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3 years ago

6

Open notes test: Relations, Functions and Slope

1 answer:

Karolina [17]3 years ago

6 0

Answer:

I'm not sure what your asking

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Assume that the number of watches produced every hour is normally distributed with a mean of 500 and a standard deviation of 100

horsena [70]

To evaluate the <span>probability that in a randomly selected hour the number of watches produced is greater than 500 we proceed as follows:
z=(x-</span>μ<span>)/</span>σ
where:
x=500
μ=500
σ=100
thus
z=(500-500)/200=0

Thus:
P(x>500)=1-P(x<500)=1-P(z<0)=1-0.5=0.5

Answer: 0.5~50%

8 0

4 years ago

Read 2 more answers

Divide<br> (-x* + 2x’ +3x– 5x – 2)/(x² – 2x+1)

nata0808 [166]

Answer:

3/4 ÷ 1/2

Step-by-step explanation:

5 0

3 years ago

The perimeter of a rectangle is 24 in. and its length l l is 3 times the width w w . what is the length and width \left(l,w\righ

patriot [66]

Since p=24 and to get p you do 3w+3w+w+w which equals 8w=24 and 24/8 is 3 so your answer is 3

8 0

3 years ago

Marcus has $28 to spend. He spent $3.75 to buy a notebook. He needs to save $11.25 but he wants to buy a snack. Chips cost $1.30

Alborosie

Total money Marcus has = $28

Money spent to buy a notebook = $3.75

Money left now = $28-3.75=24.25$

Money needed to be saved = $11.25

So, the amount of money Marcus can spend = $24.25-11.25=13$

Cost of a packet of chips = $1.30

The inequality to determine the maximum number of chips he can buy is:

Let the number of chips Marcus can buy = x

As he cannot spend more than $13 to buy chips so equation becomes:

$1.30x\leq 13$

Solving this we get

$x\leq 10$

Hence, Marcus can buy a maximum of 10 packs of chips and save $11.25

4 0

3 years ago

The graph shown can be used to solve which of these systems of equations?

mrs_skeptik [129]

Answer: It is B

Step-by-step explanation:

Just took the test

7 0

3 years ago