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strojnjashka [21]
3 years ago
12

Offering 25 pts and a mark for real answers please!!! Flying against the jetstream, a jet travels

Mathematics
1 answer:
almond37 [142]3 years ago
4 0

Answer:

  • plane: 850 mph
  • jet stream: 150 mph

Step-by-step explanation:

The speed of the plane is the average of the two speeds. The speed of the jet stream is half their difference.

against: (5600 mi)/(8 h) = 700 mi/h

with: (4000 mi)/(4 h) = 1000 mi/h

Plane's speed = (700 + 1000)/2 mi/h = 850 mi/h

jetstream speed = (1000 -700)/2 mi/h = 150 mi/h

The rate of the jet in still air is 850 mi/h; the rate of the jetstream is 150 mi/h.

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Lera25 [3.4K]

Answer:

A. We have extremely strong evidence to reject H0.

Step-by-step explanation:

Let P be the proportion of non-retirees in 2015 who did not think that Social Security would be able to pay a retirement benefit by the time that they retire.

According to the data null and alternative hypotheses should be:

  • H_{0}: P=0.60
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Test statistics is -4.29 and p-value of the statistics is p<0.001

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8 0
3 years ago
Plz i need help walk me through it, thanks​
SVETLANKA909090 [29]

Answer:

p=36^{\circ}

Step-by-step explanation:

We can prove that a tangent will always be perpendicular to the radius touching it. So, the other angle in the diagram is 90^{\circ}.

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6 0
2 years ago
1-12 I don’t know if you can please help me thanks
katovenus [111]

1 24

2 .41

3 180

4  2000

5   46

6  .18

7   60.5666

8   6.5

9   128

10   .8

11    3.628739

12   4000


pretty sure juh looked it up hope it helps!

4 0
2 years ago
12 meters in 28 seconds =? Also, How did you come to the answer?
balandron [24]
4 meters per second. you just divide 28 seconds with 12 meters and that will give you 4 meters per second.Please mark as brainliest...
6 0
3 years ago
What is 15 percent in 660
Elodia [21]

Answer:

99

Step-by-step explanation:

10% = 66

5% = 33

66+33=99

8 0
2 years ago
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