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Pavlova-9 [17]
3 years ago
7

(1 point) The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Re

cently, Southwest Air had the best rate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 20 Southwest flights and observing whether they arrive on time.

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0

Answer:

No. Southwest flights did not arrive on time.

Step-by-step explanation:

Please see attachment

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The line plot below shows the number of kilometers Clara ran each day for 14 days. Find the average. Hint: Each X on the line pl
vitfil [10]

Answer:

Average=7

Step-by-step explanation:

From the line plot

  • 4 has three Xs above it
  • 5 has four Xs above it
  • 6 has four Xs above it
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  • 15 has one X above it
  • 16 has one X above it

Therefore, the values are:

4,4,4,5,5,5,5,6,6,6,6,11,15,16

Average=\dfrac{(4*3)+(5*4)+(6*4)+11+15+16}{14} \\=\dfrac{12+20+24+11+15+16}{14}\\=\dfrac{98}{14}\\

Average=7

4 0
3 years ago
Find the coordinates of the midpoint M and the distance between P(-6, -1) and Q(1,2). Round to the nearest
nlexa [21]

Answer:

  • M(-3.5, 0.5)

Step-by-step explanation:

<u>Given points:</u>

  • P(-6, -1) and Q(1,2)

<u>Midpoint by using midpoint formula:</u>

  • x = (-6 + 1)/2 = -3.5
  • y = (-1 + 2)/2 = 0.5
  • M(-3.5, 0.5)
4 0
3 years ago
X and Y are continuous values, both measured to 2 significant figures. X=230 and Y=400. work out the greatest possible value of
kirill115 [55]
"Two significant figures" means that a digit after the second one could actually be anything ... it wasn't measured. 'X' could be anything from 230 to 239. 'Y' could be anything from 400 to 409. The greatest possible value of that fraction is. (239)/(409 squared) .
8 0
4 years ago
If f(x) = 2x - 1 and g(x)=x²-3x-2, find (f+ g)(x).
Ira Lisetskai [31]

\text{Given that,}~ f(x) = 2x -1~ \text{and}~ g(x) = x^2- 3x -2 \\\\\text{Now,}\\\\~~~(f+g)(x)\\\\=f(x) + g(x)\\\\=2x-1 +x^2 -3x -2\\\\=x^2 -x -3

4 0
2 years ago
Read 2 more answers
HELPPPP PLEASE WILL GIVE OUT BRAINLIEST
andrew11 [14]

Answer:

D

I guess you just have to add them

5 0
3 years ago
Read 2 more answers
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