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Leni [432]
3 years ago
9

Help me on this math shiiii

Mathematics
2 answers:
Ulleksa [173]3 years ago
8 0

When you multiply two powers of the same base, you sum the exponents:

a^b\cdot a^c = a^{b+c}

So, in this case,

4^4\cdot 4^{-9} = 4^{4-9} = 4^{-5}

Now, negative exponents works like positive exponents, except you have to invert the number: i.e.

a^{-b} = \dfrac{1}{a^b}

So, you have

4^{-5} = \dfrac{1}{4^5}

weqwewe [10]3 years ago
5 0

Answer:

It is d my lord

Step-by-step explanation:

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Find the value of x.
andrey2020 [161]

Answer:

sum of an exterior angle is 360

2x+56+85+57+4x=360

6x+198=360

6x=360-198

6x=162

x=162/6

x=27

7 0
2 years ago
A theater group holds a fund-raiser. It sells 100 raffle tickets for $7 apiece. Suppose you purchase four tickets. The prize is
lys-0071 [83]

Answer:

Check Explanation

Step-by-step explanation:

The random variable X is the possible net amount that leaves or enters one's hands. It is the amount of winnings!

X can take on value of -($7 × 4) = -$28

(That is, none of the four raffle tickets bought is picked to win)

X can also take on value of [$150 - ($7 × 4)] = $122

(That is, one of the four raffle tickets bought is picked to win)

For the probability distribution function, we find the probabilities of the different amount of winnings.

First of, probability of losing = (96/100) = 0.96

Then, probability of winning = (4/100) = 0.04

Probability density distribution is then given as

X | probability

-$28 | 0.96

$122 | 0.04

To go a step further, expected winnings would be

E(X) = Σ xᵢpᵢ = (-28)(0.96) + (122)(0.04)

= -26.88 + 4.88 = -$22

The expected winnings show that this is not a risk worth taking.

Hope this Helps!!!

4 0
3 years ago
What is the variance?<br> What is the standard deviation, rounded to the nearest whole number?
Dmitry [639]

Answer:

What is the variance? 84000

 What is the standard deviation, rounded to the nearest whole number? 290

5 stars if this helped  

Step-by-step explanation:

8 0
3 years ago
HELP PLEASE WILL GIVE BRAINLIST, I DONT HAVE MUCH TIME.IF I PASS THIS I GET TO GO TO DISNEY
Verdich [7]

Answer: 41

Step-by-step explanation:

I think it’s forty one because each child painted one and there are forty one flower pots. Besides that much information wasn’t given so it is most likely 41 sorry if it wasn’t much help

6 0
3 years ago
What is the answer to <br><br> (4+3i) (2-5i)
Mariana [72]

Answer:

26 - 7 i. hopefully this helps!

7 0
3 years ago
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