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erik [133]
3 years ago
7

Write the following expression using a single exponent. 3-5 × 36 A. 30 B. 3-11 C. 31 D. 3-30

Mathematics
1 answer:
fiasKO [112]3 years ago
7 0

Answer:

3^1

Step-by-step explanation:

3^-5 * 3^6

When multiplying exponents with the same base, we can add the exponents

3^ ( -5+6)

3^1

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The CEO of a large corporation asks his Human Resource (HR) director to study absenteeism among its executive-level managers at
Fynjy0 [20]

Answer:

Following are the answer to this question:

Step-by-step explanation:

Given:

n = 30 is the sample size.  

The mean  \bar X = 7.3 days.  

The standard deviation = 6.2 days.  

df = n-1  

     = 30-1 \\      =29

The importance level is \alpha = 0.10  

The table value is calculated with a function excel 2010:

= tinv (\ probility, \ freedom \ level) \\= tinv (0.10,29) \\ =1.699127\\ =  t_{al(2x-1)}= 1.699127

The method for calculating the trust interval of 90 percent for the true population means is:

Formula:

\bar X - t_{al 2,x-1} \frac{S}{\sqrt{n}} \leq \mu \leq \bar X+ t_{al 2,x-1}   \frac{S}{\sqrt{n}}

=\bar X - t_{0.5, 29} \frac{6.2}{\sqrt{30}} \leq \mu \leq \bar X+ t_{0.5, 29}   \frac{6.2}{\sqrt{30}}\\\\=7.3 -1.699127 \frac{6.2}{\sqrt{30}}\leq \mu \leq7.3 +1.699127 \frac{6.2}{\sqrt{30}}\\\\=7.3 -1.699127 (1.13196)\leq \mu \leq7.3 +1.699127  (1.13196) \\\\=5.37 \leq \mu  \leq 9.22 \\

It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.

7 0
3 years ago
Mrs Katie constructs a cube with 512 magnetic block students and her two classes will each make an identical cube. There are 28
devlian [24]
I take it each student is going to make a block. 
She has 25 + 28 students all together which is 53 students total
Each one requires 512 magnetic blocks

Therefore she needs 53 * 512 = 27136 blocks. 

6 0
3 years ago
Mary wants to make brownies to make brownies she needs 7/12 of a cup of flour per batch of brownies if Mary has 7 cups of flour
Nostrana [21]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>12</em>

<em />

▹ Step-by-Step Explanation

7/\frac{7}{12} \\\\= 7 * \frac{12}{7} \\\\= \frac{84}{7} \\\\= 12

Hope this helps!

CloutAnswers ❁

Brainliest is greatly appreciated!

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6 0
3 years ago
(x-1)³ find derivative using definition​
kakasveta [241]

Step-by-step explanation:

definition of the derivative to differentiate functions. This tutorial is well understood if used with the difference quotient .

The derivative f ' of function f is defined ascthe above pic.

when this limit exists. Hence, to find the derivative from its definition, we need to find the limit of the difference quotient.

3 0
3 years ago
Read 2 more answers
Suppose hamburger buns cost $1.79 per package. how much would it cost to buy 6 packages?
Inessa [10]

Answer:

$10.74 or C.

Step-by-step explanation:

First multiply the total cost of a single package of buns by the number you want, in this case 6.

1.79 x 6 = 10.74


6 0
4 years ago
Read 2 more answers
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