1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Wittaler [7]
4 years ago
6

Use the inverse properties of logarithms to simplify the expression. 10^ log 21

Mathematics
1 answer:
madreJ [45]4 years ago
5 0

Answer:

21

Step-by-step explanation:

Rule of logs:

b^{\log_b x} = x

Your problem:

10^{\log_{10} 21} = 21

You might be interested in
Adam eats 20 % of a pizza, Bethany eats another 1/3 of the pizza, and Charlie eats the remaining 14 slices. How many slices tota
Firdavs [7]

The pizza originally have 30 slices.

What is linear equation?

An equation in which the highest power of the variable is one is known as linear equation.

We will find number of pizza slices as shown below:

Let pizza originally have x slices.

Adam eats 20% of a pizza

= 0.2x

Bethany eats 1/3 of pizza

=1/3(x)

Charlie eats the remaining 14 slices

0.2x+1/3(x)+14=x

14 = x - 0.2x - 1/3(x)

14 = x - x/5 - x/3

14 = (15x - 3x - 5x)/15

14*15 = 7x

By dividing both sides by 7, we get

30 = x

x = 30

Hence, the pizza originally have 30 slices.

Learn more about linear equations here:

brainly.com/question/14323743

#SPJ1

3 0
2 years ago
A rectangle has an area of 24x + 42. Which answers below are possible dimensions of the rectangle?
tangare [24]
The answers are A, C, and D. B is not a correct answer because 4 times 11 is not 42
4 0
3 years ago
What is the value of k? (6k+10) (4k+5)
Verdich [7]
<span>(6k+10) (4k+5) is not an equation.  Or, did you unintentionally leave off "=0?"
Thus, we cannot find a value for k.

If we set </span><span>(6k+10) (4k+5) = to 0, then the roots would be solutions of 6k+10=0 and 4k+5=0.  They are {-5/3, -5/4}</span>
7 0
3 years ago
What is the best estimate of 49.13 + 0.58?<br><br> A: 80<br> B: 40<br> C: 25<br> D: 50
nirvana33 [79]
I believe the answer is D
7 0
4 years ago
Read 2 more answers
Write the polynomials in standard form:<br><br> (15–7xy^2)–(y^3–y^2x–15)
stepan [7]
<h3>Answer:</h3>

-y³ -6y²x +30

<h3>Step-by-step explanation:</h3>

When parentheses are eliminated and the y variable placed first in each term, the expression simplifies to ...

... 15 -7y²x -y³ +y²x +15

Arranging like terms together, we have ...

... -y³ +y²x(-7 +1) +(15 +15)

... -y³ -6y²x +30

_____

The two different 3rd-degree terms can be expressed in either order. I have chosen to list the term with the largest exponent first. The expression could also be written with the same-degree terms in "lexicographical order", meaning the expression would be written ...

... -6xy² -y³ +30

7 0
4 years ago
Other questions:
  • 4 friends share 3 sheets of paper equally. What fraction of a sheet of paper does each friend get?
    13·2 answers
  • I NEED HELP QUICK!!!
    11·1 answer
  • padma works as a babysitter. she charges a $10 fee to cover her transportation costs plus $13 fee to watch for one child. write
    8·1 answer
  • I need to know the answer to this?
    13·1 answer
  • What are appropriate ways of write "6 times x"?
    7·2 answers
  • Operation research is the application of which methods to arrive at the optimal solution to the problems?
    12·1 answer
  • To determine what effect the salespeople had on purchases, a department store polled 700 shoppers as to whether or not they had
    15·1 answer
  • Which sequences are geometric?
    10·1 answer
  • A florist has to pay $7.50 each time a customer chooses a competitor for the delivery of flowers. Which expression shows the amo
    13·2 answers
  • Please help me now
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!