2 years ago

How to solve this equation 3(2x+7)=6(x+4)-3

Mathematics

1 answer:

SVEN [57.7K]2 years ago

6 0

Distribute :

3(2+7)=6(4)−3

6x+21=6(x+4)-3

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vivado [14]

Answer:

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Step-by-step explanation:

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3 years ago

Ten runners join a race. In how many possible ways can they be arranged as first, second, and third placer? Pls answer

Daniel [21]

Ans: 720

<span>This is equal to the number of different arrangements of three persons from a group of 10 persons </span>

Required number of ways = 10P3 = 720

OR can be solved in this way
select 3 runners (10C3 ways)
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<span>Total = 10C3×3! = 720

</span>

5 0

2 years ago

Read 2 more answers

For the functions f(x) = x − 3 and g\left(x\right)=\frac{x+7}{2} g ( x ) = x + 7 2 , find [g∘f](x). Group of answer choices \fra

pychu [463]

Answer:

$\textbf{$g(f(x)) = \frac{2x + 1}{2}$ }\\$

Step-by-step explanation:

$$ f(x) = x - 3 $$$$ g(x) = x + \frac{7}{2} $$\textup{To compute g(f(x))}$ \implies g(f(x)) = g(x - 3) $\\\textup{i.e., to substitute $x - 3$ instead of x in g(x)}\\$ \therefore g(x - 3) = x - 3 + \frac{7}{2} $ \\\textup{Simplifying this we get:}\\\textbf{$$g(f(x)) = \frac{2x + 1}{2}$$}$