4 game dice have been rolled out. Find the probability that all of the same points will drop.
please

 1/216.

Step-by-step explanation:

The probability that all the 4 dice will show a 1 = (1/6)^4.

There  are also 5 other possible outcomes: 4 2's , 4 3's etc.

So the required probability = 6 * (1/6)^4

= 6 * 1/1296

=  1/216.

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

4n=2m

ratio of m to n: 2/4 = 1/2

answer

a. 1/2