Brianna wants to buy a digital camera for a photography class. One store offers the camera for $53 down and a payment plan of $1
1 answer:
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The plus-minus sign represents that there are two possible outcomes.
In this case, we have
. When we branch out the possibilities we got 2 values: 
and 
Those are the roots of this equation. When they ask their product, they want you to multiply both numbers.
When we multiply them:
When we FOIL the we get:
Simplify:
So the product of the two roots of this equation is 6.
In this case, we have
Those are the roots of this equation. When they ask their product, they want you to multiply both numbers.
When we multiply them:
When we FOIL the we get:
Simplify:
So the product of the two roots of this equation is 6.
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
⇒
⇒
⇒
Hence we can conclude that the value of z-score for a score that is three standard deviations above the mean is 3.
Learn more about z-score here
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Answer:
<h2><em>Three to the three fifths power.</em></h2>Step-by-step explanation:
The given expression is
To simplify this expression, we have to use a specific power property which allow us to transform a root into a power with a fractional exponent, the property states:
Applying the property, we have:
Now, we multiply exponents:
Then, we sum exponents to get the simplest form:
Therefore, the right answer is <em>three to the three fifths power.</em>