First, add 84 to both sides, to isolate the exponential function.
Then, take the logarithm of both sides:
(2x+3)*log 5 = log 84
Solving for 2x+3, we get log 84 - log 5, and so
2x = -3 + log 84 - log 5. Dividing both sides by -3, we obtain the final answer:
-3 + log 84 - log 5
x = -----------------------------
2
Answer:
- The product of an even number and an oven number
- The product of an odd number and an odd number
- The product of a perfect cube and a perfect cube
Step-by-step explanation:
The product of two even numbers will have at least two factors of 2, so will be even: <em>even numbers are closed under multiplication</em>.
The product of two odd numbers will be an even number plus 1, so will be odd: <em>odd numbers are closed under multiplication</em>.
The product of two cubes will be the cube of the product of their cube roots: <em>cubes are closed under multiplication</em>.
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The product of two negative numbers will be positive, so <em>the set of negative numbers is </em><em><u>not closed</u></em><em> under multiplication</em>.
Answer:
6>d
Step-by-step explanation:
6d-3> 8d-12-3
6d-3>8d-15/ +15
6d+12>8d/-6d
12>2d/÷2
6>d
Answer:
Maby b
Step-by-step explanation:
sorry if wrong
To solve the question, the both equations should have a positive value and a negative value with same number. Then one variable can be eliminated.
To eliminate X term first, we should multiply the first equation by 2 and second one by 3.
Then,
6X - 12Y = -30
-6X + 15Y = 70
Or
To eliminate Y term first, we should multiply the first equation by 5 and second one by 6.
Then,
15X - 30Y = -75
-12X + 30Y = 84
According to the choices given 'A' is the correct answer.