All categories

3 years ago

PLEASE HELP

Mathematics

1 answer:

Butoxors [25]3 years ago

3 0

Step-by-step explanation:

arithmetic operations in functions are simple : you take both expressions and apply the arithmetic operation on them.

in our case : addition.

f(x) = 4x² + 5x - 3

g(x) = 4x³ - 3x² + 5

(f+g)(x) = (4x² + 5x - 3) + (4x³ - 3x² + 5) =

= 4x² + 5x - 3 + 4x³ - 3x² + 5 =

= 4x³ + x² + 5x + 2

so, B should be the right answer (despite all the typos there).

You might be interested in

(2a^x + b^x)^2 i need help ASAP

Finger [1]

Answer:

4 $a^{2x}$ + 4 $a^{x}$ $b^{x}$ + $b^{2x}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$

Given

(2 $a^{x}$ + $b^{x}$ ) = (2 $a^{x}$ + $b^{x}$ )(2 $a^{x}$ + $b^{x}$ )

Each term in the second factor is multiplied by each term in the first factor, that is

2 $a^{x}$ (2 $a^{x}$ + $b^{x}$ ) + $b^{x}$ (2 $a^{x}$ + $b^{x}$ ) ← distribute both parenthesis

= 4 $a^{2x}$ +2 $a^{x}$ $b^{x}$ + 2 $a^{x}$ $b^{x}$ + $b^{2x}$ ← collect like terms

= 4 $a^{2x}$ + 4 $a^{x}$ $b^{x}$ + $b^{2x}$

6 0

3 years ago

Ena is making trail mix. She buys the items shown in the table. How many more pounds of pretzels than raisins does she buy?

fredd [130]

It seems that you have missed the most important detail for us to answer this question which is the table where we can base the values. I would be very much interested to help of you are going to attach it here. Let me know if you need more help next time. Have a great day!

3 0

3 years ago

Find the sum (5p + 11) + (8p - 4)

vodomira [7]

Answer:

13p + 7

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A car averages 32 miles per gallon of gasoline. How far can this car travel on one fluid ounce of gasoline

aleksandrvk [35]

Given that a car averages 32 miles per gallon of gasoline.

That means in 1 gallon of gasoline, car will travel 32 miles.

Now we have to find the distance travelled by car in one fluid ounce of gasoline.

We know that 1 US liquid gallon = 128 US fluid ounce

So that means car travels 32 miles in 128 fluid ounce of gasoline

So to find the distance travelled by car in one fluid ounce of gasoline, we just need to divide 32 miles by 128

Hence answer will be 32/128 or 0.25 miles.

3 0

4 years ago

Mary has two job offers.

galina1969 [7]

Answer:

8h+100

8.50h+80

Step-by-step explanation:

7 0

3 years ago