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
padilas [110]
3 years ago
6

Determine the nature of the roots:

Mathematics
1 answer:
malfutka [58]3 years ago
5 0

Answer:

A.  2 distinct roots.

Step-by-step explanation:

2x^2 + 8x + 3 = 0

Finding the discriminant:

b^2 - 4ac = 8^2 - 4 * 2 * 3

=  64 - 24

= 40

The discriminant is positive but not a perfect square

So there are 2 distinct ,real, irrational roots.

You might be interested in
LabTech is a company that manufactures microscopes and other laboratory instruments . On occasion, one of the microscopes is def
Scrat [10]

Answer:

0.0782 (7.82%)

Step-by-step explanation:

The required probability will be found by using the Binomial Distribution which fits the case of n independent events each with a probability of success equal to p with k successes.

The PMF (Probability Mass Function) is

f(k,n,p)=\binom{n}{k}p^kq^{n-k}

Where q = 1-p

LabTech states that the probability that a microscope is defective is 0.17%, p=0.0017, q=0.9983. We need to know the probability that k=1 microscope is defective out of a set of n=50 of them. We now apply the formula

f(1,50,0.0017)=\binom{50}{1}0.0017^10.9983^{49}=0,0782

Which means that there is a 7.82% of probability to get 1 defective microscope out of the first 50

5 0
3 years ago
The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75 at
satela [25.4K]
The total cost is the dependant variable and the number of tickets along with flat out price is the independent variable.

The equation would be y = 1.25x + ?

You would insert 25 for x which equals 31.25 and insert 43.75 for y.

43.75 = 31.25 + ? Then subtract 31.25 from both sides of the equation and you would get....

12.5 = ?

That is your flat rate to get in to the fair 




7 0
4 years ago
Marissa counted 29 coins in her change purse which contained, d, dimes and, q, quarters. The value of the coins is $5.00. How ma
avanturin [10]

Answer:

i think the rubber ducky in the bath died on the celling so she was happy and then there was a puddle of tears on the ground so thats why u should never go to school

Step-by-step explanation:

4 0
3 years ago
What is the probability of rolling a 4 on a single sided die and then rolling a 6?
Rzqust [24]

Answer:

If it is a six-sided die then it has the probability of 1/6 or .16

Step-by-step explanation:

4 0
3 years ago
A ramp rises 2.9 ft vertically and extends 58 At horizontally. Find the slope of the ramp.​
Ymorist [56]

Answer:

0.05

Step-by-step explanation:

The formula for slope is rise/run.

So, in this case it would be 2.9ft/58ft = 0.05

8 0
3 years ago
Read 2 more answers
Other questions:
  • Given: ΔАВС, m∠ACB = 90°<br> CD ⊥ AB,<br> m∠ACD = 60°<br> BC = 6 cm.<br> Find: АD
    11·2 answers
  • Combining like terms <br><br> simplify each expression<br> -v + 12v
    8·2 answers
  • Name each term of the polynomial : (–9x^4)+(y^3)–7y+19
    7·1 answer
  • Megan uses 2/3 cup of almonds to make 4 cups of trail mix. Using this same proportion how many cups of almonds would Megan need
    14·1 answer
  • Which graph shows the system StartLayout Enlarged left-brace 1st row x squared + y = 2 2nd row x squared + y squared = 9 EndLayo
    11·1 answer
  • Use the substitution method to solve the system of equations. Choose the correct ordered pair. y=6x-4 y=7x-7
    10·1 answer
  • Please help im timed with 3 mins left!<br> will mark branliest
    7·2 answers
  • Find the value of X plsss help!!
    13·1 answer
  • The length of the highway is 500 miles. If 1 inch represents 100 miles, what is
    12·1 answer
  • A water tank already contains 56 gallons of water in Baxter begins to fill it. water flows into the tank at a rate of 8 gallons
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!