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
4vir4ik [10]
3 years ago
7

Find the discriminant. - 4y^2- 8y + 2 = 0

Mathematics
1 answer:
Lemur [1.5K]3 years ago
7 0

Answer:

this is not equal to zero

You might be interested in
Given the relation R = {(-2, 3), (a, 4), (1,9), (0,7)}.
aniked [119]

Answer:

The answer would be 4

Step-by-step explanation:

you can’t have repeating numbers in a function.

4 0
3 years ago
a line is graphed on the xy-plane. If the line has a positive slope and a negative y-intercept, which of the following points ca
sdas [7]
If the line has a positive slope and a negative y-intercept, then the <span>points cannot lie on the line where x is negative and y is positive. The points never lie at quadrant 1. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
6 0
3 years ago
Read 2 more answers
3 balls are placed in 3 boxes at random. What is the probability that exactly 2 boxes remain empty
matrenka [14]

If 2 boxes remain empty, it means that we put all three balls in one single box.

Suppose the full box is box number 1. For each ball, we have three choices - we may put it in box number 1, 2 or 3. This means that each box has a 1/3 chance of receiving each ball.

So:

  • we choose box 1 for ball 1 - that's a 1/3 chance
  • we choose box 1 for ball 2 - that's a 1/3 chance
  • we choose box 1 for ball 3 - that's a 1/3 chance

So, the probability of putting all balls in box 1 is

\dfrac{1}{3}\times\dfrac{1}{3}\times\dfrac{1}{3} = \dfrac{1}{3^3}

But this is the probability of putting all ballx in box 1, and you can repeat this logic for box 2 and 3.

So, the probability of putting all balls in one single box is 1/27 for each box, for a total of

\dfrac{1}{27} \times 3 = \dfrac{1}{9}

5 0
3 years ago
Simplify the expression,<br> -2.75 +0.31 - 16-3
dalvyx [7]

Answer:

decimal form is -21.44 and fractional form is -536/25

Step-by-step explanation:

8 0
3 years ago
If 1/2x^2 - 1/4 x + 3 what is the value of x = 8 ?
Vitek1552 [10]

Answer:

If x=8 then the equation is equal to 33

If 1/2(x)^2-1/4x=3=8 then x=-2.98 and x=3.35

Step-by-step explanation:

Given:

1/2x^2-1/4x+3

Two solutions possible:

If x=8 then 1/2(8)^2-1/4(8)+3=32-2=3=33

If 1/2(x)^2-1/4x+3=8 then .5x^2-.25x-5=0

factoring:

(.707x+2.11)(.707x-2.37)=0

.707x=-2.11 and .707x=2.37

x=-2.98 and x=3.35 rounded to 2 places

7 0
3 years ago
Other questions:
  • RNA has a double helix like DNA. True or False
    13·2 answers
  • [x÷(y–1)](−4)–[xy+(−3)]÷(−1) if x=−5, y=−2
    15·1 answer
  • What is the equation of a line, in slope-intercept form, that passes through (−8, 1) and has a slope of 5/6 ?
    10·1 answer
  • Molly shot 20 baskets in 4 minutes. Nico shot 42 baskets in 6 minutes. How many more baskets did Nico shoot per day minute?
    5·2 answers
  • Help please Algebra 2 B
    5·1 answer
  • __: 11 = 1/3 : 6 is a math problem about ratios. Please solve!!
    6·1 answer
  • Mr. Garner purchased a party hall and wants to repaint it as part of the renovations. He needs to calculate the lateral surface
    15·1 answer
  • Which point is NOT correctly placed on this number line?
    11·2 answers
  • Write an equation in​ point-slope form of the line that passes through the given point and with the given slope m.
    10·1 answer
  • find two consecutive integers odd integers such that 4 times the smaller integer is 59 less than 7 times the larger integer
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!