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harkovskaia [24]
3 years ago
10

This is a tough one :/ If f(x) = -x + 7 and g(x) = radical of x– 3, what is (f º g)(4)

Mathematics
1 answer:
Jlenok [28]3 years ago
6 0

Answer:

6

Step-by-step explanation:

To solve, first plug in 4 as your x value for your g(x) equation.

g(4)=\sqrt{4-3} \\g(4)=\sqrt{1} \\g(4)=1

Next, plug in the value of g(4) into your f(x) equation for x.

f(1)=-1+7\\f(1)=6

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algol [13]

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.0043076923076923

Step-by-step explanation:

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2 years ago
What is the property of 6x=72
EleoNora [17]
72/6 = 12
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5 0
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(Set up and solve the system, then answer the associated question)
Dimas [21]

9514 1404 393

Answer:

  • red division: 6 teams
  • blue division: 5 teams

Step-by-step explanation:

We can let r and b represent the numbers of teams in the red and blue divisions, respectively. The total number of goals scored in each division will be the average for that division times the number of teams in that division.

  r - b = 1 . . . . . . there is 1 more red team than blue

  4.5r +4.2b = 48 . . . . . . total goals scored per week

__

Solving by substitution, we have ...

  r = b +1

  4.5(b +1) +4.2b = 48 . . . . substitute for r

  8.7b +4.5 = 48 . . . . . . . . simplify

  8.7b = 43.5 . . . . . . . . . . subtract 4.5

  b = 43.5/8.7 = 5 . . . . . divide by 8.7

  r = b +1 = 6 . . . . . . . . . find r

There are 6 red teams and 5 blue teams.

_____

<em>Additional comment</em>

The basic idea is that you make an equation for each relation given in the problem statement. For a problem like this, you do need to have an understanding of how the average number of goals would be calculated and how that relates to the total goals.

8 0
2 years ago
ITS EASY PLZ HELP
Angelina_Jolie [31]
  • Answer:

<em>m = (y - b)/x</em>

  • Step-by-step explanation:

<em>y = mx + b</em>

<em>mx = y - b</em>

<em>m = (y - b)/x</em>

8 0
3 years ago
Slope pls help ASAP due tonight
kow [346]

Answer:

y=x+ -5

i think

4 0
2 years ago
Read 2 more answers
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