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3 years ago

John has 9 different flags that he wants to hang on the wall. How many different ways can the flags be arranged in a row?

Mathematics

2 answers:

Trava [24]3 years ago

7 0

The flags can be hung in 3 different ways

Masteriza [31]3 years ago

4 0

Answer:

answer is 362,880

Step-by-step explanation:

9!= 9×8×7×6×5×4×3×2×1=362,880

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Find the number which when divided by 2/5 will give 30

artcher [175]

30/2 = 15
15 x 5 = 75
The number is 75.

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3 years ago

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A spinning giant star of initial radius R1 and angular speed ω1 suddenly collapses radially inward reaching a new radius R2 = 0.

tiny-mole [99]

Answer:

K1/K2=4

Step-by-step explanation:

The kinetic energy of a rotating sphere is given by:

$K=\frac{I*\omega^{2} }{2}$

The moment of inertia of a solid sphere is given by

$I=\frac{2MR^{2} }{5}$

The initial kinetic energy is therefore

$K_1=\frac{2MR^{2}*\omega^{2} }{10}$

$K_1=\frac{MR_1^{2}*\omega^{2} }{5}$

The final kinetic energy is given by

$K_2=\frac{MR_2^{2}*\omega^{2} }{5}$

Therefore the relation K1/K2 if R2 = 0.5R1

$\frac{K_1}{K_2} =\frac{5M(R_1)^{2}*\omega^{2} }{5*M(0.5R_1)^{2} \omega^{2}}$

The text says nothing about the final angular velocity just the collapse of the collapse of the radius

$\frac{K_1}{K_2} =\frac{1 }{(0.5)^{2} }=4$

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3 years ago

Select each expression that is equivalent to 3/16 if x = 3/4

iren2701 [21]

Answer:

Step-by-step explanation:

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3 years ago

NEED HELP PLZ

Angelina_Jolie [31]

Answer:

0.14

Step-by-step explanation:

From the question given above, the following data were obtained:

Grade A = 5

Grade B = 10

Grade C = 15

Grade D = 3

Grade F = 2

Sample space (S) = 35

Probability of getting grade A, P(A) =?

The probability that a student obtained a grade of A can be obtained as follow:

Probability of getting grade A, P(A) =

Event of A (nA) / Sample space, (nS)

P(A) = nA/nS

P(A) = 5/35

P(A) = 0.14

Thus, probability that a student obtained a grade of A is 0.14

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3 years ago

9*10^7 is how many times larger than 3*10^-2

oee [108]

Step by step equation

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3 years ago

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