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
asambeis [7]
3 years ago
6

How can I solve this equation 5x^2-2x-6=-2x^2+9x

Mathematics
1 answer:
wel3 years ago
3 0
Add 2x^2 to both sides
7x^2-2x-6=9x

Subtract 9x from both sides
7x^2-11x-6=0

Factor by using slip and slide
x^2-11x-42
(x-14)(x+3)
(x-14/7)(x+3/7)
(x-2)(7x+3)

Then use the Zero Product Property to find roots
x-2=0
x=2

7x+3=0
7x=-3
x=-3/7

Final answer: x=-3/7, x=2
You might be interested in
Your making chocolate chip cookies. The recipe calls for 1/8 teaspoon salt to 1/4 teaspoon baking soda. How much salt is needed
Citrus2011 [14]

Answer:

1/2 teaspoon salt

Step-by-step explanation:

We can make this into a ratio of salt:baking soda

1/8:1/4

now, how many 1/4 will we need to make 1?

If we multiply 1/4 by 4, we get one. So, we should do the same to 1/8!

1/8*2=4/8, or 1/2 teaspoon

3 0
3 years ago
Por fa es para hoy ​
Agata [3.3K]
Las imágenes estás al revés puedes ponerlas bien por favor
7 0
3 years ago
Suppose Antonio buys a CD for $500 that earns 3% APR and is compounded monthly. The CD matures in 1 year. How much will Antonio'
Luden [163]

Answer:

$515.21

Step-by-step explanation:

Because you're compounding monthly, use the formula:

A(t)=P(1+\frac{r}n)^{nt}}

where A(t) is the amount after the compounding,

P = $500

r = .03 (always in decimal form!)

n = 12 (monthly is every month, and there are 12 months in a year) and

t = time in years

Filling in our given info:

A(t)=500(1+\frac{.03}{12})^{(12)(1) which simplifies to

A(t) = 500(1 + .0025)¹² which simplifies to

A(t) = 500(1.0025)¹² which simplifies to

A(t) = 500(1.030415957) so

A(t) = $515.21

4 0
4 years ago
Read 2 more answers
What is 1/8 times 2/7 in simplest form
PtichkaEL [24]

Answer:

decimal form: 0.0357

fraction form: 375/10000

Step-by-step explanation:

7 0
3 years ago
PLEASE HELP! I've reposted this soooo many times and no one answered, I WILL GIVE BRAINLIEST!​
ASHA 777 [7]

Answer: C

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • 2 6/27 in simplest form
    14·1 answer
  • Suppose r(t)=costi+sintj+3tk represents the position of a particle on a helix, where z is the height of the particle above the g
    10·1 answer
  • Round to the nearest hundred 1,139
    12·1 answer
  • Bank B offers Tyler 3% interest compounded annually. How much would Tyler’s investment be worth after 6 years in this account? S
    8·2 answers
  • Describe the steps needed to solve 8x-12y=-3 for y.
    6·1 answer
  • Valerie uses 12 fluid oz of detergent each week for her laundry.if there are 75 fluid oz of detergent in the bottle in how many
    14·2 answers
  • There are two numbers which sum to 16. If one number is eight less than three times the other, find the numbers.
    9·1 answer
  • you need scheduling a job that needs 3 certified lab technician 12 associates one supervisor paying lab technician 12 per hour t
    15·1 answer
  • 5. Rectangle ABCD is graphed in the coordinate plane. The following are vertices of the rectangle: A(-1,-6), B(-1,-7), C(1,7), a
    6·1 answer
  • What is f(g(0)))-1 0 1
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!