4 years ago

What is the probability that all three coins will land on the same side

Mathematics

1 answer:

scZoUnD [109]4 years ago

7 0

1/2 * 1/2 * 1/2 = 1/8 <==

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Answer now!!! Please!!! (Math)

Serggg [28]

Answer:

The correct answer option is $\frac{25}{9}$ .

Step-by-step explanation:

We are given the following expression and we are to evaluate it when $a = 5$ and $k = -2$ :

$[\frac{3^2a^{-2}}{3a^{-1}} ]^k$

Substituting the given values of $a$ and $k$ to get:

$[\frac{3^2(5)^{-2}}{3(5)^{-1}} ]^{-2}$

$\frac{3^{(2\times -2)}.5^{(1\times-2)}}{3^{(-1\times-2)}.5^{(2\times-2)}}$

$\frac{3^{-4}.5^{-2}}{3^{-2}.5^{-4}}$

$3^{-2}.5^2$

$\frac { 1 } { 3 ^ 2 } . 2$

$\frac { 1 } { 9 } . 2 5$

$\frac { 2 5 } { 9 }$

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3 years ago

An inequality is shown below. −8x ≤ 38 Which inequality represents the solution set?

zzz [600]

Answer:

i think its b !!

Step-by-step explanation:

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3 years ago

An object is experiencing an acceleration of 30 m/s2 while traveling in a

mixas84 [53]

Answer:

${ \tt{formular :}} \\ { \boxed{ \bf{centripental \: acceleration = \frac{ {v}^{2} }{r} }}} \\ \\ { \tt{30= \frac{ {3.7}^{2} }{r} }} \\ \\ { \tt{r = \frac{ {3.7}^{2} }{30} }} \\ \\ { \tt{radius = 0.456 \: meters}}$

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3 years ago

If 12 boys take 3 days to paint a room,how long will it take 9 boys to complete the same job?

dedylja [7]

Answer: im convinced that this is 4th grade stuff, yet it makes no sense to me

Step-by-step explanation:

4 0

2 years ago

models the cost, in dollars, of a rug with width x feet. What is the cost of a rug that is 9 feet wide?

meriva

we are given

cost function as

$f(x)=2.15(2x^2-4x-6)$

we can plug x=9

and we get

$f(9)=2.15(2(9)^2-4*9-6)$

we can simplify it

and we get

$f(9)=258$ ...........Answer

5 0

3 years ago

Read 2 more answers