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mrs_skeptik [129]
4 years ago
10

What’s the z score ?

Mathematics
1 answer:
castortr0y [4]4 years ago
7 0
The value of the z-score tells you how many standard deviations you are away from the mean. ... A positive z-score indicates the raw score is higher than the mean average. For example, if a z-score is equal to +1, it is 1 standard deviation above the mean. A negative z-score reveals the raw score is below the mean average
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Pleeeeeeeaaaaassssseeeee heeeeeellllllpppppp
loris [4]
I got (-6.28, -0.76). 

Step 1.) Write out the problems
   -2x=8-6y
   -15x=21-6y

Step 2.) Pick a problem and solve for X
   -2x=8-6y =  x=-4-3y

Step 3.) Plug in the x
    (-15)(-4-3y)= 21-6y
    60 + 45y= 21-6y

Step 4.) Solve for y
    y=-0.76

Step 5.) Plug in the y value into one of the equations
    -2x= 8- 6(-0.76)
    -2x= 8 + 4.56
     x= -6.28

Step 6.) Check your answers
    -2(-6.28)=8-6(-0.76)
    12.56=12.56

Step 7.) Write it out
   (-6.28,-0.76)
7 0
3 years ago
Question 2: Ethan has a collection of 50 DVDs. If 32 of the DVDs are comedies, what percent of the DVDs are not comedies?
gladu [14]

Answer: 36% are not comedies

Step-by-step explanation:

32/50 = 64%

100 - 64 = 36

3 0
2 years ago
What is the measure of Angle N M R?
hichkok12 [17]

Answer:

The correct answer is 63.

Step-by-step explanation:

7 0
3 years ago
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3 apples at the store for $3.90. This week he purchased 5 apples for $6.50. WHAT IS THE THE EQUATION IN SLOPE INTERCEPT FORM FOR
qwelly [4]
To find the slope, use y2-y1/x2-x1
In this case, it is -7-3/4-(-1)
-10/5 
-2/1
That is the same as -2, so the answer is -2
4 0
3 years ago
Which is not equal to 60%?
kobusy [5.1K]

Answer:

D. 10/50

Step-by-step explanation:

3/5 = 60%

12/20 = 60%

15/25 = 60%

10/50 = 20%

3 0
3 years ago
Read 2 more answers
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