Given the function f ( x ) = x 4 + 8 x 3 , f(x)=x 4 +8x 3 , determine all intervals on which f f is both decreasing and concave up.

The data shown in the table below represents the weight, in pounds, of a little girl, recorded each year on her birthday. age (in years) weight (in pounds) 2 32 6 47 7 51 4 40 5 43 3 38 8 60 1 23 part a: create a scatter plot to represent the data shown above. sketch the line of best fit. label at least three specific points on the graph that the line passes through. also include the correct labels on the x-axis and y-axis. part b: algebraically write the equation of the best fit line in slope-intercept form. include all of your calculations in your final answer. part c: use the equation for the line of best fit to approximate the weight of the little girl at an age of 14 years old.

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?