Since your total for the English book is 5, you make a ratio of
5:150
to make 5 equal 150, you multiply by 30. So if you multiply 3 by 30, you get 90, and 2 by 30 you get 60
60+90=150
new ratio- 90:60
or 90 pages of literature and 60 pages of grammar
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:
brainly.com/question/15016913
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The prime factors of the polynomial 24x4 – 3x are 3x, 2x -1 and (4x2 + 2x + 1)
<h3>Prime factorization</h3>
Given the polynomial function expressed as:
24x^4 – 3x
Factorize
y = 24x^4 – 3x
Factor out the GCF
y = 3x(8x^3 - 1)
Factor the expression in parenthesis
y = 3x((2x)^3 - 1^3)
y = 3x(2x-1)((2x)^2 + 1^2 +2x)
y = 3x(2x -1)(4x^2 +2x + 1)
Hence the prime factors of the polynomial 24x4 – 3x are 3x, 2x -1 and (4x2 + 2x + 1)
Learn more on prime factorization here: brainly.com/question/92257
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Answer:
-52/7 or 7 3/7
Step-by-step explanation:
-5 is also -35/7
2 3/7 is also 17/7
-35/7-17/7 = -52/7
-52/7 = 7 3/7
