Answer: 1.2
Step-by-step explanation:
Let X denotes the grades on a language midterm at Oak Academy.
As per given ,
X follows normal distribution ( because it has symmetric graph)
Formula for z : 
For X = 70, we have
Hence, the z-score for Ishaan's exam grade = 1.2
Answer:
7
Step-by-step explanation:
Note the relation between x and y
The values of y are 2 less than the corresponding values of x, that is
x = - 3 → y = - 3 - 2 = - 5
x = 0 → y = 0 - 2 = - 2
x = 1 → y = 1 - 2 = - 1
x = 5 → y = 5 - 2 = 3
Thus
x = 9 → y = 9 - 2 = 7 ← missing value
Answer:
$29.26
Step-by-step explanation:
27/100=0.27
0.27*8=2.16
27.00+2.16=29.16
hope this helps!
Answer:
$66.8
Step-by-step explanation:
The formula for simple interest is |=prt.
P=Principal R=Rate T=Time
Now you plug the numbers in |=668*0.05*2
Multiply 668*0.05= 33.4
Then you multiply that by 2= 33.4*2=66.8
That is your answer.
Answer: The last option.
Step-by-step explanation:
1. By definiton, the rotation rule 90° about the origin is:
(x,y)⇒(-y,x)
2. You know that the coordinates of triangle X'Y'Z' are the following:
X'(-2,2)
Y'(0,6)
Z'(1,1)
3. Now, when you apply the rule, you obtain that the coordianates of the pre-image are the following:
X(2,2)
Y(6,0)
Z(1,-1)
Therefore, the answer is the last option.
