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
densk [106]
3 years ago
15

What is the value of the discriminant for the quadratic equation 0 = x + 2 + x2? Discriminant = b2 – 4ac –9 –7 7 9

Mathematics
2 answers:
padilas [110]3 years ago
4 0

Answer:

-7

Step-by-step explanation:

x^2+x+2=0 \\\\b^2-4ac= \\\\1^2-4(1)(2)= \\\\1-8= \\\\-7

Hope this helps!

Vsevolod [243]3 years ago
4 0

Answer:

Step-by-step explanation:

First get it into ax^2+bx+c

a=1

b=1

c=2

sqrt(b^2-4ac)=1-8=sqrt(-7)=sqrt(7)*i

You might be interested in
Solve the following equation: x÷3-5=-7
Elodia [21]

Answer:

- 6

Step-by-step explanation:

Step 1:

x ÷ 3 - 5 = - 7   Equation

Step 2:

x ÷ 3 = - 2   Add 5 on both sides

Answer:

x = - 6   Multiply 3 on both sides

Hope This Helps :)

3 0
2 years ago
Bessie has an annual salary of $51,360. Each month she has a car payment of $210 and a student loan of$50. If she applies for a
Svetach [21]
Every month she makes 4280 usd. $51,360/12 months...she pays her debt ($260) a month.....she will be approved. 1:16 Ratio
6 0
3 years ago
9x8-29+30/15-15 I'm looking for the answer plz
olasank [31]
9×8-29+30/15-15 equals 30
7 0
3 years ago
Helpeoepeoeoeo show work
alukav5142 [94]

<em>IMPORTANT THIGNS TO REMEMBER:</em>

  • Has 20 lb. dog food!
  • Gives dog 1 3/5 everyday!
  • Find how much eaten after 2 days!
  • Find how much is left!

<em>ANSWER:</em>

Dog has eaten 3 1/5 after 2 days!

There is 16 4/5 left in bag!

<em>EXPLANATION:</em>

Since she gives 1 3/5 to her dog everyday and their asking for 2 days you would multiply 1 3/5 × 2 OR add 1 3/5 + 1 3/5

Which would give you 3 1/5

So, the dog has eaten 3 1/5 lb. of dog food in 2 days.

However then, you would subtract 20 lb. - 3 1/5 lb. because there is 20 lb. dog food in all and the dog has eaten 3 1/5 of it. This would give you 16 4/5 lb.

Meaning there is 16 4/5 lb. left in the bag of dog food!

4 0
2 years ago
The standard deviation of the data set is 2.3. Compute the variance to the nearest hundredth. 2,2,2,3,5,5,6,7,8
Arada [10]
The standard deviation is the square root of the variance...so that means the variance is the standard deviation squared.

2.3^2 = 5.29 <===
7 0
3 years ago
Other questions:
  • the scale for a map to actual distance is 2 cm to a 100 miles the actual distance on the map be between Los Angeles and Las Vega
    13·1 answer
  • Simplify: (27)^1/3•(27)^2/3
    7·1 answer
  • Pls help now, if possible.
    12·2 answers
  • The table shows the total weight of
    14·1 answer
  • Write the numerical answer only. Do not include labels, dollar signs, or units.
    11·1 answer
  • FOR 20 points
    6·1 answer
  • Question 3 (2 points
    11·1 answer
  • Please help i need it thank you so much i will mark brainliest if correct.
    9·1 answer
  • Find the value of (1/32)^(1/5)​
    10·2 answers
  • Assume that 22 kids have their names (all different) put into a hat. The teacher is drawing 5 names to see who will speak first,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!