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Vanyuwa [196]
3 years ago
6

Which is the value of this expression when a = 5 and k = negative 2?

Mathematics
1 answer:
LuckyWell [14K]3 years ago
6 0

Answer:

<h2>25/9</h2>

Step-by-step explanation:

hello :

this expression equivalent to : (3/a)^5

because ;3²a^(-2)/3a^(-1)= (3²/3)×(a^(-2)/a^(-1)) = 3a^(-2+1) = 3a^(-1) = 3/a

now : a=5 and k= -2    so :    (3/5)^(-2) = (5/3)² =25/9

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125% is equivalent to what number​
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<em>1.25</em>

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3 years ago
For each correlation coefficient below, calculate what proportion of variance is shared by the two correlated variables:
Viefleur [7K]

Answer:

A. 0.0625

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Step-by-step explanation:

The proportion of variance is shared by the two correlated variables is given as the r².

Therefore,

For A. r = 0.25

Proportion of variance is shared by the two correlated variables = 0.25²

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For B. r = 0.33

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For C. r = 0.90

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= 0.81

For D. r = 0.14

Proportion of variance is shared by the two correlated variables = 0.14²

= 0.0196

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3 years ago
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