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
Leviafan [203]
2 years ago
6

Find the zeroes of the polynomial using the quadratic formula.

Mathematics
1 answer:
babymother [125]2 years ago
6 0

Answer:

Step-by-step explanation:

2x² - 3x - 15 = 5

2x² - 3x - 20  = 0

Quadratic formula

x = [3 ± √(3² – 4·2(-20))] / [2·2]

 = [3 ± √169] / 4

 = [3 ± 13] /4

 = -2.5, 4

You might be interested in
Which is a better deal, 5 tickets for $12.50 or 8 tickets for $20.16? Explain your reasoning. *
GenaCL600 [577]
First we have to see in both cases what is the cost of one ticket
in the fist case 12.5/5=2.5
in the second case 20.16/8=2.52
therefore 5 tickets for 12.5 is the better deal
3 0
2 years ago
Read 2 more answers
A $2,700 principal earns 5% interest, compounded annually. After 4 years, what is the balance in the account
natulia [17]

Answer:

Step-by-step explanation:

67001

7 0
2 years ago
Can someone help me with number one
kherson [118]
The relationship is not proportional because the boys and girls are in different grades and they are in different activities.
5 0
3 years ago
Which is 2logx - 6 log(x-9) written as a single logarithm.
Anton [14]

Answer: option c

Step-by-step explanation:

To solve this problem you must keep on mind the properties of logarithms:

log(b)-log(a)=log(\frac{b}{a})\\\\log(b)+log(a)=log(ba)\\\\a*log(b)=log(b)^a

Therefore, knowing the properties, you can write the expression gven in the problem as shown below:

2logx-6log(x-9)\\logx^2-log(x-9)^6\\\\log\frac{x^2}{(x-9)^6}

5 0
3 years ago
Read 2 more answers
! et up your proportions) Eduardo counted eight seconds between seeing lightning and hearing thunder, and he knew that the light
vova2212 [387]

Answer:

1 mile away this is right

3 0
2 years ago
Other questions:
  • What is the mean for this list of numbers? 13, 26, 33, 45
    12·2 answers
  • How to get the base of a parallelogram that has a area of 26 1/2 and a height of 6 5/8?
    15·2 answers
  • Describe the steps you would follow to write a two-step inequality you can use to solve a real-world problem
    8·1 answer
  • Rory found that 4/12 of the trading cards in his collection that are hockey cards. in simplest form, which fraction of rorys car
    12·1 answer
  • By​ air, the distance from city a to city b is 3008 miles less than the distance from city c to city
    8·1 answer
  • Solve the system of equations​
    6·1 answer
  • In how many revolutions can bicycle wheel of diameter 4.9m cover a distance of 46.2km?
    10·1 answer
  • Which is better, a really good desert, or a really yummy dinner? What is your favorite?
    15·2 answers
  • Ms. Harper knows that her students in a computing course can choose from one of three operating systems for the semester: Doors,
    10·1 answer
  • Graph the equation on the coordinate plane. y=x-3 Select two points on the line to graph the line.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!