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alexandr1967 [171]
4 years ago
9

Which equation can be used to represent the statement?

Mathematics
1 answer:
Arte-miy333 [17]4 years ago
3 0

You need to specify the statement needed to use the equation. Thank you. I will then answer it if needed.

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A company is interested in estimating the mean number of days of sick leave taken by its employees. The firm's statistician rand
gtnhenbr [62]

Answer:

E) 166

Step-by-step explanation:

Standard deviation is 10

Margin error for the problem is 2

Probability 99%, that means thet the siginficance level α is 1 – p

α = 1 – 0.99 = 0.01

margin of error (ME) can be defined as follows

ME = Z(α/2) * standard deviation/ √n

Where n is the sample size

Z(0.01/2) = Z(0.005)

Using a z table Z = 2.576

Now, replacing in the equation and find n

2 = 2.576 * 10/ √n

2 = 25.76 /√n

√n = 25.76 /2

√n = 12.88

n = 12.88^2

n = 165.89 ≈166

7 0
3 years ago
. If m angle TUV = (9x + 1)° , m angle TUW = (7x – 9)°, and m angle WUV = (5x - 11)°, find the value of x.​
Fed [463]
Answer:

x = 7

Step-by-step explanation:

Suppose ray UW divides ∠TUV into two angles ∠ TUW and ∠ WUV.

Then, m∠TUV = m∠ TUW + m ∠ WUV

Given m∠TUV = (9x + 1), m∠ TUW = (7x - 9) and m ∠ WUV = (5x - 11)

Substitute these values in (i) we get

9x + 1 = 7x - 9 + 5x - 11
9x + 1 = 7x + 5x - 9 - 11
9x + 1 = 12x - 20
12x - 9x = 1 + 20
3x = 21
x = 21/3
x = 7

4 0
4 years ago
Calculate: <br><br> 462 grams(g)=____milligrams (mg)
egoroff_w [7]

Answer:

462 000mg

Step-by-step explanation:

1gram = 1000milligrams

Hence...462 grams...,

; 462 × 1000 = 462 000mg

3 0
3 years ago
Simultaneous equation.
GrogVix [38]

Answer:

3.You collect

4.Multiply the bottom by 4 and then add

5.Multiply the bottom by -2 and then add

6.Multiply the bottom by 2.Multiply the top by 3 and then add

7.Multiply the top by -3.Multiply the bottom by 2and then add

Step-by-step explanation:

3 0
4 years ago
HELP!! CAN I PLEASE GET HELP I JUST NEED WHAT X IS ‍♀️?
nataly862011 [7]

Answer:

x = 2

Step-by-step explanation:

63x - 1 and 62x + 1 are corresponding angles and congruent, thus

63x - 1 = 62x + 1 ( subtract 62x from both sides )

x - 1 = 1 ( add 1 to both sides )

x = 2

7 0
3 years ago
Read 2 more answers
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