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
7

Please answer ASAP. The question is down below

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
3 0

Answer:  1) D      2) B

<u>Step-by-step explanation:</u>

1) The denominator cannot equal zero, Factor the denominator to find the zeros.  n³ - 4n² + 3n = 0

           n(n - 3)(n - 1) = 0

       n=0  n-3=0   n-1=0

       n=0    n=3      n=1

2) In order to be a rational expression, it must be in the form \dfrac{a}{b} where both a and b are integers.

Since \sqrtb\sqrt b is irrational and not an integer, then the expressions containing an irrational term <em>after simplified</em> cannot result in an integer.

Therefore, options <em>(i)</em> and <em>(iv)</em> are not rational expressions.

Option <em>(iii)</em> contains b as an exponent.  Since there is no information about b, it could be a fraction, which means it could be an irrational number.

You might be interested in
Sarah is pouring soda into papercups. She has 4.5 liters of soda. If each papercup holds 0.25 liters, how many papercups will sh
faltersainse [42]

Answer:

18

Step-by-step explanation:

4.5 liters / .25 liters/pcup = 18 pcups

5 0
2 years ago
For Exercises 19-28, find the angle measures. Use the diagram of the
andreev551 [17]

Answer:Side lengths: 2cm, 3cm, 4cm ... or you. F5. Angle measures: 30, 60, 90. SE. Isosceles. D6. Angle measures: 20: ... Use the diagram of the ... LJVK and Z KVL are called adjacent angles because they have a common vertex and a common side.

Step-by-step explanation:

5 0
3 years ago
Which graph represents the compound inequality?<br> n&lt;-2 or n &gt; 4
Marina86 [1]
Yes the answer is C. -2 to the left with open circle and 4 to the right with closed circle
5 0
2 years ago
Please can anyone help me please​
Step2247 [10]
4.5, 4, 3.5, 3, 2.5, 2 and use the pencil and ruler, love a bit of MathsWatch
7 0
3 years ago
Read 2 more answers
60 - 3d + 20 - 6 = 4d
iragen [17]
60-3d + 20-6 =4d
74-3d =4d
-3d =4d -74
-7d = -74
D=74/7
4 0
3 years ago
Read 2 more answers
Other questions:
  • He shorter leg of a 30°-60°-90° triangle is 6. what is the length of the hypotenuse?
    11·1 answer
  • Simplify.<br> x 3 ÷ x 5 <br> x2<br> x8<br> x-8<br> x-2
    14·2 answers
  • There are 2 seats on the left side on each row and 3 seats on the right side there are 90 seats on the right side of the plane h
    15·1 answer
  • 12 cups is greater or less than 9 fluid ounces
    15·2 answers
  • You travel 40mph in a car and then travel 70mph in a train. If the total trip takes 13 hours and you travel 760 miles how far di
    11·1 answer
  • Help me in this two pls
    7·1 answer
  • If cos x=−6/7, and 90°
    12·1 answer
  • 7. Which of the following is equal to<br>AnB ?​
    12·1 answer
  • A small bag has 8 black beans, 5 white beans, and 12 red beans. Find the probability of picking a red then a black bean if you d
    10·2 answers
  • Complete the square to find<br> the vertex of this parabola.<br> x2 + 10x – y + 15 = 0<br> ([?], [])
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!