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zzz [600]
3 years ago
9

Simplify (6x^-2)^2(0.5x)^4 show work please

Mathematics
2 answers:
tester [92]3 years ago
4 0
(6x^-2)^2(0.5x)^4 = (6^2)(x^-2(2))(1/2)^4(x^4) = 36x^-4(1/16x^4) = (36/16)x^(-4+4) = 9/4
Darina [25.2K]3 years ago
3 0

Answer:

(6x^{-2})^2(0.5x)^4=\frac{9}{4}

Step-by-step explanation:

The given equation is:

(6x^{-2})^2(0.5x)^4

Simplifying the above given equation, we get

=(36x^{-4})(\frac{1}{2}x)^4

=36x^{-4}(\frac{1}{16})x^4

=\frac{36}{16}x^{-4+4}

=\frac{36}{16}

=\frac{9}{4}

Thus, (6x^{-2})^2(0.5x)^4=\frac{9}{4}

which is the requires simplified form.

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Strontium-90 has a half-life of 28.8 years. If you start with a 300-gram sample of strontium-90,
Kazeer [188]

Answer:  2.66 × 10⁻¹³

<u>Step-by-step explanation:</u>

First, use the decay formula   A=A_oe^{kt}   where

  • A is the final amount (amount left)
  • A₀ is the initial amount (amount you started with)
  • k is the rate of decay (you need to solve for this)
  • t is the time

Given:

  • A = 1/2(300) = 150
  • A₀ = 300
  • k = unknown
  • t = 28.8

150=300e^{28.8k}\\\\0.5=e^{28.8k}\\\\ln(0.5)=ln(e^{28.8k})\\\\ln(0.5)=28.8k\\\\\\\dfrac{ln(0.5)}{28.8}=k\\\\\\\large\boxed{-0.0240676=k}\\

Next, input the k-value and the new t-value to solve for A.

  • A = unknown
  • A₀ = 300
  • k = -0.0240676
  • t = 1440

A=300e^{1440(-.0240676)}\\\\\large\boxed{A=2.66\times 10^{-13}}\\

5 0
4 years ago
I need help!! thnaks
liraira [26]

Answer:

7a + 2b

Step-by-step explanation:

Given

4a + 3b + 3a - b ← collect like terms

4a + 3a + 3b - b

= 7a + 2b

3 0
3 years ago
Which value of HNK are used to write the function f(x) = x2 + 12x + 6 in vertex form?
anygoal [31]

Answer:

( − 6 , − 30 )

Step-by-step explanation:

Rewrite in vertex form and use this form to find the vertex  ( h , k ) .

6 0
3 years ago
Please help, will give brainliest! :)
Nonamiya [84]

Answer:

the answer is 2>am sorry if wrong

6 0
2 years ago
Find the value of X, please explain!
Monica [59]
All four angles are exterior angles of the quadrilateral.

We know that the sum of exterior angles of any polygon is 360 &deg; .

So we can add together the four angles and solve for x:
(x+16)+(3x-1)+6x+5x = 360
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15x=345
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4 0
3 years ago
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