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Elden [556K]
3 years ago
15

An airplane is flying due west at a velocity of 100 m/s. What is the magnitude of the airplanes resultant velocity?

Mathematics
2 answers:
Lelechka [254]3 years ago
8 0

Answer:

100.12 m/s

Step-by-step explanation:

guapka [62]3 years ago
8 0

Answer:

The answer would be 112 m/s

Step-by-step explanation:

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A box contain 12 balls in which 4 are white 3 are blue and 5 are red.3 balls are drawn at random from the box.find the chance th
Anastasy [175]

Answer:

3/11

Step-by-step explanation:

From the above question, we have the following information

Total number of balls = 12

Number of white balls = 4

Number of blue balls = 3

Number of red balls = 5

We solve this question using combination formula

C(n, r) = nCr = n!/r!(n - r)!

We are told that 3 balls are drawn out at random.

The chance/probability of drawing out 3 balls = 12C3 = 12!/3! × (12 - 3)! = 12!/3! × 9!

= 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/(3 × 2 × 1) × (9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1)

= 220 ways

The chance of selecting 3 balls at random = 220

To find the chance that all the three balls are selected,

= [Chance of selecting (white ball) × Chance of selecting(blue ball) × Chance of selecting(red balls)]/ The chance/probability of drawing out 3 balls

Chance of selecting (white ball)= 4C1

Chance of selecting(blue ball) = 3C1 Chance of selecting(red balls) = 5C1

Hence,

= [4C1 × 3C1 × 5C1]/ 220

= 60/220

= 6/22

= 3/11

The chance that all three are selected is = 3/11

4 0
3 years ago
What is a number in exponential notation that decreases in value as the exponent increases in value​
Eva8 [605]

Answer:

Any fraction

Step-by-step explanation:

Example:

(2/3)² = 4/9

2/3 > 4/9

7 0
3 years ago
Read 2 more answers
To describe a sequence of transformations that maps triangle ABC onto triangle a"b"c", a student starts with a reflection over t
Paha777 [63]

i dont quite get the question but...

i guess this is how it is.

Take the mirror image of∆ABC Through the a line through the point y=3.

The new ∆ABC would have point C=(4,2)

B=(3,-6) A=(1,-3)

Now shifting the ∆ABC one unit (<em>i.e. 2 acc. to the graph as scale is 1 unit =2</em>) towards right ( or <em>adding 2 to the x coordinates of ∆ABC)</em>

We get the Coordinates of triangle ABC as A=(3,-3) B=(5,-6) C=(6,2).

This coordinate is the same coordinates of ∆A"B"C".

Hope it helps...

Regards;

Leukonov/Olegion.

8 0
3 years ago
(7 x 10^5) divided by (2 x 10^2) in standard form
RideAnS [48]

Answer:

3.5x10³

Step-by-step explanation:

7x10^5=700000

2x10^2=200

Divide both by 100

7000÷2=3500

divide by 1000 as standard form is less than 10

1000 is 10 cubed

3500÷1000 is 3.5

∴3.5x10^3 is answer

7 0
2 years ago
The number of major faults on a randomly chosen 1 km stretch of highway has a Poisson distribution with mean 1.7. The random var
tiny-mole [99]
The probability can be modeled using the following formula:
P(X =3)
wherein X follows the density 
P(X=k)=\frac{1.7^ke^{-1.7}}{k!}
Now for k = 3 we get:
P(X=3)=\frac{1.7^3e^{-1.7}}{3!}=0.15
The probability we are looking for is 0.15.
Do you have any question ? 
6 0
3 years ago
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