The answer is: 45 * 10 ⁻¹¹ .
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Explanation:
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Given: (9 * 10⁻⁵) * (5 *10 ⁻⁶) ; Simplify.
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(9 * 10⁻⁵) * (5 *10⁻⁶) =

9 * 5 * 10⁻⁵ * 10⁻⁶ =

(9 * 5) * 10⁻⁵ * 10⁻⁶

45 * 10⁻⁵ * 10⁻⁶ ;
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Note the following property of exponents:

xᵃ * xᵇ = x⁽ᵃ⁺ᵇ⁾ ;

As such, 10⁻⁵ * 10⁻⁶ = 10⁽⁻⁵ ⁺ ⁻⁶) = 10 ⁻¹¹ ;
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So; 45 * 10⁻⁵ * 10⁻⁶

= 45 * 10⁻¹¹ .
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7 0

3 years ago

Which expression is equivalent to 2(a+3) when a equals 3 2(3) 5(3) 2(3)+3 2(3)+6

sammy [17]

2(3+3) or 2(3)+6, so the answer is the third option. It’s just using the distributive property.

8 0

3 years ago

Read 2 more answers

Find the mean and median of the following data set: -25, 10, 40, -15, 0, 35, 15, -10

emmasim [6.3K]

Answer:

Mean 6.25