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
Georgia [21]
3 years ago
12

7x(x+1.8)=0 7x(x+1.8)=0 7x(x+1.8)=0 Answer those 3

Mathematics
1 answer:
ahrayia [7]3 years ago
3 0

Answer:

The answer to all of those questions would be x=-1.8

Step-by-step explanation:

7x(x + 1.8) = 0 - Distribute through the Parenthesis -

7x^2 + 12.6x = 0

x(7x + 12.6) = 0


x = 0


7x + 12.6 = 0

7x = -12.6

x = -12.6/7

x = -1.8


so x = 0 or x = -1.8

You might be interested in
Use the frequency table to determine how many students received a score of 80 or better on an English exam.
Sveta_85 [38]
10 students scored above an 80
3 0
3 years ago
Mr. Deveney bought 4 DVDs for $25.20. What was the price per DVD?
ollegr [7]

Answer:

$6.30 per DVD

Step-by-step explanation:

25.20/4= 6.3

7 0
3 years ago
he initial number of views for a blog was 20. The number of views is growing exponentially at a rate of 20% per week. What is th
Goryan [66]
The answer to this problem is about 42 views.
3 0
3 years ago
Read 2 more answers
I need help with slopes in math​
e-lub [12.9K]
What do u wanna know?
6 0
3 years ago
Read 2 more answers
Express p in terms of q if
Irina-Kira [14]

p=x^2+\dfrac{1}{x^2}\\\\p=\dfrac{x^4}{x^2}+\dfrac{1}{x^2}\\\\p=\dfrac{x^4+1}{x^2}\qquad(*)

q=x+\dfrac{1}{x}\\\\q=\dfrac{x^2}{x}+\dfrac{1}{x}\\\\q=\dfrac{x^2+1}{x}\qquad\text{square both sides}\\\\q^2=\left(\dfrac{x^2+1}{x}\right)^2\\\\q^2=\dfrac{(x^2+1)^2}{x^2}\qquad\text{use}\ \ (a+b)^2=a^2+2ab+b^2\\\\q^2=\dfrac{(x^2)^2+2(x^2)(1)+1^2}{x^2}\\\\q^2=\dfrac{x^4+2x^2+1}{x^2}\\\\q^2=\dfrac{x^4+1}{x^2}+\dfrac{2x^2}{x^2}\\\\q^2=\dfrac{x^4+1}{x^2}+2\qquad\text{subtract 2 from both sides}\\\\q^2-2=\dfrac{x^4+1}{x^2}\\\\\text{From (*) we have}\\\\\boxed{p=q^2-2}

8 0
3 years ago
Other questions:
  • Find an equation for the perpendicular Bisector of the line segment whose endpoints are (-9,-8) and (7,-4
    9·1 answer
  • Find the inverse of the function. y = x2 + 4x + 4
    14·2 answers
  • Solve the equation 5=1/2 v-3 <br><br> v=?
    5·1 answer
  • Please help me find the solutions! WILL MARK BRAINLIEST
    7·1 answer
  • Compute the face value of a 90-day promissory note dated October 22, 2018 that has a maturity value of $76,386.99 and an interes
    5·1 answer
  • What is the domain of the following parabola?
    13·2 answers
  • To make sure the lobsters are cool but not frozen, you need to keep their temperature between 32 and 40 degrees Fahrenheit while
    11·1 answer
  • What is the value of − 9 × ( 1 4 ) ÷ ( − 0.75 ) ?
    8·1 answer
  • What is the answer to this???
    15·2 answers
  • Hai again! I have 2 question, one is a present!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!