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boyakko [2]
3 years ago
14

If f(x) = 4 – x^2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

Mathematics
1 answer:
inna [77]3 years ago
7 0

Answer:

23

Step-by-step explanation:

f(x)=4-x²

g(x)=6x

g(x)-f(x)=6x-(4-x²)

g(x)-f(x)=6x-4+x²

so, when (g-f)(3), it means that x=3

.:(g-f)(3)=6(3)-4+(3)²

= 18 - 4 +9

=14+9

=23

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4 0
4 years ago
Read 2 more answers
Pleaseee someone help me :( Ive been stuck on this for an hour
Whitepunk [10]

Answer:

The number of times organism B's population is larger than organism A's population after 8 days is 32 times

Step-by-step explanation:

The population of organism A doubles every day, geometrically as follows

a, a·r, a·r²

Where;

r = 2

The population after 5 days, is therefore;

Pₐ₅ = = 32·a

The virus cuts the population in half for three days as follows;

The first of ta·2⁵ he three days = 32/2 = 16·a

The second of the three days = 16/2 = 8·a

After the third day, Pₐ = 8/2 = 8·a

The population growth of organism B is the same as the initial growth of organism A, therefore, the population, P₈ of organism B after 8 days is given as follows;

P₈ =  a·2⁸ = 256·a

Therefore, the number of times organism B's population is larger than organism A's population after 8 days is P₈/Pₐ = 256·a/8·a = 32 times

Which gives, the number of times organism B's population is larger than organism A's population after 8 days is 32 times.

Hope this helps you out! :)

Also, it's OK! This was actually pretty hard to figure out!

6 0
4 years ago
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