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
Dmitry [639]
3 years ago
12

I NEED HELP ASAP!! WILL MAKE YOU BRAINLIEST IF RIGHT +40 points!

Mathematics
2 answers:
Simora [160]3 years ago
8 0

The standard form of a quadratic equation is ,

ax² + bx + c = 0.

And the formula to find the discriminant is b² - 4ac.

Here the first step is to change the given equation into standard form. So, add 1 to each sides of the equation. Therefore,

2x² – 9x + 2+1 = –1 + 1

2x² – 9x + 3 = 0

Next step is to compare the given equation with this equation to get the value of a, b and c.

After comparing the equations we will get a = 2, b = -9 and c = 3.

So, discriminant = b²- 4ac

=( -9)²-4 (2)(3)

= 81 - 24

= 57

So, discriminant of the given equation is 57.

57 is greater than 0 and square root of 57 will result real number.

So, the correct choice is C: The discriminant is greater than 0, so there are two real roots.

Nata [24]3 years ago
7 0

C. The discriminant is greater than 0, so there are two real roots.

You might be interested in
If the coordinates of point a are -3 and 2 and the coordinates of point B are 7 and 6 the x-intercept of CD is what
AveGali [126]

Answer:

The x-intercept of CD is -19/5

Step-by-step explanation:

If the coordinates of the first point is (-3, 2) and the coordinates of the point B are (7, 6) then we need first to find the equation of the line CD:

We know that the general equation of the line is:

y-y0 = m(x-x0) where (x0, y0) represents a point that belongs to the line and m, is the slope which can be calculated by using the following formula:

m = (x1 - x0) / (y1 - y0)

In this case:

(x1, y1) = (7, 6)

(x0, y0) = (-3, 2)

Then:

m = (7 - (-3))/(6-2) = 10/4 = 5/2.

Then, the equation of the line is:

y-y0 = m(x-x0)

y - 2 = 5/2 (x -(-3))

y = 5/2(x+3) + 2

To find the x intercept we make y=0.

Then y = 5/2(x+3) + 2 = 0

Then:

x = -4/5 - 3 = -19/5

3 0
3 years ago
Which figure is shown
Ainat [17]

Answer:

pyramid

Step-by-step explanation:

plz make me brainliest

7 0
3 years ago
Angle a measures 50 degrees. if angle a is rotated 45 degrees, what is the measure of angle a'?
Sindrei [870]

Answer

The answer is 50 degrees because the measurement does not change even though it moves 1000 times.

Step-by-step explanation:


8 0
3 years ago
I WILL MARK YOU BRAINLIEST!!!!
satela [25.4K]

Answer:

0; one real roots

* the answer is C

5 0
3 years ago
A coin will be tossed twice, and each toss will be recorded as heads (H) or tails (T).
Marta_Voda [28]
Sample space for all possible outcomes:

HH, HT, TH, TT


Sample space for event where heads is the first toss:

HT, HH
5 0
3 years ago
Other questions:
  • What is the exact circumference of the circle?
    9·2 answers
  • How do you solve P = C+MC, for M??
    14·1 answer
  • Três crianças foram à lousa e cada uma escreveu uma fração.
    11·1 answer
  • Roger drives 256km and uses 20l of fuel. what is his average fuel consumption for 100km?
    14·1 answer
  • 3x + 4 = 5x - 12; x = 8 true or false?
    14·2 answers
  • GIVING BRAINLEIST!!!!
    7·2 answers
  • An air-conditioning repair technician claims to complete 67% of repairs in under an hour. A random sample of 31
    13·1 answer
  • 3). What is the area of a rectangular window measuring 36 inches across 25 points
    6·1 answer
  • What is the supplement to an angle that measures 58 degrees? <br>a) 180<br>b)122<br>c)132<br>d)58​
    13·2 answers
  • Find two natural numbers that are multiples of both 12 and 15​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!