2 years ago

If two number cubes are rolled at the same time what is the probability that the two cubes show different numbers?

Mathematics

1 answer:

AlekseyPX2 years ago

7 0

50% i believe because its 2 cubes

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I just need someone to explain how to do it

Mashutka [201]

You just need to substitute the the given function. So if f(-8) then you fill in f(n)=2n+4 which would be f(-8)=2(-8)+4. Which is -12.

hope this helps !

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3 years ago

Can someone PLEASE help me solve this equation ? due soon

RideAnS [48]

$\sf{Given : 3tanx + 7 = \dfrac{2}{(1 - sinx)(1 + sinx)}}$

We know that : (a - b)(a + b) = a² - b²

$\implies \sf{3tanx + 7 = \dfrac{2}{1 - sin^2x}}$

We know that : 1 - sin²x = cos²x

$\implies \sf{3tanx + 7 = \dfrac{2}{cos^2x}}$

$\sf{\bigstar \ \ We \ know \ that : \boxed{\sf{\dfrac{1}{cos^2x} = sec^2x}}}$

$\implies \sf{3tanx + 7 = 2sec^2x}$

We know that : sec²x = 1 + tan²x

$\implies \sf{3tanx + 7 =2(1 + tan^2x)}$

$\implies \sf{2 + 2tan^2x - 3 tanx - 7 = 0}$

$\implies \sf{2tan^2x - 3 tanx - 5 = 0}$

$\implies \sf{2tan^2x - 5tanx + 2tanx - 5 = 0}$

$\implies \sf{2tanx(tanx + 1) - 5(tanx + 1) = 0}$

$\implies \sf{(tanx + 1)(2tanx - 5) = 0}$

$\implies \sf{tanx = -1 \ (or) \ tanx = \dfrac{5}{2} }$

8 0

2 years ago

Median: What is the MEDIAN for this data set?

Travka [436]

Answer:

Step-by-step explanation:

27 - middle AKA median.

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2 years ago

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Evaluate the function f(x)= -2x +1 for f(3). A)-5 B)6 C)7 D)10

pantera1 [17]

f(x)= -2x +1 for f(3)

f(3) = -2(3) + 1 = -5

answer
A)-5

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2 years ago

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There are seven cars parked in a row exactly the same distance from each other the first car is 31 inches from the second car th

MakcuM [25]

Answer:

the distance of the 3rd car from the 7th car is

217 inch

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2 years ago