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earnstyle [38]
3 years ago
11

How do you solve 2x-3(2x-3)=45

Mathematics
1 answer:
34kurt3 years ago
7 0

Answer:

x = -9

Step-by-step explanation:

2x - 3(2x - 3) = 45

2x - 6x + 9 = 45

-4x + 9 = 45

-4x + 9 - 9 = 45 - 9

-4x = 36

-4x/-4 = 36/-4

x = -9

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5. Find the value of x that makes BC || DE.
s344n2d4d5 [400]

Answer:

x = -7

Step-by-step explanation:

To find the value of x, you need to set up a proportion:

\frac{x-2}{15} = \frac{x-1}{18}

Then cross multiply:

15x - 15 = 18x + 36

Then subtract 15x from both sides:

-15 = 3x + 36

Subtract 36 from both sides:

-51 = 3x

Finally, divide both sides by 3:

x = -7

8 0
3 years ago
Which equation shows that the Pythagorean identity is true for 0 = 27? Select
oksano4ka [1.4K]

9514 1404 393

Answer:

  B. 0^2 +1^2 = 1

Step-by-step explanation:

For θ = 2π, the trig identity is ...

  sin(2π)² +cos(2π)² = 1

  0² +1² = 1

3 0
3 years ago
The game. Their scores are shoun below.
Harrizon [31]

Answer:

Barb is correct she won by 10 points

Darius's=480

Barb=490

5 0
3 years ago
Describe what a graph of xs 1 would look like. (Be sure to include whether dot is open or closed and state
insens350 [35]

Answer:

The graph would be a line starting at one and moving to the left infinitely. The dot would be closed.

6 0
3 years ago
I need help.. 
Debora [2.8K]
This is exactly like the one with the 'n's that you posted yesterday.
I guess you didn't get enough help on that one to understand it.

<span><u>7k/8 - 3/4 - 5k/16 = 3/8</u>

3/4 is the same as 6/8.
Add it to each side of the equation:

7k/8         - 5k/16 = 9/8

Multiply each side by 16 :

14k - 5k = 18

Add up the 'k's on the left side:

9k = 18

From this point, you can proceed directly to the numerical value of 'k'
if you need it.<u />

In your question, you said you need help, and I showed you how to
strip the problem down so that the only thing left is ' k = something '.
Giving you the answer is no help.  Nobody actually needs the answer.
</span>


8 0
3 years ago
Read 2 more answers
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