6 times the sum of z and 5

5

⋅

(

n

+

1

)

Explanation:

To write Five times the sum of a number and one you first make "a number" into a variable. In this case let's call it  

n

.

Next let's create the sum of a number and one. This would be:  

n

+

1

.

Then to get five times this number we need to multiple this expression by five to get:  

5

⋅

(

n

+

1

)

Step-by-step explanation:

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

my acc plz

step-by-step explanation: