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2 years ago

What is the solution of logx 729=3? The answer is 9 (B) on edge.

Mathematics

1 answer:

lana66690 [7]2 years ago

5 0

Answer:

x = 9

Step-by-step explanation:

using the rule of logarithms

$log_{b}$ x = n ⇒ x = $b^{n}$

given

$log_{x}$ 729 = 3 then

729 = x³

note 729 = 9³ , so

9³ = x³ ( equating the bases) , gives

x = 9

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Answer:

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Step-by-step explanation:

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When together, it takes 4 hours to finish a work, so we can write:

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Solving for x, we get the time of Dorsey:

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3 years ago

What is the length of b

oksian1 [2.3K]

Answer:

b = 24

Step-by-step explanation:

Concepts

The Pythagorean Theorem states that the sum of the squares of the two other sides on a right triangle is equal to hypotenuse (longest side) squared. It can be represented by the equation $a^2+b^2=c^2$ . We can also use this formula to solve for the other two legs in the right triangle.

Application

In this case, we're asked to find the length of b in the right triangle, given c as 26 and a as 10. Now, we just apply the formula and solve for b.

Solution

Step 1: Set up equation and simplify.

$10^2+b^2=26^2$
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Step 2: Subtract 100 from both sides.

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Step 3: Take square root of both sides.

$\sqrt{b^2} =\sqrt{576}$
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