△XYZ has coordinates X

(

3

,

5

)

X(3,5),

Y

(

3

,

2

)

Y(3,2) &

Z

(

7

,

2

)

Z(7,2). Give the coordinates for

△

X

′

Y

′

Z

′

△X

′

Y

′

Z

′

, after rotating

90

deg

⁡

90deg counterclockwise about the origin.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6

Arectangle has a perimeter of 24 inches. if the width is 5 more than twice the length, what are the dimensions of the rectangle?