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Gnom [1K]
2 years ago
10

What is this for q 9 plsss helpppp

Mathematics
1 answer:
Allisa [31]2 years ago
3 0

Answer:

9 square units

Step-by-step explanation:

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What is the average rate of change between:
Alex_Xolod [135]
The average rate of change is 1
2-1=1
3-2=1
4-3=1
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2 years ago
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A score that is three standard deviations above the mean would have a z score of
tia_tia [17]

The value of z-score for a score that is three standard deviations above the mean is 3.

In this question,

A z-score measures exactly how many standard deviations a data point is above or below the mean. It allows us to calculate the probability of a score occurring within our normal distribution and enables us to compare two scores that are from different normal distributions.

Let x be the score

let μ be the mean and

let σ be the standard deviations

Now, x =  μ + 3σ

The formula of z-score is

z_{score} = \frac{x-\mu}{\sigma}

⇒ z_{score} = \frac{\mu + 3\sigma -\mu}{\sigma}

⇒ z_{score} = \frac{ 3\sigma }{\sigma}

⇒ z_{score} = 3

Hence we can conclude that the value of z-score for a score that is three standard deviations above the mean is 3.

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6 0
2 years ago
Explain how to write 50,000 using exponents
In-s [12.5K]
The answer would be 5x10^4
5 0
3 years ago
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The solution set for <br> 6a^2-a-5=0
Alex_Xolod [135]

Answer:

a=1 or a=5/6

Step-by-step explanation:

I'm going to attempt to factor 6a^2-a-5

a=6

b=-1

c=-5

Find two numbers that multiply to be a*c and add to be b.

a*c=-30                                   =-6(5)

b=-1                                          =-6+5

So replace -a with -6a+5a in the expression we started with

6a^2-6a+5a-5

now we factor by grouping

6a(a-1)+5(a-1)

(a-1)(6a-5)

Now let's solve the equation:

(a-1)(6a-5)=0

So a=1 or a=5/6

4 0
3 years ago
A company sells DVDs. If you buy 3 DVDs the cost is $23.85, and if you buy 5 DVDs the cost is $34.75. Which is the better deal?
alex41 [277]

Answer

the 5 DVDs would be the better deal

Step-by-step explanation:

7 0
3 years ago
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