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3 years ago

What is the value of the expression 3^−4?

Mathematics

2 answers:

Wewaii [24]3 years ago

7 0

$3^{-4}= \cfrac{1}{3^4} =\cfrac{1}{81}$

hjlf3 years ago

4 0

Answer:

Answer is $\frac{1}{81}$

Step-by-step explanation:

Here we can apply the property of exponents with negative exponents

in order to make exponent positive we can take the term in denominator which makes the expression $\frac{1}{3^4}$ and $3^4 means$ 81

therefore answer is $\frac{1}{81}$

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A serving of ice cream contains 144 calories of fat that is 20% of the calories how many total calories are in a serving of ice

Karo-lina-s [1.5K]

Answer: 2880

Step-by-step explanation: 144*20=2880 calories.

7 0

3 years ago

Factor mn - 4m - 5n + 20

anastassius [24]

Mn - 4m - 5n + 20

In this, mn and -4m have a common factor; m. So we can take that out to make it:

m(n-4) -5n + 20

Now, -5n + 20 also has a common factor which is 5, because 20/5 gives you 4, and 5/5 equals 1. So we can talk out that -5 (it doesn't need to be negative, but negatives on variable, no gusta). So you'd get

m(n-4)-5(n-4) OR m(n-4)+5(-n+4)

4 0

3 years ago

Read 2 more answers

? ÷ 4 = 9<br><br>please help me

kkurt [141]

Answer:

Your answer would be 36

Step-by-step explanation:

You can figure this out by multiplying B by C to get A or

4 x 9 = 36

Then you can check by going

36 ÷ 4 = 9

9 = 9

This is the right answer

5 0

3 years ago

Read 2 more answers

The figure is a regular polygon, solve for x.<br> (7x +31)

Alika [10]

Answer:

7 x + 3 +24

Step-by-step explanation:

The answer is 7 x + 3 =24 because its a problem solving

6 0

1 year ago

Exponential form of logx=3

muminat

Answer:

$10^3 = x$

Step-by-step explanation:

$\log_b x = y \Leftrightarrow b^y = x$

A logarithm is an exponent. For example, the log base 10 of 100 is the exponent you need to raise the base, 10, to get 100. It happens to be 2, so

$\log_{10} 100 = 2$ can be written as $10^2 = 100$

When you change log form to exponential form, keep these things in mind: The base of the log is also the base of the exponential form. The number that equals the log is the exponent. The number you take the log of is equal to the base raised to the exponent.

Now let's look at your problem.

$\log x = 3$

Since no base is shown, the base is 10.

$\log_{10} x = 3$

The base is 10. The exponent is 3. The base raised to the exponent equals x.

$\log_{10} x = 3 \Leftrightarrow 10^3 = x$

6 0

3 years ago