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]
3 years ago
15

How do I solve these problems?

Mathematics
1 answer:
lesya [120]3 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
What measurement is equal to 6 kg
kompoz [17]

Answer:

13.228 pounds

Step-by-step explanation:

Formula:

for an approximate result, multiply the mass value by 2.205

6 0
3 years ago
 Hester sells televisions. She earns a fixed amount for each television and an additional $ 15 if the buyer gets an extended war
tiny-mole [99]

Answer:

y =mx +bx

Where y is the total amount earned, m the amount for each extended warranty and b the fixed cost and x the total amount of TVs

For this case the value of x = 16 since we have 16 Tvs with extended warranties and we can do this:

1200 = 15*16 +16b

and solving for b we got:

b= \frac{1200-15*16}{16}= 60

And then we can conclude that she earns 60 for each TV

Step-by-step explanation:

For this case we can set a linear model like this:

y =mx +bx

Where y is the total amount earned, m the amount for each extended warranty and b the fixed cost and x the total amount of TVs

For this case the value of x = 16 since we have 16 Tvs with extended warranties and we can do this:

1200 = 15*16 +16b

and solving for b we got:

b= \frac{1200-15*16}{16}= 60

And then we can conclude that she earns 60 for each TV

8 0
3 years ago
Compared to the basic savings account
kolbaska11 [484]
I have a savings accout wit four dollars in it

6 0
3 years ago
PLS HELP 10 brain list
loris [4]

Answer:

y:))))))))))))))))))))

6 0
3 years ago
Is this statement true or false? You calculate a finance charge by subtracting the cost of the purchase from the total payment,​
zalisa [80]

Answer:

True

Step-by-step explanation:

Brainliest?

7 0
3 years ago
Read 2 more answers
Other questions:
  • While shopping online, Ji Hun find a square rug with an area of
    10·1 answer
  • Simplify: 9^-3<br><br><br> Please help!
    13·1 answer
  • it takes 21 minutes for 5 people to paint 7 walls. how many minutes does it take 3 people to paint 10 walls
    12·1 answer
  • twelve decreased by twice a number is the same as 8 times the sum of the number plus 4. What is the number
    6·1 answer
  • Evaluate the function for x = -4n.
    6·2 answers
  • 3 Valley Video charges a $15 annual
    5·1 answer
  • Can someone please answer quickly &lt;3
    10·1 answer
  • What is 0.0000007 in standard form
    10·2 answers
  • Solve the system of equations
    6·2 answers
  • Explain how science is a system
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!