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3 years ago

What is the value of the expression 3^−4 ?

Mathematics

2 answers:

ikadub [295]3 years ago

4 0

3^-4 = 1/3^4 = 1/81

hope it helps!

lisabon 2012 [21]3 years ago

4 0

Thanks for the question!

When there is a negative exponent, do the problem the same, but make it it’s reciprocal:

3^-4
1/3^4
1/81

Hope this helped!

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Long divison math for 262 by 9

Komok [63]

9 ÷ 262

_2 9_R 1
9 |262
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3 years ago

Find the solution to the system of equations below (you can do this by substitution or elimination).

rewona [7]

Step-by-step explanation:

y=6+4x, as equation (iii)

=> -5x-(6+4x)=21

=> -5x-6-4x=21

=> -5x-4x-6=21

=> -9x-6=21

=> -9x=21+6

=> -9x=27

x= -3, by dividing both sides by -9

So, by inserting x in the first equation,

=> -4(-3)+y=6

=> 12+y=6

=> y=6-12

=> y= -6.

Therefore, x= -3 and y= -6

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2 years ago

The annual 2-mile fun-run is a traditional fund-raising event to support local arts and sciences activities. It is known that th

victus00 [196]

Answer: 0.0228

Step-by-step explanation:

Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-

$\mu=30\\\\\sigma=5.5$

If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.

Let X be the random variable that represents the finish times for this event.

z score : $z=\dfrac{x-\mu}{\sigma}$

$z=\dfrac{19-30}{5.5}=-2$

Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-

$P(X$

Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228

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2 years ago

What is 95% of 120 games?

Basile [38]

The answer to your question is 114

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3 years ago

Read 2 more answers

Write each fractio in simplest form.4/10

hjlf

4/10 would be 2/5 in simplest form.

I hope this helps! (:

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2 years ago

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