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
Vlad1618 [11]
2 years ago
5

Lg(10x+200)=lg

align="absmiddle" class="latex-formula">
+lg10​
Mathematics
1 answer:
Oksana_A [137]2 years ago
8 0

Answer: x = {-4, 5}

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

log (10x + 200) = log (x²) + log (10)

log (10x + 200) = log (10x²)

     10x + 200 = 10x²

                   0 = 10x² - 10x - 200

                   0 = x² - x - 20

                   0 = (x - 5)(x + 4)

                   0 = x - 5    0 = x + 4

                  x = 5           x = -4

Check for extraneous solutions:

             10x + 200 > 0                  x² > 0

x = 5      10(5) + 200 > 0               (5)² > 0        both are satisfied

x = -4     10(-4) + 200 > 0             (-4)² > 0        both are satisfied

            Both solutions are valid!

 

You might be interested in
Help me with math please, quickly
irga5000 [103]

Answer:

3\neq -3

False

Step-by-step explanation:

y=3x-9\\\\x-\frac{1}{3}y=-3

You substitute y for the second equation.

x-\frac{1}{3} y=-3\\\\x-\frac{1}{3}(3x-9)=-3

Then you have to distribute -\frac{1}{3} .

x-x+3=-3

Combine like terms.

3\neq -3

7 0
2 years ago
Read 2 more answers
two pounds of dried cranberries cost $5.04, 3 pounds of dried cranberries cost $7.56, and 7 pounds of dried cranberries cost $17
yanalaym [24]
5.04 divided by 2 =y
x=number of ponds for any equation you make up
5 0
3 years ago
Find me this result !!!!! bana bu sonucu bulun​
DIA [1.3K]

Answer:

Not sure about want u want but if you want the purple line it is y=4 . and the blue line is 24.1

5 0
3 years ago
Can I get help please
WITCHER [35]

Answer:

sorry you cant get help but you can help me!

GO TO MY PAGE

Step-by-step explanation:

8 0
2 years ago
The area of a rectangular wall of a barn is 300 square feet. its length is 10 feet longer than twice its width. find the length
Savatey [412]

<span><span>L * W = 300 sq ft
</span><span> Length is 10 ft greater than twice the width.
L = 2W + 10
Substituting
(2W+10)*W = 300
2W^2 + 10W = 300
Divide both sides by 2
W^2 + 5W = 150
W^2 + 5W - 150 = 0
Factor
(W +15)(W -10) = 0</span></span>

<span>
<span> Roots are W=-15 and W=10.
A negative width is impossible, so W=10
L = 2W + 10
L = 2(10) + 10
L = 30</span></span>

 length = 30 feet, width = 10 feet

<span> Check: 30*10 = 300</span>


5 0
2 years ago
Other questions:
  • Suppose f(x)=x^2. Find the graph of f(x+2). Ive gone through the tutorial if someone could explain it that be extremely helpful.
    12·1 answer
  • A number h is tripled and then decreased by 8
    8·2 answers
  • Andrew writes the algrebraic expression 2s + 2.97 to represent the cost of his lunch. He bought 2 sandwhiches and a large drink.
    8·1 answer
  • 5. L
    12·1 answer
  • THIS IS URGENT. The table above shows the number of students that prefer a particular type of pizza. If there are 25 students
    7·2 answers
  • Simplify -k^2-(3k-6n)+2n when k=-3 and n=-5
    15·2 answers
  • A mechanic has sockets with sizes shown below. Write each fraction in the correct box.​
    5·1 answer
  • Answer this question please and thank you.
    5·2 answers
  • An item is regularly priced at $53. It is on sale for 35% off the regular price.
    13·1 answer
  • What is the converse of the conditional statement?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!