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
malfutka [58]
3 years ago
5

Use properties of logarithms to expand the logarithmic expression as much as possible. where​ possible, evaluate logarithmic exp

ressions without using a calculator.
Mathematics
1 answer:
Grace [21]3 years ago
8 0
<span>Answer: Use properties of logarithm to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using calculator. log4(4/x) = log4(4) - log4(x) = 1 - log4(x) ------------------------------------------------------ Evaluate the expression without using a calculator. log7 1/root:7 log7(1/sqrt(7)) = log7(1) - log7(sqrt(7)) = 0 -(1/2)log7(7) = 0-1/2 = -1/2</span>
You might be interested in
I need help plz no links
Nastasia [14]

Answer:

6

Step-by-step explanation:

From the pythagorean theorem the square lenght of hypotenuse is equal to sum of square lenght of base and side

(6.5)^2 = x^2 + (2.5)

42.25 = x^2 + 6.25 subtract 6.25 from both sides

36 = x^2 and x = 6

4 0
3 years ago
A company surveyed 140 people and found that 35 of them went to the library at least once per week. If the town these people liv
Advocard [28]

Answer:

525

Step-by-step explanation:

Set up a ratio 35/140=?/2100. Solve this to get the answer.

5 0
3 years ago
A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that
Delvig [45]

Answer: The size of sample of 193 is needed.

Step-by-step explanation:

Since we have given that

Margin of error = 6%

At 90% confidence level, z = 1.645

Let p = 0.5

and q = 0.5

( because it is the most conservative estimation).

So, using formula, we get :

e=z\times \sqrt{\dfrac{p(1-p)}{n}}\\\\0.06= 1.645\times \sqrt{\dfrac{0.5\times 0.5}{n}}\\\\\dfrac{0.06}{1.645}=\sqrt{\dfrac{0.25}{n}}\\\\(0.036)^2=\dfrac{0.25}{n}\\\\n=\dfrac{0.25}{0.036^2}\\\\n=192.9\\\\n=193

Hence, the size of sample of 193 is needed.

8 0
3 years ago
What is 2 6/7 times 1 1/3
worty [1.4K]

The answer is 3.80952380952

3 0
3 years ago
Read 2 more answers
(Question 1) Which mathematical property is shown by the statement?
kenny6666 [7]

Answer:

1. symmetric property

2. associative property of multiplication

3. The set is closed under addition and not closed under subtraction

Step-by-step explanation:

5 0
4 years ago
Other questions:
  • Write the tangent ratios for P and Q. The figure is not drawn to scale.
    6·2 answers
  • How do I solve 42÷227
    10·2 answers
  • If AB = 33 and BC = 56, then AC =
    12·1 answer
  • 2. Shirley ran 30 minutes per day for
    14·1 answer
  • Can someone help me with this please?
    15·1 answer
  • Simplify radical 8
    14·1 answer
  • A washer and dryer cost $906 combined. The washer cost $56 more then the dryer. What is the cost of the dryer ?
    12·2 answers
  • Alright here is a repost
    5·2 answers
  • Principle = 30,000<br>Time = 4 years<br>Rate = 30<br>Then find the simple interest ?​
    7·2 answers
  • Chris has 18 marbles and Kevin has 15 marbles. Chris gave half of his marbles to Kevin.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!