Solve for each variable in the equation 5x+6y+7z=90 a. x
b. y
c. z
d. How are the results in parts (a)-(c) related?
Help! Due at 12:59.

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42