Given f(x)=2x2+3x and g(x)=5x2−2x−6. What is (f+g)(x) ?

Mathematics

1 answer:

forsale [732]3 years ago

4 0

7x^2 + x -6

You just have to add the same terms x squared + x squared and so on

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Write two odd numbers and two even numbers explain how you know which numbers are even and which are odd

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Answer: 208.

Step-by-step explanation:

The formula to find the minimum sample size is given by :-

$n= (\dfrac{z^*\times \sigma}{E})^2$ (1)

, where z* = critical z-value (two tailed).

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As per given , we have

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$n=(14.39)^2$

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If f(x) = 0.8(2 – x), what is the value of f(–2)?

Sergio039 [100]

With functions, you take the number that is in the ( ), so we have f(-2), and take the fomula f(x) = 0.8(2 – x) and everywhere you see an 'x' replace it with the -2 f(–2)=0.8(2 – (-2))

We will have to work with the expression of 0.8(2-(-2) When you want to evaluate these types of expressions, you want to use the Order of Operations: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. First we have to evaluate the parentheses. What is 2-(-2)
its 4.

ok now you got 0.8 (4)

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