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Dvinal [7]
2 years ago
13

Please help asap!! mark brainlyest.

Mathematics
2 answers:
KIM [24]2 years ago
7 0

Answer:

Multiply everything by 15 because when you divide 40 from 600 you get 15. We will only use the 2 numbers on the right of both samples. Then find the total of each row

<u>18 turns into 270| 10 truns into 150 </u>=420

<u>19 turns into 285| 7 turns into 105</u>=390

Headline A: Both samples show that over 300 students want to go after 8 am which makes the headline true.

Headline B: 8:30 is actually the most popular start time because both samples show greater amount of students choose 8:30 as the start time than any other time.

Headline C: This statement is not supported by the data, the data shows that 7:45 am is the second most popular selection.

Headline D: This statement is not supported by the data because both samples show that over 100 people chose 9:00.

I hope this is a good answer for you and I hope you have a nice day.

P.S. Please mark me braineast!

DerKrebs [107]2 years ago
5 0
Headline A: Both samples show that over 300
students want to go after 8 am which makes
the headline true.
Headline B: 8:30 is actually the most popular
start time because both samples show greater
amount of students choose 8:30 as the start
time than any other time.
Headline C: This statement is not supported by
the data, the data shows that 7:45 am is the
second most popular selection.
Headline D: This statement is not supported by
the data because both samples show that over
100 people chose 9:00.

Give the other guy brainliest please
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Step-by-step explanation:

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Please write the answer​
Travka [436]

\sf \dfrac{3^x - 5 \times 3^{(x-2)}}{3^{(x-3)}} \\ \\ \longrightarrow \sf \dfrac{ {3}^{x} }{ {3}^{(x - 3)}} - \frac{5}{ {3}^{(x - 3)} } \times {3}^{(x - 2)}  \\ \\ \longrightarrow \sf {3}^{[x - (x - 3)]} - \dfrac{5}{ {3}^{(x - 3)} } \times {3}^{(x - 2)} \\ \\ \longrightarrow \sf {3}^{3} - \dfrac{5}{ {3}^{(x - 3)} } \times \dfrac{ {3}^{x}}{9} \\ \\ \longrightarrow \sf {3}^{3} - \dfrac{5}{ \bigg(\dfrac{ {3}^{x} }{ {3}^{3} }\bigg) } \times \dfrac{ {3}^{x}}{9}\\ \\ \longrightarrow \sf {3}^{3} - \dfrac{ ({3}^{3})( 5)}{ {3}^{x} } \times \dfrac{ {3}^{x}}{9}\\ \\ \sf \longrightarrow {3}^{3} - (5 \times 3) \\  \\ \longrightarrow \sf \: 27 - 15 \\  \\ \longrightarrow \leadsto{\underline{\boxed{\sf{ \pink{ 12}}}}}

6 0
2 years ago
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the tea
GenaCL600 [577]

Answer:

3

Step-by-step explanation:

Mean = (3+7+-1+1+0+5+-3+2+-1+6+5+-2)/12

= 1.833

median is middle of ordered numbers -3/-2/-1/-1/0/1/2/3/5/5/6/8/7 here between the 6th and the 7th since with even number sample, there is not a unique middle. This would be 1.5

Standard deviation = √ 123.67/12

√10.3

=3.21

the change score that is 2.2 standard deviations below the mean.

1.83 - 2.2(3.21)

= 5.232

5 0
3 years ago
Read 2 more answers
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