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svlad2 [7]
3 years ago
13

What is 3x + 9? (Ignore this part, says the question needs to be more than 20 characters)

Mathematics
2 answers:
Debora [2.8K]3 years ago
8 0

Answer:

i think its 12x idk

slavikrds [6]3 years ago
8 0

Answer:

3x+9=27  also x=6

Step-by-step explanation:

Subtract 9 9 from both sides of the equation. Subtract 9 9 from 27 27 . Divide each term by 3 and simplify. Divide each term in 3x=18 3 x = 18 by 3 3

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Monster wants to change the shape of its can to the shape of a Red Bull can. If both cans can still hold 12 oz. And you want the
masha68 [24]
Hello,

Using V = (pi)(r)^2(h) :
V = 12
r = ?
h = 8
12 = (pi)(r)^2(8)
12/(8pi) = r^2
sqrt(12/8pi) = sqrt(r^2)
r = .69 in

Good luck to you!
3 0
2 years ago
Hey, just trying finish up some math before school ends. What's the answer to 3n+2(-2n-1) ? Thanks!
Ksju [112]

Answer:

-n - 2

Step-by-step explanation:

3n+2(-2n-1)

= 3n -4n -2

= -n - 2

3 0
3 years ago
Given that the value of x is between 0 and 360 degrees (0 and 360
Brums [2.3K]

Answer:

  • 150° and 210°
  • 0

Step-by-step explanation:

It is convenient to memorize the trig functions of the "special angles" of 30°, 45°, 60°, as well as the way the signs of trig functions change in the different quadrants. Realizing that the (x, y) coordinates on the unit circle correspond to (cos(θ), sin(θ)) can make it somewhat easier.

__

<h3>20.</h3>

You have memorized that cos(x) = (√3)/2 is true for x = 30°. That is the reference angle for the 2nd-quadrant angle 180° -30° = 150°, and for the 3rd-quadrant angle 180° +30° = 210°.

Cos(x) is negative in the 2nd and 3rd quadrants, so the angles you're looking for are

 150° and 210°

__

<h3>Bonus</h3>

  You have memorized that sin(π/4) = √2/2, and that cos(3π/4) = -√2/2. The sum of these values is ...

  √2/2 + (-√2/2) = 0

_____

<em>Additional comments</em>

Your calculator can help you with both of these problems.

The coordinates given on the attached unit circle chart are (cos(θ), sin(θ)).

6 0
2 years ago
Help! this is in algebra 1
Scrat [10]

Answer: I have the pictures attached


Step-by-step explanation:

In order to graph this, we have to get it into this equation: y = mx + b, where m = slope and b = y intercept.

y = 3/2x - 4 is already in this form.

2y + 4 = 2 + 3x is not, so we have to isolate y

2y + 4 - 4 = 2 + 3x - 4

2y = -2 + 3x

2y/2 = -2/2 + 3x/2

y = -1 + 3/2x

y = 3/2x - 1

Okay, now graph it knowing your y intercepts and your slopes.

7 0
3 years ago
Carlos finds the absolute value of -5.3,and then finds the oppsite of his answer.Whose final value is greater?Explain
Mrrafil [7]

The final value, 5.3, is greater in the value of the answer.

5 0
3 years ago
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