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2 years ago

What is the median of the data in this stem-and-leaf plot?

Mathematics

2 answers:

Gnom [1K]2 years ago

5 0

Answer:

Part A) Median = 44

Part B) Median = 36

Step-by-step explanation:

Median of a data set is the middle data point.

Part A) Median of the data in this stem-and-leaf plot.

The total data set represented by Stem and leaf in order from least to greatest are as following:

37 , 38 , 38 , 40 , 43 , 45 , 47 , 47 , 51 , 52

The middle data is 43 , 45

So, median = (43 + 45)/2 = 88/2 = 44

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Part B) Median of the data in A number line.

The total data set represented by the number line in order from least to greatest are as following:

31, 34 , 34 , 35 , 37 , 38 , 38 , 39

The middle data is 35 , 37

So, median = (35 + 37)/2 = 72/2 = 36

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zmey [24]2 years ago

5 0

Answer:

C) 44

Step-by-step explanation:

I took the test and it was right.

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If x=0,5 the solve 10x

OverLord2011 [107]

Answer:

f=110132.328974hti

Step-by-step explanation:

3 0

3 years ago

A population of bacteria is initially 6000. After three hours the population is 3000. If this rate of decay continues, find the

serious [3.7K]

Answer:

The equation is $A=6000e^{-0.23t}$ at a rate of -23%.

Step-by-step explanation:

Decay can be represented by the equation $A=A_0e^{rt}$ . We can find the rate at which it decays by using t=3 hours and A=3000. This means $A_0=6000$ in this context.

$A=A_0e^{rt}\\3000=6000e^{r(3)}$

$0.5=e^{(24.5)r}$

After substituting, we divided by 6000 to each side to get 0.5 on the left. Now to solve for r, we will take the natural log of both sides and use log rules to isolate r.

$ln 0.5=ln e^{(3)r}\\ln 0.5=3r (ln e)\\\frac{ln0.5}{3} =r$

We know $lne=1$ so we were able to cancel it out and divide both sides by 3.

We solve with a calculator $\frac{ln0.5}{3} =r\\-0.23=r$

We change -0.23 into a percent by multiplying by 100 to get -23% as the rate.

The equation is $A=6000e^{-0.23t}$

5 0

3 years ago

The length of a rectangle is 8 inches more than three times the width. the perimeter is 88 inches. find the length and width.

Sav [38]

We can say L as length and W as the width

L= 3w + 8

The formula for perimeter is 2L + 2W = P. We can substitute L in as "3w+8" to make the equation...

2(3w+8)+2w=88 Now, we can simplify by distributing the 2 to each term
6w+16+2w=88
8w+16=88 Then subtract 16 from each side..
8w=72
w=9

So the width is 9, so we can substitue that into the previous equation, L = 3w+8.

L=3(9)+8
L=27+8
L=35, W=9

5 0

2 years ago

|x2+x-20<br> 22-11x+28<br> e:<br> x2-x-30<br> 3x-18

elena-s [515]

Answer:

x2 - 10x - 1994

Step-by-step explanation:

Step 1 :

Trying to factor by splitting the middle term

1.1 Factoring x2-10x-1994

The first term is, x2 its coefficient is 1 .

The middle term is, -10x its coefficient is -10 .

The last term, "the constant", is -1994

Step-1 : Multiply the coefficient of the first term by the constant 1 • -1994 = -1994

Step-2 : Find two factors of -1994 whose sum equals the coefficient of the middle term, which is -10 .

-1994 + 1 = -1993

-997 + 2 = -995

-2 + 997 = 995

-1 + 1994 = 1993

Observation : No two such factors can be found !!

Conclusion : Trinomial can not be factored

Final result :

x2 - 10x - 1994

Processing ends successfully

plz mark me as brainliest :)

6 0

2 years ago

A store sells 16 notebooks $7.04 at te same rate what is the cost of 4 notebooks

wolverine [178]

4 x 7.04 ...................................

7 0

2 years ago