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3 years ago

3m 7cm 3cm = how many meters

Mathematics

1 answer:

padilas [110]3 years ago

8 0

3m 7cm 3cm = 13 meters
Hope this helps!

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Whoever answers I’ll mark them brainliest!

Volgvan

Answer:

55.000000000001

Step-by-step explanation:

5 0

3 years ago

Help........ Again and thanks

Hunter-Best [27]

Answer:

x=3, y=1

Step-by-step explanation:

2x+y =7

3x-4y =5

Multiply the first equation by 4 so we can eliminate y

4(2x+y =7)

8x +4y =28

Add this to the second equation

8x +4y =28

3x-4y =5

----------------

11x = 33

Divide by 11

11x/11=33/11

x=3

Now we still need to find y

2x+y=7

2(3)+y =7

6+y=7

Subtract 6 from each side

6-6+y=7-6

y= 1

5 0

3 years ago

Find the general solution of the given higher-order differential equation. d3u dt3 + d2u dt2 − 2u = 0

STALIN [3.7K]

$\dfrac{\mathrm d^3u}{\mathrm dt^3}+\dfrac{\mathrm d^2u}{\mathrm dt^2}-2u=0$

This ODE has characteristic equation

$r^3+r^2-2=(r^3-r)+(r^2+r-2)=r(r^2-1)+(r+2)(r-1)$

$=(r(r+1)+(r+2))(r-1)=(r^2+2r+2)(r-1)=0$

which has roots at $r=1,-1\pm i$ . Then the characteristic solution to the ODE is

$u(t)=C_1e^t+C_2e^{(-1+i)t}+C_3e^{(-1-i)t}$

$\implies\boxed{u(t)=C_1e^t+C_2e^{-t}\cos t+C_3e^{-t}\sin t}$

6 0

4 years ago

Hey yall sorry that im pretty stupid but can you answer this whats 9x = 7 ( x + 2)

Yuliya22 [10]

Answer:

x=7

Step-by-step explanation:

1. Distribute

2. Subtract 7x from both sides of the equation

3. Simplify

4. Divide both sides of the equation by the same term

5. Simplify

Answer: x=7

5 0

3 years ago

Read 2 more answers

Consider the functions f(x)=(4/5)x+6 what are the ranges of the two functions

Anettt [7]

Answer:

I hope ...... hope...... 34/5 and 38/5 ... If it incorrect plz forgive me .... I tried my best ......

7 0

3 years ago