A and C have two identical real roots (x=0). B has only complex roots. That leaves D.
Answer:
4
Step-by-step explanation:
Put 2 where x is and do the arithmetic.
f(2) = 10 -3∙2 = 10 -6
f(2) = 4
f(x) = 0.5x - money per ticket
g(x) = 8x - tickets per hour
We replace g(x) with its value (8x).
f(g(x)) = f(8x)
We replace the x in f(x) with 8x.
f(8x) = 0,5 × 8x
f(8x) = 4x
<u>⇒ f(g(x)) = 4x</u>
<u></u>
Correct answer:
a.<em> f(g(x)) = 4x, which represents the money Aurora made in dollars per hour</em>
Answer:
angle B=122degree
Step-by-step explanation:
straight line AC =180degree, then 180-(21+37)=122 degree
a=b*sinA/sinB=84.5
c=b*sinC/sinB=141.9
Answer:
7
Step-by-step explanation:
Since the median is equal to the sum of the two bases divided by two
, we have: QR=(5x-14+17)/2; but QR= x+12, so x+12=(5x+3)/2; 2(x+12)=5x+3; 2x+24=5x+3; ordering 5x+3=2x+24; 5x-2x=24-3; 3x=21 so x=21/3 = 7