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3 years ago

Three times the sum of a number squared and 4

Mathematics

1 answer:

kozerog [31]3 years ago

5 0

Answer:

Step-by-step explanation:

3(N² + 4)

3N² = 12

3N² ÷ 3 = 12 ÷ 3

N² = 4

√N² = √4

N = 2

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8 0

3 years ago

How would i solve this problem using log base 10

Archy [21]

First isolate the power of 10 on the right side by dividing both sides by 5:

$100=5\cdot10^{0.3t}\implies20=10^{0.3t}$

Now you're free to take the logarithm and simplify where you can:

$\log_{10}20=\log_{10}10^{0.3t}=0.3t\log_{10}10=0.3t$

Then solve for $t$ :

$t=\dfrac{\log_{10}20}{0.3}\approx4.34$

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3 years ago

Three times the sum of a number squared and 4​

Three times the sum of a number squared and 4