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
shepuryov [24]
3 years ago
11

If a polynomial function f(x) has roots 3 and V7, what must also be a root of f(x)?

Mathematics
1 answer:
Tatiana [17]3 years ago
6 0

Answer:

- \sqrt{7}

Step-by-step explanation:

Radical roots occur as conjugate pairs.

Thus if x = \sqrt{7} is a root then - \sqrt{7} is also a root

You might be interested in
The price of a television was reduced from $250 to $200. What was the percent decrease in price? HELPP? ILL GIVE YOU A BRAINLLES
Diano4ka-milaya [45]

Answer:

20%

I hope this is good enough:

8 0
3 years ago
Which ratio is proportional to 18/28 ? <br> Help me plzzzz i will give brainliest
maks197457 [2]

Answer:

18/21 = 30/35

Step-by-step explanation:

so the problem says 18/21 so if that's the correct ratio to proportion to the answer would be. 30/35. the reason is that you can divide 18 and 21 by 3 to get 6/7 then if you multiply by 5 you get 30/35. Dividing and multiplying both the denominator and numerator keeps the ratio proportional.

3 0
3 years ago
Can anyone help me? no links
NNADVOKAT [17]

Answer:

Step-by-step explanation:

Sum: addition

Difference: subtraction

Product: multiplication

Number                    Sum                    Difference                    Product

1, 4                         1 + 4 = 5                     4 - 1 = 3                       1 * 4 = 4

2, 8                       2 + 8 = 10                   8 - 2 = 6                      2 * 8 = 16

Hope this helps!

3 0
2 years ago
PLEASE HELP ME OUT I NEED IT !!
lisov135 [29]

Answer:

(1/2 ,3) or (0.5, 3) is the same

Step-by-step explanation:

The midpoint between (3,5) and (-2,1) would be:

Apply the formula:

x1+x2 / 2 , y1 + y2 / 2

= 3 + (-2) / 2, 5 + 1 /2

= 1/2, 6/2

= 1/2 ,3 or 0.5, 3 is the same

Hope this helped :3

4 0
3 years ago
Let f(x) = xe^-x+ ce^-x, where c is a positive constant. For what positive value of c does f have an absolute
Illusion [34]

Answer:

c=6

Step-by-step explanation:

The absolute maximum of a continuous function f(x) is where f'(x)=0. Therefore, we must differentiate the function and then set x=-5 and f'(x)=0 to determine the value of c:

f(x)=xe^{-x}+ce^{-x}

f'(x)=-xe^{-x}+e^{-x}-ce^{-x}

0=-(-5)e^{-(-5)}+e^{-(-5)}-ce^{-(-5)}

0=5e^{5}+e^{5}-ce^{5}

0=e^5(5+1-c)

0=6-c

c=6

Therefore, when c=6, the absolute maximum of the function is x=-5.

I've attached a graph to help you visually see this.

7 0
3 years ago
Other questions:
  • What is the square root of -1?
    5·2 answers
  • 12.4 x -1.35 <br> A. 1.674 <br> B. -16.74 <br> C. -1.674 <br> D. 16.74
    5·1 answer
  • What two-digit numbers greater than 69 are divisible by 2 and 11?
    5·1 answer
  • Solve and graph each inequality please helo this is due tomorrow please 15 points!!​
    5·1 answer
  • On a trip of d miles to another city, a truck driver's average speed was x miles per hour. On the return trip, the average speed
    12·1 answer
  • The angle of a triangle is 30 degrees 60 degrees and 90 degrees Is this a unique triangle
    13·1 answer
  • Which graph represents the solution to the given system? y = –2x + 5 and y = 3x – 2
    11·2 answers
  • Mario has been at bat 22 times this baseball season. Of the times at
    14·2 answers
  • What does decreasing interval mean?
    10·1 answer
  • Find the next 3 terms in the arithmetic sequence: -10, -14, -18, -22....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!