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tino4ka555 [31]
3 years ago
13

Mr. Zhou surveyed his 25 students to find out how much time they spent doing homework each week. The results of his survey are s

hown in the table below PLS HELP QUICK
Mathematics
2 answers:
skad [1K]3 years ago
6 0

Answer:

it is 12

Step-by-step explanation:

Phantasy [73]3 years ago
3 0

Answer:

I think it's 12

Step-by-step explanation: i'm sorry if you got it wrong  have the same question to.... sorry

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Let f (x ) = 3x² - 4 and let g (x) = 2x + 1. <br> Find the value of f[g(2)].
stepan [7]

Answer:

The value of f[g(2)] is 71.

Step-by-step explanation:

We need to find f[g(2)].

The first step is finding f[g(x)]

We have that:

f(x) = 3x^{2} - 4

g(x) = 2x + 1

To find f[g(x)], the first step is replacing each x is f by g(x). So

f(g(x)) = 3(2x+1)^{2} - 4

Now we replace x by 2

f(g(2)) = 3(2*2+1)^{2} - 4 = 75 - 4 = 71

The value of f[g(2)] is 71.

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