Answer:
<em>y = - </em>
<em> x + </em>
<em> </em>
Step-by-step explanation:
y = 12x - 9
Slope of line perpendicular to given is m = -
P(7, 10)
y - 10 = -
(x - 7)
<em>y = - </em>
<em> x + </em>
<em> </em>
Use the formula
Area= base times height.
You're given that area =300cm^2 and base=20 cm.
Plug these into the equation to get 300=20 x height. Now, you just need to solve for height. To do this, you need to undo the multiplication of b x h by dividing the area by the base.
So, h = 300/20
Simplify for an answer of 15.
Answer:
-4
Step-by-step explanation:
2 1/4 - 7 1/2 = -5.25
-5.25 - (-1 1/4) = -4
According to the theory
b^2 = (13)^2 - (7)^2
b^2 = 169 - 49 = 120
b= root(120)
b= 10.95 cm