Which equation is correct regarding the measure of Z1?
Om<1= 1/2(a-c)
Om<1= 1/2(a + c)
O m<1 = 1/2(b-d)
Om<1= 1/2(b+d)

Which graph shows a function with a range of all real numbers greater than or equal to -1

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.

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6