Answer:
(number - mean)/standard deviation.
Plug in the 78 for the number, the 84.5 for the mean, the 3.1 for the standard deviation.
Step-by-step explanation:
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Answer:
=8 1/4 as a fraction or 8.25 in decimal form.
Step-by-step explanation:
The indicated operation is the product of the two fractions. Multiplication opens the brackets.
(-11/2)×(-3/2)
=(-11×-3)/(2×2)
=33/4
The negative signs before each term cancel out in multiplication and division.
=33/4 =8 1/4= 8.25
Choose 1 answer among the improper fraction, Mixed fraction or the decimal.
The polynomial that represent twice the sum of
- x +6 and 7
+ x -1 is : 4
+10
<h3>What is a polynomial?</h3>
A polynomial is any algebraic expression that has the least value of the power of its variable as 2.
When the highest value of the polynomial is 2, it is a called a quadratic expression.
Analysis:
2( -5
-x +6 + 7
+x -1)
2( 2
+ 5) =
4
+ 10
In conclusion, the polynomial that represents the above expressions is 4
+ 10
Learn more about polynomials: brainly.com/question/2833285
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