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4 years ago

What is the sign of the product?

2 answers:

8 0

$= (0.3)(-9.2)(-8.1)(4.2)(-0.8) \\ = (-2.76)(-8.1)(4.2)(-0.8) \\ = (22.356)(4.2)(-0.8) \\ = (93.8952)(-0.8) \\ = -75.11616$

So, yeah the product is Nagative.

KengaRu [80]4 years ago

7 0

The simplest way is to count the number of NEGATIVE SIGNS in the problem before doing any multiplying If there are an ODD number of NEGATIVE TERMS the answer is NEGATIVE if an EVEN NUMBER the answer is POSITIVE In this problem there are 3 negative terms, so the answer is NEGATIVE after knowing the sign, just multiply the numbers without worrying about the sign, you already know it

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An entrepreneur is considering the purchase of a coin-operated laundry. The current owner claims that over the past 5 years, the

notsponge [240]

Answer:

We conclude that the daily average revenue was actually $675.

Step-by-step explanation:

We are given that the current owner claims that over the past 5 years, the average daily revenue was $675 with a standard deviation of $75.

A sample of 30 days reveals a daily average revenue of $625.

Let $\mu$ = daily average revenue.

So, Null Hypothesis, $H_0$ : $\mu$ = $675 {means that the daily average revenue was $675}

Alternate Hypothesis, $H_A$ : $\mu$ $\neq$ $675 {means that the daily average revenue was different from $675}

The test statistics that would be used here One-sample z test statistics as we know about the population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\bar X$ = sample daily average revenue = $625

$\sigma$ = population standard deviation = $75

n = sample of days = 30

Since, we are given that we have decided not to reject the null hypothesis which leads us to the conclusion that the daily average revenue was actually $675.

3 0

4 years ago

Please help me out!! :c

scoray [572]

Answer:

The answer would be D

Step-by-step explanation:

To find how many Katie has, you would have to double it ( times by 2 ). Then subtract 3, since Alejandro has three less than twice as many as Katie.

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3 years ago

Which expression is equivalent to (cd)^5

motikmotik

Answer:

c^5 *d^5

Step-by-step explanation:

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3 years ago

Which of the following statements is true about the number 30/2

jeka94

Answer:

Step-by-step explanation:

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3 years ago

The first two steps in the derivation of the quadratic formula by completing the square are shown below. Which answer choice sho

Dmitriy789 [7]

You didn’t provide any answer choices but you can use my notes to guide you. Hope this helps! :)

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3 years ago