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2 years ago

Which expression results from using the distributive property 5(4x)

Mathematics

2 answers:

mojhsa [17]2 years ago

7 0

Answer:

20*5x

Step-by-step explanation:

multiply outer number by each item in the parenthesis

so 5*4=20 and

5*x=5X

nignag [31]2 years ago

6 0

20x would be ur answer.

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5) Ang Electronics, Inc., has developed a new HD DVD. If the HD DVD is successful, the present value of the payoff (at the time

Radda [10]

Answer:

Step-by-step explanation:

Dvbdssstggbvhhhhgtfggggg

7 0

3 years ago

Find the derivative using the limit process of f (x) = - 10x

zubka84 [21]

Answer:

$\frac{d}{dx} f(x) =-10$

General Formulas and Concepts:

Calculus

Derivative Notation
Definition of a Derivative: $\lim_{h \to 0} \frac{f(x+h)-f(x)}{h}$

Step-by-step explanation:

Step 1: Define

f(x) = -10x

Step 2: Find Derivative

Substitute: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10(x + h)-(-10x)}{h}$
Distribute -10: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10x -10h-(-10x)}{h}$
Distribute -1: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10x -10h+10x}{h}$
Combine like terms: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10h}{h}$
Divide: $\frac{d}{dx} f(x)= \lim_{h \to 0} -10$
Evaluate: $\frac{d}{dx} f(x)=-10$

3 0

3 years ago

I NEED HELP PLEASE! :)

Andrej [43]

Answer:

Perpendicular

Step-by-step explanation:

To tell if the lines are perpendicular/parallel, you must look at the slope, but in this case, you must first get y by itself, like so:

3x + 7y = 15

-3x - 3x

___________

7y = -3x + 15

Divide both sides by 7:

y = $\frac{-3}{7}x + \frac{15}{7}$

Now the other equation:

7x - 3y = 6

-7x -7x

_________

-3y = -7x + 6

Divide both sides by -3:

y = $\frac{7}{3} x - 2$

You can see that the lines are perpendicular because the slopes ( $\frac{-3}{7} x$ and $\frac{7}{3}$ ) are opposite reciprocals.

5 0

4 years ago

Help me please thank you

nordsb [41]

Answer:

Step-by-step explanation:

7 0

3 years ago

Check the month and dollar value that that when placed togther would form a correct ordered pair.

wel

The task consists it form ordered pairs, this is pairs of this form (x,y) where the two numbers are paired because some relation.

In this case the relations is the " in month x it had a profit y"

Then the ordered pairs are: (April, 2000) , (May, 3000), (June, 5000).

If you use the number of the month to identifiy it, then you can write the ordered pairs as:

(4,2000), (5,3000), (6,5000)

Both ways are correct forms of ordered pairs.

8 0

4 years ago

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