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viktelen [127]
3 years ago
12

For what value of a does ( 1/9) ^a+1 •27^2-a ? O-4 O-2 O 2 O 6

Mathematics
1 answer:
astra-53 [7]3 years ago
6 0
<h2>>>Exponent</h2>

__________

\:

( \frac{1}{9} ) {}^{a + 1}  =  {27}^{2 - a}

( {3}^{ - 2} ) {}^{a + 1}  =  ( {3}^{3}  ) {}^{2 - a}

\cancel{ {3}}^{ - 2a - 2}  =   \cancel{{3}}^{6 - 3a}

-2a - 2 = 6 - 3a

-2a + 3a = 6 + 2

a = 8✔

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Stels [109]

Answer:

12 m³

Step-by-step explanation:

4 x 2 x 1.5 = x

4 x 2 = 8

1.5 x 8 = 12

5 0
3 years ago
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if f(x)=2^x -10 and the domain of f(x) is the set of integers from -1 to 3, which values are elements of the range of f (x)? Sel
nikitadnepr [17]
The domain of the function is the range of values of x that can be used to be replaced in the equation for it to become true. We are given that the value of f(x) should range only from -1 to 3. We evaluate each of the choices and see if the values of f(x) will fall within the range.

(a) -12;   f(x) = 2^(-12) - 10 = -9.9999 (NOT AN ANSWER)
(b) -10;   f(x) = 2^(-10) - 10 = -9.999 (NOT AN ANSWER)
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Hence, none of the choices will allow the value of f(x) to fall between -1 and 3. 
5 0
4 years ago
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In a simplified model of a hydrogen atom, the electron moves around the proton nucleus in a circular orbit of radius 0.53 × 10−1
tresset_1 [31]
For the answer to the question above,
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d) period T = 2π / ω = 2πr / v 
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4 years ago
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Mamont248 [21]

Answer: m = 0

Step-by-step explanation:

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m = 0

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3 0
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vlabodo [156]

Answer:

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