A linear function is given a(x)=26-12.4x. the function b is also linear. the equation a(x)=b(x) has exactly one solution at x=5 create a possible equation for function b.

b(x)=-7x-1

Step-by-step explanation:

a(x)=26-12.4x

b(x)=kx+n

We need to know which numbers can be n and k.

We knof that a(5)=b(5), so we have

26-12,4*5=k*5+n

26-62=5k+n

-36=5k+n

The passible equation fir example can be:

k=-7 n=-1, i.e

b(x)=-7x-1

Step-by-step explanation:

hello :

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

the terms of a geometric sequence can be found by beginning with the first term and multiplying by the common ratio repeatedly. a recursive formula for a geometric sequence with common ratio r is given by an=ran−1 a n = r a n − 1 for n≥2 n ≥ 2 .

step-by-step explanation: