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Problem

Solve each equation. $$ 5^{x}=0.2 $$

00:17

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Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7 Problem 8 Problem 9 Problem 10 Problem 11 Problem 12 Problem 13 Problem 14 Problem 15 Problem 16 Problem 17 Problem 18 Problem 19 Problem 20 Problem 21 Problem 22 Problem 23 Problem 24 Problem 25 Problem 26 Problem 27 Problem 28 Problem 29 Problem 30 Problem 31 Problem 32 Problem 33 Problem 34 Problem 35 Problem 36 Problem 37 Problem 38 Problem 39 Problem 40 Problem 41 Problem 42 Problem 43 Problem 44 Problem 45 Problem 46

Problem 22 Easy Difficulty

Solve each equation.
$$
3^{x}=\frac{1}{81}
$$

Answer

Related Courses

Algebra

Beginning and Intermediate Algebra

Chapter 12

Inverse, Exponential, and Logarithmic Functions

Section 2

Exponential Functions

Related Topics

Functions

Exponential and Logarithmic Functions

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00:17

Solve each equation.
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00:51

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00:39

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Video Transcript

so Russia sell for? Well, we know that 81 You can write that as a base of three that is three to the power of four are now looking right. This has a negative exponents. So we have three to hardening before we have about three of acts because you could just break apart before our comparing our powers, we see that X must be equal to make it a four.

We have video lessons for 68.06% of the questions in this textbook

Margaret L. Lial , John Hornsby

Beginning and Intermediate Algebra

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Functions

Exponential and Logarithmic Functions

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Lectures

Video Thumbnail

01:32

Absolute Value - Example 1

In mathematics, the absolute value or modulus |x| of a real number x is its …

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01:11

Absolute Value - Example 2

In mathematics, the absolute value or modulus |x| of a real number x is its …

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00:17

Solve each equation.
$$
3^{-x}=81
$$

00:34

Solve each equation.
$$3^{-x}=81$$

00:51

Solve each equation.
$$
3^{x^{2}-3 x}=81
$$

00:39

Solve each equation.
$$3^{x+2} \cdot 3^{x}=81$$

00:50

Solve each equation.
$$3^{x+2} \cdot 3^{x}=81$$

00:34

solve each equation.
$3^{x+2} \cdot 3^{x}=81$

00:54

Solve each equation.
$$
3^{x^{2}+4 x}=\frac{1}{81}
$$

01:03

Solve each equation. See Example 2 .
$$3^{x^{2}-3 x}=81$$

00:41

Solve each equation.
$$
3^{x}=\frac{1}{27}
$$

00:24

Solve each equation.
$$
3^{x+1}=27
$$

Additional Mathematics Questions

use-the-exponential-key-of-a-calculator-to-find-an-approximation-to-the-nearest-thousandth-05

00:11

Use the exponential key of a calculator to find an approximation to the near…

solve-each-inequality-see-example-3-8-x52-leq-5

01:20

Solve each inequality. See Example 3.
$$
(8 x+5)^{2} \leq-5
$$

solve-each-equation-give-solutions-to-three-decimal-places-see-example-1-9-x213

00:58

Solve each equation. Give solutions to three decimal places. See Example 1.<…

01:19

$$
(3 x+5)^{2} \leq-4
$$

let-fxx24-gx2-x3-and-hxx-5-find-each-value-or-expression-see-examples-6-and-7-14

00:52

Let $f(x)=x^{2}+4, g(x)=2 x+3,$ and $h(x)=x-5 .$ Find each value or expressi…

give-the-domain-and-the-range-of-each-function-see-section-73-fxx2

01:26

Give the domain and the range of each function. See Section 7.3.
$$
f(…

solve-each-problem-see-examples-6-8-a-what-will-be-the-amount-a-in-an-account-with-initial-pr

01:48

Solve each problem. See Examples 6– 8.
(a) What will be the amount $A$ in…

use-the-properties-of-logarithms-to-express-each-logarithm-as-a-sum-or-difference-of-logarithms-or-4

00:12

Use the properties of logarithms to express each logarithm as a sum or diffe…

write-each-logarithmic-statement-in-exponential-form-see-section-123-log-_10-10

00:11

Write each logarithmic statement in exponential form. See Section $12.3 .$

decide-whether-each-graph-is-that-of-a-function-see-section-73

00:58

Decide whether each graph is that of a function. See Section 7.3

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