a small object with an initial temperature of 135 degrees fahrenheit is dropped into a tube with a temp afire of 60 degrees fahrenheit. the function f(t)=ce^(-kt)+60 represents the situation, where t is the time in minutes c is a constant and k is a constant. after 6 minutes the object has a temperature of 85 degrees. what is the approximate value of k?

your answer would be b

step-by-step explanation:

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

a) 7x=7

step-by-step explanation:

47 - 90 = 43

43 - 180 = x

x = 137