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
VARVARA [1.3K]
3 years ago
5

Please help asap.I don't understand ​

Mathematics
1 answer:
matrenka [14]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Given the zero x = a of f(x) then f(a) = 0

(5)

f(9) =9³ - 8(9)² - 2(9) - 63 = 729 - 648 - 18 - 63 = 0

Hence x = 9 is a zero of the polynomial

(6)

2(-3)^{4} - 3(- 3)³ - 36(- 3)² - 37(- 3) - 26 = 162 + 81 - 324 + 111 - 26 = 4 ≠ 0

Hence x = - 3 is not a zero of the polynomial

You might be interested in
Choose a college student at random. Decide whether each of the following is a discrete or continuous random variable:
EleoNora [17]

Answer:

1. Discrete

2. Continuous

3. Continuous

4. Discrete

5. Continuous

6. Discrete

Step-by-step explanation:

Continuous:

Real numbers, can be integer, decimal, etc.

Discrete:

Only integer(countable values). So can be 0,1,2...

1. The number of courses the student takes this semester:

You can take 1 course, 2 courses, 3 courses, ...

Only countable values, the student cannot take 2.5 courses, for example. So discrete

2. The student's height:

Can be decimal numbers, for example, 1.8 meters. So continuous.

3. The student's (exact) body temperature:

Can be decimal numbers, for example, 96.7 ºF. Continuous.

4. The number of siblings the student has:

Cannot be decimal.

You can have 0, 1, 2, ..., 20,... siblings

Discrete

5. The (exact) time the student spends doing school work during a week:

Can be decimal, for example, 2.5 hours.

Continuous

6. The number of alcoholic beverages that the student drinks in a typical week

Zero, one, two,...

Discrete

5 0
3 years ago
HELP WILL REWARD
Vesna [10]

27.5 Gallons of gas was used by two cars.

Hope this help if not i'm sorry.


7 0
3 years ago
Solve the compound inequality 3x + 4 ≤ 7
Ierofanga [76]

Answer:

x ≤ 1

Step-by-step explanation:

3x+4≤ 7

3x + 4 - 4 ≤ 7 - 4

3x≤3

x ≤ 1

3 0
3 years ago
There is an equilateral triangle, ABC, inscribed in a circle with center D. What is the smallest angle you can rotate triangle A
zavuch27 [327]

Answer:

correct answer is "B"...

6 0
3 years ago
Since all squares are similar, then the ratio of one square’s side to perimeter is proportional to any other’s. If the side of a
kotegsom [21]
The perimeter is 36 yd.

We set up a proportion to represent this situation.  We know that the ratio of the side to the perimeter is the same for every square.  This means that the ratio of the first square, 2/8 is the same for the second one.  We know that the side length is 9, which gives us:

2/8 = 9/x

Cross multiply:
2*x = 8*9
2x = 72

Divide both sides by 2:
2x/2 = 72/2
x = 36
5 0
3 years ago
Read 2 more answers
Other questions:
  • The table shows the relationship between the number of Calories Jacob burns while roller skating and the number of minutes he ro
    9·1 answer
  • Solve by linear combination<br> 2x-y=6<br> x+y=6<br> I need all the work please
    6·1 answer
  • Simplify this power raised to a power: (5^4)4
    9·2 answers
  • A paint color requires the ratio of green paint to yellow paint to be 4:9. a container of this paint has 36 pints of yellow pain
    5·1 answer
  • Solve it !! find zeros <br><img src="https://tex.z-dn.net/?f=%7Bx%7D%5E%7B2%7D%20%20%2B%209x%20%2B%2020" id="TexFormula1" title=
    5·1 answer
  • Can someone help me​
    5·1 answer
  • Adult hippos weigh up to 3300 pounds. If a young hippo weighs 250 pounds, how many pounds might he be expected to gain in his li
    8·1 answer
  • 11 x minus 3 y = negative 17. Negative 4 x + 3 y = negative 18. Negative 7 x = negative 35 Negative 7 x = 35 7 x = negative 35 7
    13·1 answer
  • If y = 7 when x = 6, find y when x= -21.
    11·1 answer
  • Please answer number 6. Thank you.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!