9514 1404 393
Answer:
Step-by-step explanation:
Consecutive interior angles are supplementary.
(x -20)° +(4x +15)° = 180°
5x = 185 . . . . . . . . . . . . . . divide by °, add 5
x = 37 . . . . . . . . . . . . divide by 5
__
74° +(5y -4)° = 180°
5y = 110 . . . . . . . . . . . divide by °, subtract 70
y = 22 . . . . . . . . . . divide by 5
Your question is not well presented. See complete question below
Which expression is equivalent to ?
A) –63
B) 36
C)
D)
Answer:
The equivalent of is
Step-by-step explanation:
Given
Expression:
Required:
Find the Equivalent Expression
To find the equivalent of this expression, we make use of law of indices.
One of the laws of indices states that
If we apply this law to the expression above ()
By comparison a = 6 and b = 3.
So, becomes
=
Simplifying further;
=
This can also be written as
=
By splitting the above expression; we have that
=
Multiplication law of indices states that;
a * a * a = a³. (Because they have the same base of a)
So, can then be written as
Hence, =
So, the equivalent of is
................the answer is the B
Answer:
The mean of the z scores will be 0, and the standard deviation of the z scores will be 1.
Step-by-step explanation:
When the data is converted to z-scores the mean and standard deviation no longer stay the same. Both these quantities are transformed into news values.
Values converted to z scores follow a standard Normal curve. This curve is symmetric about the mean. The mean of standard normal curve is 0 with a standard deviation of 1.
Therefore, the correct answer is:
The mean of the z scores will be 0, and the standard deviation of the z scores will be 1.