Answer:
<h2>
63mm/min</h2>
Step-by-step explanation:
Area of a triangle = 1/2 * base * height
A = 1/2bh
Rate of change of area is expresssed as dA/dt = dA/db * db/bt
db/dt is the rate at which the base is increasing.
Given db/dt = 18mm/min
A = 1/2*7b
A = 7b/2
dA/db = 7/2
The rate at which the area is changing dA/dt = dA/db * db/bt
dA/dt = 7/2 * 18
dA/dt = 7*9
dA/dt = 63mm/min
<em>Hence the rate at which the area of the triangle is changing is 63mm/min </em>
Answer:
you have to convert them to equivalent units (the same denominators)
Step-by-step explanation:
first, multiply 2 and 7 by 4.
now you have 8/21.
then, make the other fraction the same value.
multiply 1 and 4 by 7.
7/21.
now your equation is 7/21 + 8/21= 15/21.
Answer:
y = -2x - 3
Step-by-step explanation:
-solve for y: y = 1/2x + 2
-perpendicular equals opposite slope: -2
-plug in the point: (1) = -2(-2) + b
1 = 4 + b
b = -3
put it all together: y = -2x - 3
Answer: $55
Step-by-step explanation:
You have Bella’s parents and her grandmother going to the game= 3 non student tickets at $16 per ticket. 16x3=$48 for tickets and 1 car parked = $7. $48 + $7= $55
Answer:
a/(bxy) if b≠0, x≠0, y≠0, x≠y
Step-by-step explanation:
You have correctly simplified the expression. The conditions placed on both the original and simplified forms are that none of the denominator factors may be zero. The denominator factors are b, x, y, and (x-y).
