y = -
x + 
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
y = 4x + 5 is in this form with slope m - 4
Given the slope of a line m, then the slope (
) of a line perpendicular to it is
= - (1 / m ) = - 
y = -
x + c is the partial equation of the perpendicular line
to find c, substitute ( 2, 7 ) into the partial equation
7 = -
+ c ⇒ c = 
y = -
x +
← equation of perp. line
Answer:
16,6
Step-by-step explanation:
OK so I used the Sine Rule
(10÷Sin37) = (X÷Sin90) [Then cross multiply]
10Sin90 = XSin37
(10Sin90 ÷Sin37) = X = 16,62
They can run if they are older than 21
Answer:
there are 8 <u>boys</u> for every 10 <u>girls</u>
there are 20 <u>boys</u> for every 25 <u>girls</u>
there are 28 <u>boys</u> for every 35 <u>girls</u>
there are 32 <u>boys</u> for every 40 <u>girls</u>
there are 36 <u>boys</u> for every 45 <u>girls</u>
there are 40 <u>boys</u> for every 50 <u>girls</u>
there are 44 <u>boys</u> for every 55 <u>girls</u>