The city basketball league includes high schools from within the city limits. the table
two different heights who play different positions.
number of players of
85
guard forward center totals
over 6 feet 25
under 6 feet 130
totals 155 150 65 370
285
a. russell is 5'9". what is the probability he is a forward?
b. peter is 6'2". what is the probability he is a guard?

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.

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -