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3 years ago

7

8x+12-8x+15+15x-22-x

1 answer:

mixas84 [53]3 years ago

5 0

The answer would be 14x+5 I’m pretty sure

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Which choice is a graph of the solution set for 12 - X < 8?<br> Pleaseeeee helpppppp NUMBER 14

yarga [219]

Answer:

B

Hope this helps!

explanation:

we solve the inequality and to do that we must first subtract 12 from both sides, which gets us -x<-4, then we divide both sides by -1, which gives us x>4, since we have to flip the sign when we divide by a negative. when we graph this, there will be a circle around 4 and the arrow pointing to the right, since it's greater than.

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.

7 0

3 years ago

Please answer if it’s A B C Or D

PolarNik [594]

Answer:

I am sure it is D

8 0

3 years ago

Read 2 more answers

Plz answer it need it very fast!!! <br>Will give brainiest

Taya2010 [7]

60
Because If you go by there score on paper 5 and follow it up to the line of best fit and then go across to the paper 2 in lines up to 60

5 0

3 years ago

Joe is riding his bike home. He begins 10 miles away from his house and is riding home at a speed of 0.25 miles per minute. Whic

meriva

<h2>Hello!</h2>

The answer is:

The correct answer is:

d. $f(m)=10+0.25*m$

<h2>Why?</h2>

From the statement we know that he begins at 10 miles away from his house riding at a speed of 0.25 miles per hour (h)

We have that:

$x_{f}=x_{o}+v*t$

Where,

$x=FinalPosition\\x_{o}=InitialPosition\\v=speed\\t=time$

Now, using the given information we have that=

$x_{f}=x_{o}+v*t$

$x_{f}=10miles+0.25mph*m$

We have that:

$x_{f}=f(m)$

So,

$f(m)=10miles+0.25mph*m$

Hence, we have that the correct answer is:

d. $f(m)=10+0.25*m$

Have a nice day!

7 0

3 years ago