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3 years ago

What is the answer to this 3/4 x -9=27

Mathematics

1 answer:

Lady bird [3.3K]3 years ago

5 0

I wrote my decision on a piece of paper.

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Condense the expression into a<br> single logarithm and simplify.<br> log26 - log24

podryga [215]

Step-by-step explanation:

this is solved like this

$log_{3}(6) \: - log_{3}(4) \\ = log_{3}( \frac{6}{4} ) \\ = log_{3}( \frac{3}{2} ) \\ = log_{3}(1.5) \\$

7 0

3 years ago

c2*sin(wt)+c1*cos(wt)= A*Sin(wt+phi), where c2=Acos(Phi) and c1=Asin(Phi). They ask me to find the amplitude of the function 2 s

Iteru [2.4K]

The amplitude of $A\sin(\omega t+\phi)$ is the absolute value of $A$ . So first you need to condense the given function into one sine expression.

Recall that

$A\sin(\omega t+\phi)=A\sin(\omega t)\cos\phi+A\cos(\omega t)\sin\phi$

so you need to choose $\phi$ and $\omega$ accordingly.

If we line up the terms of the given function with the expanded one above, we should have

$2\sin(4\pi t)+5\cos(4\pi t)\implies\begin{cases}A\cos\phi=2\\A\sin\phi=5\\\omega=4\pi\end{cases}$

Now, using the Pythagorean identity,

$(A\sin\phi)^2+(A\cos\phi)^2=2^2+5^2\implies A^2=29\implies A=\pm\sqrt{29}$

so the amplitude is √29.

Just for completeness, we also get

$\tan\phi=\dfrac{\sin\phi}{\cos\phi}=\dfrac52\implies\phi=\tan^{-1}\left(\dfrac52\right)+n\pi$

where $n$ is any integer.

7 0

3 years ago

What's Ta

tia_tia [17]

Answer:

A.) bus only = 23

B.) LRT only = 34

C.) Jeep only = 9

D.) 5

Step-by-step explanation:

Let :

B = bus ; J = Jeep ; L = LRT

KINDLY CHECK ATTACHED PICTURE FOR DETAILED EXPLANATION

7 0

4 years ago

What is the value of the expression 2 to the fourth power + 3 to the second power

vampirchik [111]

The answer is 25.

2^4 + 3^5 = 25.

4 0

3 years ago

Read 2 more answers

WILL MARK AS BRIANLIEST AND 30 POINTS<br> can some one explain this to me 200(2)^x >500x+400

marusya05 [52]

You find the roots.
Your welcome.

8 0

3 years ago