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
svp [43]
3 years ago
12

What is the solution for (x −2)(x + 5) = 18

Mathematics
1 answer:
34kurt3 years ago
7 0

Answer:

x-2+x+5=18

x+x=18-5+2

2x=13+2

2x=15

2x/2=15/2

x=15/2 or 7.5

You might be interested in
A culture started with 4,000 bacteria. After 5 hours, it grew to 4,800 bacteria. Predict how many bacteria will be present after
eimsori [14]
First we need to find k ( rate of growth)
The formula is
A=p e^kt
A future bacteria 4800
P current bacteria 4000
E constant
K rate of growth?
T time 5 hours
Plug in the formula
4800=4000 e^5k
Solve for k
4800/4000=e^5k
Take the log for both sides
Log (4800/4000)=5k×log (e)
5k=log (4800/4000)÷log (e)
K=(log(4,800÷4,000)÷log(e))÷5
k=0.03646

Now use the formula again to find how bacteria will be present after 15 Hours
A=p e^kt
A ?
P 4000
K 0.03646
E constant
T 15 hours
Plug in the formula
A=4,000×e^(0.03646×15)
A=6,911.55 round your answer to get 6912 bacteria will be present after 15 Hours

Hope it helps!
4 0
3 years ago
Read 2 more answers
Is 1.23 repeating rational or irrational
AleksAgata [21]
Looks like a irrational answer because it has a meaning
8 0
4 years ago
Read 2 more answers
Can someone please answer my question before this one go to my profile to view
Elenna [48]

Answer: Okay, what's the question?

Step-by-step explanation:

7 0
3 years ago
In the last ten games, Jamal made 7/9 of his free throws and brian made 5/8 of bis free throws. Which player has the better reco
Andrei [34K]
Jamal because he has a higher percentage of shots made 78%>62%
4 0
3 years ago
How do i acquire wealth, how do i get rich
Delvig [45]
Rich in the world Become a youruber
4 0
3 years ago
Other questions:
  • Which statements are true?
    13·2 answers
  • Which value would be a solution for x in the inequality 47-4x<7
    10·2 answers
  • Solve the following question
    9·2 answers
  • Passengers of flyaway airlines can purchase tickets for either business class or economy class. On one particular flight there w
    9·1 answer
  • two angles are a linear pair. the measure of the first angle minus 39 is equal to twice the measure of the second angle. What ar
    11·1 answer
  • What is the equation for the line of reflection?
    7·1 answer
  • If m 2 n, which inequalities must be true? Check all that apply.
    7·2 answers
  • Geometry <br> Part of a quiz
    9·2 answers
  • The answer to 68 + (-43) is?
    10·2 answers
  • Alexa is saving to buy a new bike that costs $265. So far she has saved $45. If she is able to save $11 each week, how many week
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!