If you are looking to write an inequality equation that models this situation, then the answer would be: 
. The "at most" signals to use the less than or equal to sign.
Z-score if Tobi scored 145 on an iq test with a mean of 100 and a standard deviation of 15 is 3.
According to the given question.
Tobi scored 145 marks on an iq test.
⇒ x = 145
Mean, μ = 100
Standard deviation, σ = 15
As we know that,
A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values.
And it is calculated by formula
Z = x -μ/σ
Where,
Z is a Z-score
μ is mean
x is the observed value
Therefore,
The Z-score if Tobi scored 145 on an iq test with a mean of 100 and a standard deviation of 15
= 145 - 100/15
= 3
Hence,Z-score if Tobi scored 145 on an iq test with a mean of 100 and a standard deviation of 15 is 3.
Find out more information about Z-score here:
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Answer:
Step-by-step explanation:
(X^2+y^2)^2 polynomial identify. Simplify
i.e
Solution:
We have the identity,
In the Question
Substituting in the identity we get
Also we have
Which is the required
Answer:
Step-by-step explanation:
Plug in 4 for x
2(4) + 5y = 28
8 + 5y = 28 (subtract both sides by 8)
5y = 20 (divide both sides by 5)
y = 4
Answer:oh goodness
Step-by-step explanation:
