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Scorpion4ik [409]
3 years ago
15

-3*6 Multiplying and dividing integers

Mathematics
1 answer:
Vilka [71]3 years ago
7 0

All we need to do is multiply.

-3 * 6 = -18

Anytime you multiply a negative number to a positive number, its always going to be negative.

Best of Luck!

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I need help please it’s ASAP
malfutka [58]

The interquartile range of the data is equal to 2.18.

<h3>What is an interquartile range?</h3>

The interquartile range is a measure of where a data set's "middle fifty" is located. Whereas a range is a measure of where the start and end of a set are, an interquartile range is a measure of where the majority of the values are.

Given data is { 1.56,1.77,2.22,2.35,2.45,2.77,3.26,4.35,5.23,6.02}.

The upper limit is, and the median is 2.22.

{ 1.56,1.77,<u>2.22</u>,2.35,2.45,2.77}

The lower limit is, and the median is 4.35.

{2.77,3.26,<u>4.35</u>,5.23,6.02}

The interquartile range will be calculated as,

IQR = 4.35 - 2.22

IQR = 2.18

To know more about interquartile range follow

brainly.com/question/21270410

#SPJ1

5 0
1 year ago
How many hours will it take a culture of bacteria to increase from 20 to 2000 if the growth rate per hour is 85%
Eddi Din [679]
So you are seeing how much time it'll take so you solve for "t", the time. 
<span>So you take the formula A=Pe^(rt) </span>
<span>A=2000 because it's the end value </span>
<span>P=20 because it's the starting value </span>
<span>r=.85 since 85%=.85 and .85 is the rate </span>
<span>Plug the values in and you get 2000=20e^(.85t) </span>
<span>What you do is you divide by 20 so you get 100=e^(.85t) </span>
<span>Take the natural logarithm of both sides 'cause of e and a natural log is written as ln so you get </span>
<span>ln 100=.85t ln e and because you can use the power rule you end up with .85t ln e and </span>
<span>ln e=1 so you have ln 100 = .85t so you divide by .85 so (ln 100)/.85=t and t=5.4178472776331 </span>
<span>hours </span>
<span>3. Exponential decay: </span>
<span>A= Pe^(rt) </span>
<span>where </span>
<span>A is the final amount </span>
<span>P is the initial value </span>
<span>r is rate of decay </span>
<span>t is time (years) </span>
<span>Let's say x is the initial amount then (1/2)x=xe^(32r) </span>
<span>I used x because the value isn't given but anyway division by x would give you 1/2=e^(32r) </span>
<span>Take the ln of both sides so ln 1/2=32r ln e and then ln e=1 so ln 1/2=32r. </span>
<span>Divide both sides by 32 and you'd get (ln 1/2)/32=r and r= -0.021660849392498 </span>
<span>4. Another depreciation question. </span>
<span>Each year the item retains 88% of its last-year value. </span>
<span>Solve: 250,000(0.88)^x = 100,000 </span>
<span>0.88^x = 0.4 </span>
<span>x = [log0.4]/[log0.88] </span>
<span>x = 7.168 years </span>
8 0
3 years ago
linda saved 2 ten-dollar bills, 4 five- dollar bills, and 15 one-dollar bills, Harry saved 16 more than linda how much does harr
telo118 [61]
Harry has 71 becasue its 20 + 20 + 15 + 16
7 0
3 years ago
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Vanyuwa [196]
Your correct answer would be: B=-2x-8y=8

3 0
4 years ago
Shay needs to make a model of an Egyptian pyramid (with a square base)
Mandarinka [93]
Shay would use the net shown in (b).
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