Rt. 78 is approximately 8.9 x 10^3 times longer than rt. 54. rt. 54 is 4.5 x 10^3 miles long. how long is rt. 78? write your answer in scientific notation.

What is a rational number between 9.5 and 9.7

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.