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alexgriva [62]
3 years ago
8

Pls help me. This is a geo quiz and I don’t have a clue what I am doing.

Mathematics
1 answer:
Kruka [31]3 years ago
4 0
3x + 5 + 4x =180
7x + 5 = 180
7x = 175
x = 25


3(25) + 5
75 + 5
80
KL = 80
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Please help me with this problem. I have tried many times and have gotten it wrong. I need help especially on the last part. Can
Arlecino [84]

1) The domain is all the possible x values in the function so it would be [-4,4]

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3)The function is positive/Negative is asking for what x values make the y values positive aka interval notation. The function is positive if x = (0, 2) because 0 and 2 aren't included you use parentheses () instead of brackets []  

The function is negative if x [-4, -2), (-2,0), (2,4]

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3 years ago
Find the value of x that makes the equation true. x + 4 = 12
kirill115 [55]

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7 0
3 years ago
Newton’s law of cooling states that dx/dt= −k(x − A) where x is the temperature, t is time, A is the ambient temperature, and k
Vadim26 [7]

Answer:

(a) The solution to the differential equation is x = A_0Coswt + Ce^(-kx)

(b) The initial condition t > 0 will not make much of a difference.

Step-by-step explanation:

Given the differential equation

dx/dt= −k(x − A); t > 0, A = A_0Coswt

(a) To solve the differential equation, first separate the variables.

dx/(x - A) = -kdt

Integrating both sides, we have

ln(x - A) = -kt + c

x - A = Ce^(-kt) (Where C = ce^(-kt))

x = A + Ce^(-kx)

Now, we put A = A_0Coswt

x = A_0Coswt + Ce^(-kx) (Where C is constant.)

And we have the solution.

(b) Since temperature t ≠ 0, the initial condition t > 0 will not make much of a difference because, Cos(wt) = Cos(-wt).

It is not any different from when t < 0.

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2 years ago
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Answer:

the answer will be  0.462

Step-by-step explanation:

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2 years ago
28 percent of 63 is what
baherus [9]
The answer is 17.64    

4 0
3 years ago
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