 2, and z = 5. A 7 B 3 C-7 D-3

Mathematics
1 answer:
Andreas93 [3]3 years ago
5 0
-3; -1(-2+5) you do the parentheses first so it’s 3 then multiply -1 which equals -3
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Answer:

0.156

Step-by-step explanation:

Using binomial probability formula, we have :

P( a out of n ) =ⁿCₐ x pᵃ x qⁿ⁻ᵃ  ------------------------------------------------- (1)

Where n = total number of sample

           a = number of success

            p = probability of success

            q = probability of failure

            n-a = number of failures

From the question:

n =10 , a = 7, p=0.54, q = 1-p = 0.46

Substituting into equation (1) we have:

P (7 out of 10) =  ¹⁰C₇ x (0.54)⁷x (0.46)¹⁰⁻⁷

                      = 0.1563

                     ≈ 0.156

                   

8 0
3 years ago
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$725.78

First timer. Do I need to write detailed solution?
7 0
3 years ago
an employee adds 160 fluid ounces of chemical to a feature that holds 120,000 gallons of water. did the employee add yhe correct
Hitman42 [59]
We are given a volume of 160 fluid ounces of chemical which is added to a container that holds 120,000 gallons of water. Assuming that the chemical has the same density as water, we just need to convert 120,000 gallons to ounces.

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5 0
3 years ago
ALEGBRA 1 ! help. me. please. this. is. so. hard. i dont. understand it.
ANEK [815]

Answer:

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Step-by-step explanation:

I'm not too sure about the other questions. Sorry

8 0
3 years ago
3. Jolene gets paid 17 cents a tree for tree planting up north. In one week she planted 2437 trees. What i
mafiozo [28]

Answer:

Wage of Jolene is 414.29 dollars per week

Step-by-step explanation:

Amount received by Jolene for planting a tree is 17 cents

Given

Total amount of trees planted in a week =   2437

Wage of Jolene is equal to product of number of trees planted and amount paid for planting one tree

Wage of Jolene

= 2437  * 0.17\\= 414.29Dollars

4 0
2 years ago
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