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serg [7]
3 years ago
8

HELP ASAP I ONLY HAVE 6 MINUTES LEFT!!

Mathematics
1 answer:
MissTica3 years ago
6 0

Step-by-step explanation:

diameter=14ft

radius=7ft

circumference=2πr

=2×3.142×7

=43.988ft

=44ft(to the nearest whole number)

Area= πr2

=3.142×7×7

=153.958ft

=154ft(nearest whole number)

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The minutes will be ur x axis and the cm of snow will be ur y axis

(10,2),(30,3.6).....using 2 points and the slope formula : (y2 - y1) / (x2 - x1)

slope = (3.6 - 2) / (30 - 10) = 1.6 / 20 = 0.08 cm per minute <=== 
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3 years ago
State the type of hypothesis test to be used in the following situation: Researchers hoped to determine whether time spent watch
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t-test for difference in slopes

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Step-by-step explanation:

t-test can be used to determine signifiance in difference in slopes of of fit vs time and not fit vs time graph

The data shows that as number of hours spent watchnig television increases, there is no increasing or decreasing trend in number of people fit or not fit. The number of people fit or not fit seems to be distributed around 629 for 1-2 hours of watching television. There trend is not consistent in both cases with increasing number of hours

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3 years ago
Which equation represents a line perpendicular to the x axis<br><br> x=-4<br> y=x+2<br> y=2<br> y=x
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x x=-4 y=x+2

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A certain high school class consists of juniors and seniors. There are
Genrish500 [490]

Answer:

10 SENIORS

Step-by-step explanation:

x=# of seniors

y=# of juniors

x+y=23, x=2y-7

  1. plug the value of x in the second equation into the first
  2. (2y-7)+y=23
  3. Remove parentheses
  4. 2y-7+y=23
  5. Combine like terms
  6. 3y-7=23
  7. Add 7 to BOTH sides
  8. 3y=30
  9. divide BOTH sides by 3
  10. 3y/3=30/3
  11. y=10
  12. There are 10 juniors in the class
  1. FINAL STEPS
  2. Plug y (which is 10) into the first equation
  3. x+y=23
  4. x+10=23
  5. subtract 10 from BOTH sides
  6. x=13
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8 0
3 years ago
The smiley family had a $62.00 bill and service was great! The tip 20% what is the. Total they paid
Georgia [21]

Answer:

$74.40 cents

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Given the following question:

20% of 62

In order to find the answer, we use the formula to calculate percentage, then we add that answer onto the bill.

\frac{p\times n}{100}
\frac{20\times62}{100} =20\times62=1240\div100=12.4
=12.4

<u>Now add:</u>
62+12.40=74.40
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Which means in total after a 20% tip the Smiley family paid "$74.40 cents" for their meal.

Hope this helps.

7 0
2 years ago
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