Step-by-step explanation:
you can guess area of whole is l×b so area of half ie area of triangle =1/2 lxb
Answer:
<h2>
m = -2</h2>
Step-by-step explanation:
(3, 4) ⇒ x₁ = 3, y₁ = 4
(7, -4) ⇒ x₂ = 7, y₂ = -4
So the slope:
Answer:
3x^2+14x-2 if you meant f(x)=3x^2+10x and g(x)=4x-2
and I think C was meant to read 3x^2+14x-2
Please correct me if I have mistranslated. Thank you kindly.
Step-by-step explanation:
I kind of wonder if you meant f(x)=3x^2+10x and g(x)=4x-2.
(f+g)(x)=f(x)+g(x)
=(3x^2+10x)+(4x-2)
=3x^2+10x+4x-2
=3x^2+(10x+4x)-2 I paired 10x and 4x together because they are like terms
=3x^2+14x-2
Answer:
6,000 meters
Step-by-step explanation:
Length of one lap d = 400 m
Lee's speed = u = 7.2 km/h. Shelby's speed v = 9 km/h
After time t, Shelby will run x meters to cover exactly 3 more laps than Lee.
So x = vt
and
x - 3d = ut
Note t = x/v, then
x - 3d = x*u/v
x (1 - u/v) = 3d
x = 3d/(1 - u/v) = 3*400/(1 - 7.2/9) = 6,000 meters
