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
kap26 [50]
3 years ago
10

HELP ASAP one solution to a quadratic function, f, is given below. (sqrt of 7) + 5i which of the following statements is true ab

out the given function? a) the other solution to the function is - sqrt7 -5i b) the other solution to the function is sqrt7 -5i c) the other solution is -sqrt7 + 5i d) function f has no other solutions.
Mathematics
2 answers:
mash [69]3 years ago
7 0

Answer:

b

Step-by-step explanation:

complex solutions occur in conjugate pairs, hence

\sqrt{7} + 5i , then \sqrt{7} - 5i is also a solution


mel-nik [20]3 years ago
4 0

Answer:

Option b). the other solution to the function is \sqrt{7}-5i

Step-by-step explanation:

In a given quadratic function f(x) = ax² + bx + c, if b² - 4ac < 0 then bothe the solutions of the function will have two complex roots.

Roots of this function will be the complex conjugates.

Since one root of the equation is given as \sqrt{7}+5i

Then other solution will be its complex conjugate as \sqrt{7}-5i

Therefore, Option B) will be the answer.

You might be interested in
A used car dealer sells SUVs and cars. Of all the vehicles, 85% are cars. Of all the vehicles, 32% are red cars. What is the pro
oksian1 [2.3K]

Answer:

37.6%

Step-by-step explanation:

P(A|B) = P(A and B) / P(B)

P(red | car) = P(red and car) / P(car)

P(red | car) = 0.32 / 0.85

P(red | car) = 0.376

8 0
3 years ago
CDs costs $4 each and DVD cost $8 each.
Licemer1 [7]

Answer:

0 and 4

1 and 3

2 and 2

3 and 1

4 and 0

Step-by-step explanation:

If you need 4 gifts and you want to spend less than $40, then you could buy

1 cd+ 3 dvds for $25

2 cds + 2 dvds for $24

3 cds + 1 dvd for $20

4 cds and 0 dvds for $16

0 cds and 4dvds for $32

Any of these solutions will work

8 0
3 years ago
Find the circumference of the pizza to the nearest tenth.
mote1985 [20]

Answer:

C=2πr

r=D/2=10/2=5

C=2×3.14×5

C=31.4in

7 0
3 years ago
Could someone answer these 3 for me?
KengaRu [80]

Answer:

x=4.77

Angle 3=98.32 degrees

Angle 6= 81.68 degrees

Step-by-step explanation:

(Assuming these are parallel lines), Angle 3 and angle 5 are equal because they are alternate Angles. Therefore we can write the following equation to solves for x:

16x+22=3x+84 (angle 3=angle5)

Which we can now solve:

16x +22 - 22 - 3x=3x-3x+84-22

13x=62

13x/13=62/13

x=4.77 (2dp)

We can then use this x to calculate angle 3:

16(4.77)+22

76.33+22=98.32 degrees

Finally,

Angle 6 and angle 3 are interior angles, so they add up to 180 degrees.

So to find angle 6,we can just subtract angle 3 from 180:

180-98.32=81.68 degrees.

Hope this helped!

6 0
3 years ago
Mrs.Johnsons new car has an 18 gallon gas tank. If she can travel 400 miles on one tank of gasoline, what is her miles per gallo
serious [3.7K]

Answer:

22

Step-by-step explanation:

400/18=22.222222222

Round to 22

5 0
3 years ago
Other questions:
  • Solve the following equations
    14·2 answers
  • Vhich expression is equivalent to 16^3
    9·1 answer
  • Add the two expressions. −4.2x+3 and 2.5x−6 Enter your answer in the box.
    9·2 answers
  • Find the function rule.
    7·1 answer
  • What is the solution set for x + 4 &gt; -6 and 3x - 2 &lt; -2
    15·1 answer
  • Help with this please?????
    10·1 answer
  • How to write 203.42000 in standard form and expanded form?
    8·2 answers
  • Which graph represents the proportional relationship given by the rule "y is 3 times the value of x"?
    14·2 answers
  • 4x + 8y<br> 4(2) +8(-1)<br> 8 +(-8)<br> 0<br> What is the answer?
    5·1 answer
  • If y =-5 when x =12.5 find x when y =15
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!