△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.

Find the missing number. a. 3 : 24 = : 72 b. : 18 = 5 : 9 c. 6: = 36 : 36

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.