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
lions [1.4K]
3 years ago
5

PLEASE HELP!!!!!! What signals you that factoring by grouping is the best method to use when factoring a problem? How would you

know if it is factorable or prime?
Mathematics
1 answer:
ElenaW [278]3 years ago
3 0
Normally when there is similar terms and when you have to figure out if it is factorable or prime you must first begin factoring it and if it does not work it is prime.
Hope this helps, ask me if you have any questions.
You might be interested in
HELP ME WHATS THE VALUE OF X?
Y_Kistochka [10]

Answer:

Step-by-step explanation:

Total sum of degrees of a Triangle is 180 deg

Than: 8x-7 + x +7 + 2x + 15 = 180

11x + 15 = 180

x = (180-15) / 11  =15

Answer: 15

8 0
2 years ago
Write an explicit formula for the An, and the n^th term of the sequence 24,-12,6,....
Annette [7]

Answer:

T_n =  -48* (-\frac{1}{2})^{n}

Step-by-step explanation:

Given

24, -12, 6,...

Required

Write a formula

The above sequence shows a geometric sequence because:

r = \frac{-12}{24} = \frac{6}{-12} = -\frac{1}{2} -- common ratio

The equation is determined using:

T_n = ar^{n-1}

Where

a = 24

Substitute values for a and r

T_n = 24* (-\frac{1}{2})^{n-1}

Apply law of indices:

T_n = 24* (-\frac{1}{2})^{n} * (-\frac{1}{2})^{-1}

T_n = 24* (-\frac{1}{2})^{n} * 1/(-\frac{1}{2})

T_n = 24* (-\frac{1}{2})^{n} * 1*-2

T_n =  1*-2*24* (-\frac{1}{2})^{n}

T_n =  -48* (-\frac{1}{2})^{n}

<em>The above represents the explicit formula</em>

7 0
3 years ago
Given f(x)=x^2-4x+5, what's the value when f(2)
Reil [10]

If you were to replace the x's with 2, your equation would turn into:

(2)^2-4(2)+5

From there, you'd just solve.

4-8+5=1

Your answer would be 1.

7 0
3 years ago
In the triangle below, what is the length of the side opposite the 30 degree angle?
Vitek1552 [10]

Answer:

A. 3/2

Step-by-step explanation:

To find the lenght of the side opposing the 30° angle, you need to use trigonometry, since it's a right-angled triangle. You have your 30° angle and you have the side beside : therefore, you can use the sine :

sin(30) x 3 = ?

0,5 x 3 = ?

1,5 = ?

1,5 = 3/2

5 0
3 years ago
Help!! plz help to solve!
artcher [175]
You can solve all of these by using the distance formula. I have shared it below. 


4 0
3 years ago
Other questions:
  • The numbers 9, 40, and c are a Pythagorean triple. What is the value of c?
    15·1 answer
  • How Can I alive this complex problem
    6·1 answer
  • If trap is an isosceles trapezoid, what is the value of x
    10·1 answer
  • Please give me the answer for x + 4 equals 7
    8·2 answers
  • Kale works in a packaging factory that has 900 employees. By the end of each day, they manage to 3.2*10
    6·1 answer
  • Help me out in this problem please
    14·1 answer
  • What is the value of the expression?
    15·1 answer
  • Write the percentage shown in the model
    6·1 answer
  • Angle B and angle C are complementary. If angle B is five times the size of angle C which equation can be used to find the measu
    8·1 answer
  • Factor 9w+ 72 using the GCF
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!