The expression 9x represents the number of miles allison hiked, and 4x+5 represents the number of miles that adrian hiked in x days. write an expression to show how many more miles allison hiked than adrian.
a. 5x-5
b. -5x+5
c. 5x+5
d. 13x+5

5x - 5

Step-by-step explanation:

Allison: 9x

Adrian: 4x - 5

To find the difference, we subtract Adrian's number of miles, 4x + 5, from Allison's number of miles, 9x.

9x - (4x + 5) =

We think of the negative sign to the left of the parentheses as a -1, and we distribute it by multiplying -1 by 4x and multiplying -1 by 5.

= 9x -1(4x + 5)

= 9x - 4x - 5

Now we combine like terms. The only like terms are 9x and -4x.

= 5x - 5

5x - 5

Step-by-step explanation:

Allison hiked more than Adrian:

Number of miles Allison hiked - Number of miles Adrian hiked

= 9x - (4x + 5)

= 5x - 5

EDITED VERSION AFTER RELISED I'M WRONG :D

Hope this help you :3

you have orange juice on wednesday. (idk why this is the answer)

step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: