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Sedaia [141]
3 years ago
10

Rewrite the expression in the form 4^n4 n 4, start superscript, n, end superscript. (4^{6})(4^{-8})=(4 6 )(4 −8 )=(, 4, start su

perscript, 6, end superscript, ), (, 4, start superscript, minus, 8, end superscript, ), equals
Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0

Answer:

4^{-2}

Step-by-step explanation:

Given the expression:  (4^{6})(4^{-8})

The two terms have the same base 4. Therefore, we can apply the addition law of indices to simplify.

Addition Law of Indices: a^x \cdot a^y=a^{x+y}

Therefore:

(4^{6})(4^{-8})\\=4^{6+(-8)}\\=4^{6-8}\\=4^{-2}

Therefore:

(4^{6})(4^{-8})=4^{-2} in the form 4^n

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3 years ago
Whats the answer for taking its square root?<img src="https://tex.z-dn.net/?f=y%5E%7B2%7D%20%3D%2068" id="TexFormula1" title="y^
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Answer:

y=\pm 2\sqrt{17}

Step-by-step explanation:

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4 0
1 year ago
Solve y'' + 10y' + 25y = 0, y(0) = -2, y'(0) = 11 y(t) = Preview
svetlana [45]

Answer:  The required solution is

y=(-2+t)e^{-5t}.

Step-by-step explanation:   We are given to solve the following differential equation :

y^{\prime\prime}+10y^\prime+25y=0,~~~~~~~y(0)=-2,~~y^\prime(0)=11~~~~~~~~~~~~~~~~~~~~~~~~(i)

Let us consider that

y=e^{mt} be an auxiliary solution of equation (i).

Then, we have

y^prime=me^{mt},~~~~~y^{\prime\prime}=m^2e^{mt}.

Substituting these values in equation (i), we get

m^2e^{mt}+10me^{mt}+25e^{mt}=0\\\\\Rightarrow (m^2+10y+25)e^{mt}=0\\\\\Rightarrow m^2+10m+25=0~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }e^{mt}\neq0]\\\\\Rightarrow m^2+2\times m\times5+5^2=0\\\\\Rightarrow (m+5)^2=0\\\\\Rightarrow m=-5,-5.

So, the general solution of the given equation is

y(t)=(A+Bt)e^{-5t}.

Differentiating with respect to t, we get

y^\prime(t)=-5e^{-5t}(A+Bt)+Be^{-5t}.

According to the given conditions, we have

y(0)=-2\\\\\Rightarrow A=-2

and

y^\prime(0)=11\\\\\Rightarrow -5(A+B\times0)+B=11\\\\\Rightarrow -5A+B=11\\\\\Rightarrow (-5)\times(-2)+B=11\\\\\Rightarrow 10+B=11\\\\\Rightarrow B=11-10\\\\\Rightarrow B=1.

Thus, the required solution is

y(t)=(-2+1\times t)e^{-5t}\\\\\Rightarrow y(t)=(-2+t)e^{-5t}.

6 0
3 years ago
The length of ribbons found at a seamstress are listed.
PIT_PIT [208]

Answer: B

Step-by-step explanation:

5 0
1 year ago
Read 2 more answers
Why is the answer to 12x12 the same as 6x24?
allochka39001 [22]
Both sets of numbers have the same factors:

12 × 12:

= (2× 2× 3) × (2 × 2 × 3)

= 2^4 × 3^2

6 × 24

= (2 × 3) × (2 ×2 × 2 × 3)

= 2^4 × 3^2


4 0
3 years ago
Read 2 more answers
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