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
Over [174]
2 years ago
5

What is the discriminant of f(x)=2x^2+8x+16 and the number and type of roots​

Mathematics
2 answers:
vfiekz [6]2 years ago
7 0

Answer:

2 imaginary roots

Step-by-step explanation:

The discriminate is the portion of the quadratic equation under the square root

D = b^2 - 4ac

D = 8^2 - 4(2)(16)

D = 64 - 128

D = -64

Since the discriminate is negative the square root will be imaginary

and there will be 2 of them

2 imaginary roots

vekshin12 years ago
7 0

9514 1404 393

Answer:

  • discriminant: -64
  • two complex roots

Step-by-step explanation:

The discriminant of ax² +bx +c = 0 is b²-4ac. Here, we have ...

  a=2, b=8, c=16

so, the discriminant is 8² -4(2)(16) = 64 -128 = -64

A negative discriminant indicates there are two conjugate complex roots.

You might be interested in
Can someone check if this is right please? If not what is the correct way?
Charra [1.4K]

A, B, and C are the coefficients. They are not the terms as you have written now.

A quadratic equation is in the form Ax^2 + Bx + C. Therefore, A = 1, B = 8, and C = -6.

The axis of symmetry is  found using the equation -b/2a, as you've done. Therefore, the axis of symmetry is -8/2(1) = -4.

Hope this helps!! :)

6 0
3 years ago
PLAYGROUND There are 87 children at a playground. There are 23 more boys than girls. How many of each are at the playground?
UNO [17]

Answer:

G=32 B=55

Step-by-step explanation:

55+32=87

I know this answer is right bc I got it right on my ws.

3 0
4 years ago
-xv-2v+14x+7x^2<br><br> Factor By grouping
RoseWind [281]
The answer to the question

3 0
3 years ago
The function f(x) is given by the set of ordered pairs.
Lana71 [14]

The equation that is true and one that matches the set of ordered pairs of functions is option C. f (0) = 6

<h3>What is the equation about?</h3>

Note that a function can be made to be a given set of ordered pairs such as the ordered pairs (2,4), (3,5), (4,6)  can have  input functions of ​​(as domain) 2,3,4 and output functions of ​​(as range) of 4,5,6.

So when you see the ordered pairs. {(1,0), (–10,2), (0,6), (3,17), (–2, –1)} one can see that the option that matches to the set of ordered pairs of functions above is f (0) = 6 value x = 0, f (x) = y = 6, ordered pairs (0.6)

See full question below

The function f (x) is given by the set of ordered pairs. {(1,0), (–10,2), (0,6), (3,17), (–2, –1)}:Which equation is true?

f(-10)=1

f(2)=-10

f(0)=6

f(1)=-10

The answer choices are :

f (-10) = 1 values ​​x = -10, f (x) = y = 1, ordered pairs (-10,1)

f (2) = - 10 values ​​x = 2, f (x) = y = -10, ordered pairs (2, -10)

f (0) = 6 value x = 0, f (x) = y = 6, ordered pairs (0.6)

f (1) = - 10 values ​​x = 1, f (x) = y = -10, ordered pairs (1, -10)

Learn more about ordered pairs from

brainly.com/question/6200217

3SPJ1

8 0
2 years ago
How do you simplify 50 1/2+ -12.3
levacccp [35]

50 1/2 = 50.5

50.5 + -12.3

When adding a negative number to a positive number, it basically becomes just subtraction so  50.5 + -12.3 means 50.5 - 12.3

50.5 - 12.3 = 38.2

3 0
3 years ago
Other questions:
  • What is CXE ?? It’s for a good cause
    12·1 answer
  • IDENTIFY and EXPLAIN 5 strategies you can use to determine whether your answer is right or wrong for 20-2.34
    8·1 answer
  • What is 5 +5 ...........
    6·1 answer
  • What is the solution of the system of equations?
    7·1 answer
  • The number of sweets s that each friend gets is the number of sweets in a box n divided by the number of friends f the sweets ar
    10·1 answer
  • What are all the powers of 4 in the range 4 through 1,000​
    8·1 answer
  • jane spend $42 for her for shoes this was $14 less than twice what she spent for a blouse how much was the blouse​
    5·1 answer
  • Simplify the following expression by expanding the and collecting like terms -2 (-8x minus 4) + 3
    7·1 answer
  • Kyle ordered 7 large pepperoni pizzas from Wild Bill's Pizza, and he used the coupon shown above. If the total bill, after kyle
    8·1 answer
  • What is the value of −(3)4?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!