A 30\,\text {kg}30kg30, start text, k, g, end text dog runs at a speed of 15\, \dfrac{\text m}{\text s}15 s
m

15, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction.
What is the dog’s kinetic energy?
Round answer to two significant digits.

3,400 J

Step-by-step explanation:

Got it off Kahn Academy, please just trust me on this.

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.

i think is g(1)=-1.

hope that i can