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Tems11 [23]
3 years ago
7

Lisa was finding the median of the heights of the people in her family: 54 inches, 48 inches, 68 inches, 67 inches, 73 inches. S

he thinks the median height is 68 inches. Explain what Lisa's error was...Why is Lisa wrong?
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
6 0

Answer:

Lisa is wrong because she didn't list the numbers from smallest to greatest. 67 is the median height.

48, 54, 67, 68, 73

Step-by-step explanation:

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Gala2k [10]

Answer:

<u>Option 3</u> satisfies the equation y = -2x + 1.

Step-by-step explanation:

7 = -2*-3 + 1 makes sense

-5 = -2*3 + 1 also makes sense

-9 = -2*-9 + 1 is correct

Have a nice day!

6 0
3 years ago
117. Sami opens an account and deposits $100 into it at the end of each month. The account earns 2% per year compounded monthly.
Sergio [31]

Answer:

The explicit function is:

S_{n} =Pz^{n-1} +C(\frac{z^{n-1}-1}{z-1} )

where

z=(1+\frac{0.02}{12})

and we calculate S12:

S_{12} = $1211.06

Step-by-step explanation:

Expanding a few steps of the compound interest:

S_{1}=100\\S_{2}=S_{1}(1+\frac{0.02}{12})+100\\S_{3}=S_{2}(1+\frac{0.02}{12})+100\\...\\S_{n}=S_{n-1}(1+\frac{0.02}{12})+100

We can write:

(1+\frac{0.02}{12})=z

100=C for deposits

Then, expanding the previous equations would yield:

S_{1}=C\\S_{2}=Cz + C\\S_{3}=Cz^{2}+Cz + C\\S_{n}=Cz^{n-1} +...+Cz+C

This is a geometric series form, which can be simplified to:

S_{n}=C(\frac{z^{n}-1}{z-1} )

plugin in the values for the 12 month gives:

S_{12}=100(\frac{(1+\frac{0.02}{12})^{12} -1}{\frac{0.02}{12}})=1211.0613

6 0
3 years ago
The area of a gymnasium floor is 264 square yards . The floor is 11 yards wide . How long is the floor
schepotkina [342]
A x b = 264
a=11
b= 264/11
b=24
3 0
3 years ago
Read 2 more answers
Badria, Khalid, and Yousif have a total of 95 in their wallets. Yousif has 5 less than Badria. Khalid has 3 times what Yousif ha
schepotkina [342]

Answer:

<u>Amount in Badria's wallet:</u> 18

<u />

<u />

<u>Amount in Khalid's wallet:</u> 54

<u />

<u>Amount in Yousif's wallet:</u> 23

Step-by-step explanation:

6 0
2 years ago
The height h, in feet, that an arrow will reach t seconds after being shot directly upward is given by the formula h = 112t - 16
Crank

Answer: E. 384ft.

Step-by-step explanation:

112 - 16 = 96

96 x 4 = 384 ft.

Hopefully this helps! :)

7 0
3 years ago
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