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ololo11 [35]
3 years ago
5

Simplify the following expression: 5(2x-4)-4(2-5x)

Mathematics
1 answer:
USPshnik [31]3 years ago
8 0

Answer:

30x - 28

Step-by-step explanation:

distribute

5(2x) - 5(4) -4(2) - 4(-5x)

10x - 20 - 8 + 20x

30x - 28

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Whats the answer for 2x-3=-x+3? I also need to see the steps because Im lost and I dont understand how to get the answer.
zalisa [80]

Answer:

Solving for 2x - 3 = -x + 3

Standard form:

3x − 6 = 0

Factorization:

3(x − 2) = 0

Solutions:

x = 6      

3

= 2

Step-by-step explanation: Think my Answer is Wrong or Right? Let me know!

7 0
3 years ago
Read 2 more answers
Slope of a line perpendicular to 5x -9y = 1
romanna [79]

The perpendicular line would have a slope of 1/3.

Perpendicular lines have opposite and reciprocal slopes. So first we have to find the slope of the original line. We can do this by solving the equation for y.

5x - 9y = 1

-9y = -5x + 1

y = 5/9x - 1/9

To do the opposite, take the original slope (5/9) and change the sign (-5/9).

To do the reciprocal, take the slope we changed (-5/9) and flip it as a fraction (-9/5).

This gives us a new slope of

7 0
3 years ago
Deon bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $250 less than the desktop. He pai
zysi [14]

Answer:

300

Step-by-step explanation:

Let x = cost of desktop computer; then x - 250 = cost of laptop computer

converting % to decimals, 9% = 0.09 and 6% = 0.06

Then, 0.09x + (x - 250)0.06 = $300

0.09x + 0.06x - 15 = $300

0.15x = $315

x = $2100

then x - 250 = $1850

Proof: $2100•0.09 + 1850•0.06 = $189 + $111 = $300

7 0
3 years ago
In a function, an input can have more than one output. True Or False ??
Fudgin [204]
False. For every x in the function's domain, f(x) describes the one single output. 
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3 years ago
The Fibonacci sequence is perhaps best known from its appearance in the novel and movie "The Da Vinci Code." What are some of th
natita [175]

Answer:

Step-by-step explanation:

We observe that many of the natural things follow the Fibonacci sequence. It appears in biological settings such as branching in trees, phyllotaxis (the arrangement of leaves on a stem), the fruit sprouts of a pineapple, the flowering of an artichoke, an uncurling fern and the arrangement of a pine cone's bracts etc.

The divine proportion—which is sometimes represented by the Greek letter φ, generally written in English as phi and pronounced “fie”—is one of nature’s own mysteries, a mystery that was fully unraveled only 10 years ago. The quest to uncover the φ Code, as I’ll call it, provides a story with almost as many surprising turns, puzzles, and false leads as The Da Vinci Code.

The decryption process follows a reverse process of Encryption. Recipient extracted each symbol from the received text file and mapped to find its hexadecimal value. Obtained value is converted into a decimal value to find out the plain text using the key. Without knowledge of the key an unknown person cannot understand the existence of any secret message.

6 0
3 years ago
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