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IceJOKER [234]
3 years ago
6

Does anyone know where I can find answer keys for CPM Core Connections Course 3 (the eighth grade one) answers? Specifically for

Chapter 8? TYSM IF YOU CAN HELP ME
Mathematics
2 answers:
jasenka [17]3 years ago
7 0

Answer:

Yes of course! Now hurry and copy this link cause they will probably take this question down for putting it in. I hope that this helps!

Step-by-step explanation:

https://fliphtml5.com/itej/wqzy/basic/51-100

irina1246 [14]3 years ago
5 0

Answer:

copy and paste this

homework.cpm.org/category/CC/textbook/cc3

Step-by-step explanation:

hope this helps, it also has chapter 8.

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9 ft./s into miles per hour
nexus9112 [7]
First multiply 9 by 60 to find feet/minute: 9x60=540. Multiply that answer by 60 to get feet/hour: 540x60=32400. Divide that by 5,280 to get miles/hour: 32400/5280=6.14 roughly :)
4 0
3 years ago
Is 1 and 2 proportional relationships and why or why now ? PleAse answer for brainlest answer !
Ymorist [56]
1 and 2 cannot be proportional because proportional relationship should has a constant relationship
7 0
3 years ago
Rylee shopped at a clothing store, where she spent $36.50 plus 8% tax. Then, she spent $25 to refuel her car at the gas station.
inn [45]

Answer: The net change to her banking account balance is $83.22.

Step-by-step explanation:

Hi to answer this question we have to analyze the information given:

She spent $36.50 plus 8% tax.  ( to calculate the tax amount we have to multiply the cost by the percentage in decimal form)

36.50 x (8/100) =$2.92 (value of tax)

Adding to the original cost

36.50+2.92 = $39.42

Then, she spent $25 to refuel her car at the gas station.

39.42 +25 = $64.42

She bought groceries worth $23.50. At the grocery checkout, she handed over a coupon for a 20% discount on her purchase

23.50 x (20/100) = 4.7 (amount of discount)

Subtracting to the purchase

23.50 -4.7= $18.8

Finally, adding to the total cost.

64.42 +18.8 = $83.22

4 0
3 years ago
In a study to establish the absolute threshold of hearing, 80 male college freshmen were each seated in a soundproof room and a
Norma-Jean [14]

Answer:

Step-by-step explanation:

Hello!

To study the threshold of hering the researcher took a random sample of 80 male college freshmen.

The students underwent an audiometry test where a tome was played and they had to press a button when they detected it.  The researcher recorded the lowest stimulus level at which the tone was detected obtaining a sample mean of X[bar]= 22.2 dB and a standard deviation of S= 2.1 dB

To estimate the population mean, since we don't have information about the variable distribution but the sample size is greater than 30, you can use the approximation of the standard normal distribution:

X[bar] ± Z_{1-\alpha /2} * \frac{S}{\sqrt{n} }

Where the semiamplitude or margin of error of the interval is:

d= Z_{1-\alpha /2} * \frac{S}{\sqrt{n} }

Using a 95% level Z_{0.975}= 1.965

d= 1.965 * \frac{2.1}{\sqrt{80} }

d= 0.46

The point estimate of the population mean of the threshold of hearing for male college freshmen is X[bar]= 22.2 db

And the estimation using a 95%CI is [21.74;22.66]

I hope this helps!

8 0
3 years ago
If f(x)=-3x-7 and g(x)=x^2
ahrayia [7]

Answi do not understand your question

Step-by-step explanation:

8 0
3 years ago
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