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3 years ago

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(b) Employers at a firm are worried about the effect of March Madness, a basketball championship held each spring in the US, on

employee productivity. They estimate that on a regular business day employees spend on average 15 minutes of company time checking personal email, making personal phone calls, etc. They also collect data on how much company time employees spend on such non-business activities during March Madness. They want to determine if these data provide convincing evidence that employee productivity changed during March Madness. In symbols, the hypotheses are:

1 answer:

Brrunno [24]3 years ago

8 0

Answer:

I need a question in order to answer not just a answer choice

Step-by-step explanation:

sorry

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These base-10 blocks model 68.

Rina8888 [55]

Answer:

68 ÷ 7 = 9.714

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2 years ago

Mr. Jenkins is going to buy museum tickets for a class trip. The museum director gives him the following prices:

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3 years ago

A geometric sequence is defined by the equation an = (3)3 − n.

Delvig [45]

PART A

The geometric sequence is defined by the equation

$a_{n}=3^{3-n}$

To find the first three terms, we put n=1,2,3

When n=1,

$a_{1}=3^{3-1}$

$a_{1}=3^{2}$

$a_{1}=9$
When n=2,

$a_{2}=3^{3-2}$
$a_{2}=3^{1}$

$a_{2}=3$

When n=3

$a_{3}=3^{3-3}$

$a_{3}=3^{0}$
$a_{1}=1$
The first three terms are,

$9,3,1$

PART B

The common ratio can be found using any two consecutive terms.

The common ratio is given by,
$r= \frac{a_{2}}{a_{1}}$
$r = \frac{3}{9}$

$r = \frac{1}{3}$

PART C

To find
$a_{11}$

We substitute n=11 into the equation of the geometric sequence.

$a_{11} = {3}^{3 - 11}$

This implies that,

$a_{11} = {3}^{ - 8}$

$a_{11} = \frac{1}{ {3}^{8} }$

$a_{11}=\frac{1}{6561}$

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3 years ago

Draw a model to represent the ratio 1 to 3.Describe how to use the model to find an equivalent ratio.

masya89 [10]

Ratios are basically a number v a number. Like if your in a group of 30 people and 10 of them are boys, your ratio of girls to boys would be 20:10. That's like really really basic ratio and idk how advanced in rations you are but yeah.

5 0

3 years ago

Read 2 more answers

4×-6+x+3 what is the value of this expression when x =8

soldi70 [24.7K]

Answer:

$- 13$

Step-by-step explanation:

$4 \times - 6 + x + 3$

GIVEN THAT,

$x = 8$

LET'S SOLVE NOW

$4 \times - 6 + 8 + 3 \\ - 24 + 8 + 3 \\ - 24 + 11 \\ = - 13$

Hope this helps

brainliest appreciated

good luck! have a nice day!

5 0

3 years ago