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
Evgesh-ka [11]
2 years ago
15

How do I solve these problems?

Mathematics
1 answer:
lesya [120]2 years ago
5 0

Domain:\\D:x > 0\\\\\ln x=5.6+\ln(7.5)\ \ \ \ |-\ln(7.5)\\\\\ln x-\ln7.5=5.6\ \ \ |Use\ \log x-\log y=\log\dfrac{x}{y}\\\\\ln\dfrac{x}{7.5}=5.6\ \ \ \ |use\ \log_ab=c\iff a^c=b\\\\\dfrac{x}{7.5}=e^{5.6}\ \ \ \ |\cdot7.5\\\\\boxed{x=7.5e^{5.6}}\in D

\log x=5.6-\log7.5\ \ \ \ |+\log7.5\\\\\log x+\log7.5=5.6\ \ \ \ |use\ \log x+\log y=\log (xy)\\\\\log(7.5x)=5.6\ \ \ \ |use\ \log_ab=c\iff a^c=b\\\\7.5x=10^{5.6}\ \ \ \ |:7.5\\\\\boxed{x=\dfrac{10^{5.6}}{7.5}}\in D

You might be interested in
The standard deviation of the data set is 2.3. Compute the variance to the nearest hundredth. 2,2,2,3,5,5,6,7,8
Arada [10]
The standard deviation is the square root of the variance...so that means the variance is the standard deviation squared.

2.3^2 = 5.29 <===
7 0
3 years ago
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER PLS ANSWER THE QUESTION WITH A STEP BY STEP EX
Marina CMI [18]

i think the correct answer is C

5 0
2 years ago
Read 2 more answers
A bag is filled with marbles. You take out and mark 80 marbles. Then you put the marbles back in the bag and mix the marbles. In
noname [10]
About 400 marbles. You simply set up a proportion and solve it as I did in the photo attached.

3 0
2 years ago
Read 2 more answers
MARK AS BRAINLIEST
Arisa [49]

Answer:

The answer to your question is 25%

Step-by-step explanation:

Data

Initial price = $2.00

Final price = $2.50

First we subtract the final price to the inicial price

              increment = 2.50 - 2.00

                                = $0.50    It's the amount that the school increases to the community members

            Now we use a rule of three to find the percent

                 $2.00 ----------------------  100%

                 $0.50  ---------------------    x

x = 0.50 x 100/2 = 50/2 = 25%          

4 0
3 years ago
The width of the box is ⅔
Sati [7]

Answer:

the truth is that I do not understand your way of expressing yourself but you can talk the truth is that I don't understand your way of expressing yourself but you can speak the language with me in Spanish ok

6 0
2 years ago
Other questions:
  • Y − x = 12<br> y + x = -26
    14·1 answer
  • The fastest speed recorded for a cheetah is 70 mph. This is 11 mph less than 3 times the fastest running speed for a man. What i
    13·2 answers
  • Please answer this simple question!!!
    12·1 answer
  • Find the zeroes of the following equation:
    11·1 answer
  • PLZ HELP 30 POINTS!
    10·2 answers
  • Can someone please help me with my homework and explain it to me I will mark as brainlyist
    13·1 answer
  • Question 1 of 10
    12·2 answers
  • If 8x-7y=-8 is a true equation, what would be the value of -8+8-7y
    11·1 answer
  • Is 1/10, 1/4, and 1/8 more or less than 1/2​
    12·1 answer
  • Hello! Please help!! I really need this.​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!