3 years ago

If the function rule is 5x, what is the value when x = 3?

1 answer:

4 0

The answer is 15.

That's because the function rule is to apply 5 multiplied by whatever x is, and if x is 3, you do 5 multiplied by 3, which is 15.

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3. f(x) =(x-1)(x2+2) then f'() :

AlladinOne [14]

Answer:

$f'(x)=3x^2-2x+2$

Step-by-step explanation:

Assuming that the function is

$f(x)=(x-1)(x^2+2)$

First, we need to remove the parenthesis. Once this is done, we get

$f(x)=x^3-x^2+2x-2$

Now that the parenthesis are gone, we can differentiate each term. To do this, we can use the power rule, which states

$f(x)=x^n\\f'(x)=nx^{n-1}\\$

This gives us

$f'(x)=3x^2-2x+2$

3 0

4 years ago

Number 18 please help

tresset_1 [31]

Answer:

Step-by-step explanation:

First, multiply straight across and put everything together:

$\frac{3a}{b}\cdot \frac{b^2}{12c}=\frac{3ab^2}{12cb}$

Notice we can simplify by cancelling a b and reducing 3/12:

$=\frac{ab}{4c}$

This cannot be simplified further.

7 0

3 years ago

How many sixths are in 4 how many two-thirds are in 2

sveticcg [70]

Answer:

24 sixths in 4 and 3 two-thirds

Step-by-step explanation:

6=24 sixths in 4

6 0

3 years ago

Read 2 more answers

Evaluate 8a-b if a = 10 and b= 6

solniwko [45]

Answer:

Step-by-step explanation:

(8x10) - 6 =

80 - 6 = 74

4 0

2 years ago

X^2+3x+2 x^2+x-6 x^2-x-2

Varvara68 [4.7K]

Answer:

1. (+1)(+2)

2. (−2)(+3)

3. (−2)(+1)

Step-by-step explanation:

3 0

3 years ago