Answer:
39
Step-by-step explanation:
<u>Data</u>
- standard deviation (sd) = 2
The z-score is computed as follows:
z = (x - mean)/sd
where x is a value of interest, in this case, the missing data value. Replacing with data and solving for x:
-2.1 = (x - 43)/2
-2.1*2 + 43 = x
39 = x
Answer: -836
Step-by-step explanation: Since a negative times a positive always equals a negative, (-22) · (38) equals -836.
The quadratic function that passes through the point (0,6), (3,15.8), and (9.5,0) is y = -0.6x² + 5.07x + 6
<h3>How to determine the quadratic function?</h3>
The points are given as:
(0,6), (3,15.8), and (9.5,0)
A quadratic function is represented as:
y = ax² + bx + c
Next, we substitute the points in the equation.
a(0)² + b(0) + c = 6
a(3)² + b(3) + c = 15.8
a(9.5)² + b(9.5) + c = 0
Simplify the expressions
c = 6
9a + 3b + c = 15.8
90.25a + 9.5b + c = 0
Solve for a, b and c using a graphing calculator
a = -0.6
b = 5.07
c = 6
Hence, the quadratic function is
y = -0.6x² + 5.07x + 6
Read more about quadratic functions at:
brainly.com/question/1214333
#SPJ1
Step-by-step explanation:
(4/3)–1 = 3/4 and (1/4)–1 = 4/1
now we have,
(3/4 - 4)–1 = (-13/4)–1
= -4/13
Answer: $375
Step-by-step explanation:
If you multiply 125•4 it gives you 500 so just subtract 125 from 500 to get your answer