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harina [27]
3 years ago
8

AB = 5x -9; BC= -2x + 12

Mathematics
1 answer:
BaLLatris [955]3 years ago
3 0

Answer:

X=-3

Step-by-step explanation:

5x - 9

-2x + 12

(+) (-)

7x = -21

X= -3

plz mark ice bear as Brainliest

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-3x+4y=24 in slope form
geniusboy [140]

Answer:

y=3/4x+6

Step-by-step explanation:

Move the 3x to the other side and divide by 4.

7 0
4 years ago
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A buoy floating in the sea is bobbing in simple harmonic motion with period 2 seconds and amplitude 8 in. Its displacement d fro
Mrac [35]

Answer:

The equation of the displacement d as a function of time t is :

d(t)=8sin(\pi t+\pi )

Step-by-step explanation:

Generally , A simple harmonic wave is a sinusoidal function that is it can be expressed in simple sin or cos terms.

Thus,

d(t) = Asin(wt+c)

is the general form of displacement of a SHM.

where,

  • <em>d(t) is the displacement with respect to the mean position at any time t</em>
  • <em>A is amplitude </em>
  • <em>w is the natural frequency of oscillation (rads^{-1})</em>
  • <em>c is the phase angle which indicates the initial position of the object in SHM (rad)</em>

given,

  1. Time period (T) = 2s
  2. A=8
  3. The natural frequency (w) and time period (T) is :

                               w=\frac{2\pi} {T}

∴

w = \frac{2\pi }{2}  = \pi rads^{-1}

∴

the equation :

<em>⇒d(t)=8sin(\pi t+c)    </em>                    ------1

since d=0 when t=o ,

<em>⇒0=8sinc\\c=n\pi                         ------2</em>

where n is an integer ;

<u>⇒since the bouy immediately moves in the negative direction , x must be negative or c must be an odd multiple of \pi.</u>

<em>⇒ d(t) = 8sin(\pi t+(2k+1)\pi )         ------3</em>

where k is also an integer ;

the least value of k=0;

thus ,

the equation is :

d(t)=8sin(\pi t+\pi )

<em></em>

7 0
3 years ago
Find the value of x plz help &lt;3
Ierofanga [76]
61 I believe because you have to subtract 90 ok bye now have a great day!
3 0
3 years ago
Find the value of x in log^x base 9=3÷2​
Luba_88 [7]

Answer:

x = 27.

Step-by-step explanation:

log9 x = 3/2

By the definition of a log:

9^3/2 = x

x =   (√(9)^3)

x = 3^3

x = 27.

4 0
3 years ago
231 m 31 cm -14 m 48cm
frozen [14]
296 cm is your answer Cody. A easier way to do this question with coming on to brainly. Is add all the positive Integers OR Numbers together and then add all the negative numbers together. Then subtract the negative numbers from the positive. Something like this.

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