<span>If scores on a dental anxiety scale range from 0 (no anxiety) to 20 (extreme anxiety), and the scores are normally distributed with a mean of 1111 and a standard deviation of 44, then the z-score for the given score on this dental anxiety scale:9 is .08.
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Answer:
Dimensions of rectangle : Width =
, Length = 
Area of Rectangle = 
Step-by-step explanation:
A rectangle constructed with its base on the x-axis and two of its vertices on the parabola
Supposing coordinates of upper right vertex of rectangle are P = 
Due to parabola symmetry, width of rectangle is twice the horizontal (X) axis distance between Y axis & point P.
Width of rectangle : 
Length of rectangle : 
Area of Rectangle = Length x Width
(
) (
)
= 
Answer:
Bacon
Step-by-step explanation:
Bacon
If tan theta is -1, we know immediately that theta is in either Quadrant II or Q IV. We need to focus on Q IV due to the restrictions on theta.
Because tan theta is -1, the ray representing theta makes a 45 degree angle with the horiz axis, and a 45 degree angle with the negative vert. axis. Thus the hypotenuse, by the Pythagorean Theorem, tells us that the hyp is sqrt(2).
Thus, the cosine of theta is adj / hyp, or +1 / sqrt(2), or [sqrt(2)]/2
The secant of theta is the reciprocal of that, and thus is
2 sqrt(2)
---------- * ------------ = sqrt(2) (answer)
sqrt(2) sqrt(2)
Answer:7.6°
Step-by-step explanation:
Using sine formular
sinA/a =sinB/b
sin33/x = sin90/14
cross multiply
xsin90 = 14sin33
Divide bothside by sin90
x = 14sin33 / sin90
x= 7.6249 / 1
x = 7.6° to the nearest tenth.