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
yan [13]
2 years ago
5

Solve by completing the square 2x^2+x-4=0​

Mathematics
1 answer:
Natali [406]2 years ago
4 0

Answer:

x=-1±[65]

________

8

Step-by-step explanation:

solve the equation for xby finding a,b, and come of the quadratic then applying the quadratic formula

You might be interested in
Guys, I need help:
natima [27]

Answer:

5 times is the answer

7 0
3 years ago
A line includes the points (4, 8) and (3, 5). What is its equation in slope-intercept form? Write your answer using integers, pr
stich3 [128]

Answer:

A line includes the points (4, 8) and (3, 5) whose equation in slope-intercept form will be :

y=3x-4

Step-by-step explanation:

The point slope form: (x_1,y_1) and(x_2,y_2)

(y-y_1)=m(x-x_1)

where : m = Slope of the line

m=\frac{y_2-y_1}{x_2-x_1}

A line includes the points (4, 8) and (3, 5).The equation of the line will be:

m=\frac{5-8}{3-4}=3

(y-8)=3\times (x-4)

y-8=3x-12

y=3x-4

(y=mx+c), where c is intercept at y axis.

The above equation represents slope-intercept form of the line.

6 0
3 years ago
Which is the equation of the linear model?
Zielflug [23.3K]
The answer is B. y =  0.75 + 2.25. because i've done this assement.

3 0
3 years ago
The life expectancy of a particular brand of tire is normally distributed with a mean of 40,000 and a standard deviation of 5,00
timama [110]

Answer: the probability that a randomly selected tire will have a life of exactly 47,500 miles is 0.067

Step-by-step explanation:

Since the life expectancy of a particular brand of tire is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = life expectancy of the brand of tire in miles.

µ = mean

σ = standard deviation

From the information given,

µ = 40000 miles

σ = 5000 miles

The probability that a randomly selected tire will have a life of exactly 47,500 miles

P(x = 47500)

For x = 47500,

z = (40000 - 47500)/5000 = - 1.5

Looking at the normal distribution table, the probability corresponding to the z score is 0.067

6 0
3 years ago
Change the improper fraction to a mixed number. 15/4
AleksAgata [21]
3 3/4 this would be your answer hope this is helpful
8 0
3 years ago
Read 2 more answers
Other questions:
  • Pentagon CRAFT has coordinates c(-2,1) r(-5,2) a(-6,7) f(-3,9) and t(-1,6) and is dilated by a scale factor of 2/3 at the origin
    12·1 answer
  • 2. A scoop of ice cream in the shape of a whole perfect sphere sits in a right cone.
    9·1 answer
  • Which equation is related to the equation shown?
    15·1 answer
  • Holly is trying to save $25,000
    10·2 answers
  • Classify each number as rational or irrational.<br> 4.27 ,0.375 ,0.232342345...<br> V62 ,13/1
    9·1 answer
  • Why is Math so easy, &amp; I hate ELA, Reading is so Bogus to Be honest with you guys, but I have to deal with it, and get my Ed
    15·1 answer
  • I don’t understand please help!!!!
    15·1 answer
  • Use the method illustrated in the solutions to Exercise 9.2.39 to answer the following questions. (a) How many ways can the lett
    9·1 answer
  • Rachel is treating her three friends to go see The Avengers: End Game. Each movie ticket costs x dollars. Rachel orders each of
    9·1 answer
  • <img src="https://tex.z-dn.net/?f=what%20%5C%3A%20is%20%5C%3A%204%20%5Cdiv%206%20-%2010%20%20%5C%5C%20" id="TexFormula1" title="
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!