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
10

What is the ‘r’ value of the following sequence: 6, 18, 54, 162…?

Mathematics
1 answer:
goblinko [34]3 years ago
5 0
R = 3
6x3=18
18x3=54
54x3=162 ...
You might be interested in
What is the slope of a line perpendicular to the line whose equation is
garik1379 [7]

Answer:

4x

Step-by-step explanation:

6 0
3 years ago
What is the ratio equivalent to 3/10
Dafna1 [17]
Here, 6/20 9/30 etc
6 0
3 years ago
Find the nature of the root
GREYUIT [131]

Answer:

1) Real and same.

2) Real and distinct

3) Real and distinct

4) Real and distinct

5) Real and distinct

6) Real and distinct

7) Real and distinct

8) Real and distinct

Step-by-step explanation:

If a quadratic equation is in the form of ax² + bx + c = 0, then Discriminant of the equation D = b² - 4ac, which governs the nature of roots the equation has.

If D > 0, then there will be two different real roots.

If D = 0, then two same and real roots.

If D < 0, then two distinct but imaginary roots.

Now, 1) x² + 6x + 9 = 0 has D = 6² - 4 × 9 × 1 = 0. So, there will be two same and real roots.

2) 5x² - x = 4x² + 2

⇒ x² - x - 2 = 0

It has D = (-1)² - 4 × 1 × (-2) = 9. Therefore, the roots will be two distinct and real.

3) \frac{2}{x} + \frac{3}{x} = x - 4

⇒ 5 = x² - 4x

⇒ x² - 4x - 5 = 0.

So, D = (-4)² - 4 × (1) × (- 5) = 36. So, the equation has two real and distinct rools.

4) x(x - 5) = 4(5 - x)

⇒ x² - x - 20 = 0

Hence, D = (-1)² - 4 × 1 × (-20) = 81

So, the roots will be real and distinct.

5) x² + 7x + 1 = 0 has D = 7² - 4 × 1 × 1 = 45

So, the roots will be real and distinct.

6) 2x² + 9x + 3 = 0, has D = 9² - 4 × 2 × 3 = 57.

Hence, the roots will be real and distinct.

7) 5x² - 6 = 13x

⇒ 5x² - 13x - 6 = 0

So, D = (-13)² - 4 × 5 × (-6) = 289

So, the roots will be real and distinct.

8) x² - x = 3(x + 7)

⇒ x² - 4x - 21 = 0

It has D = (-4)² - 4 × 1 × (-21) = 100

So, the roots will be real and distinct. (Answer)

6 0
3 years ago
Which represents the function shown in this table?
aivan3 [116]

The answer would be c

Step-by-step explanation:

7 0
3 years ago
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Mashcka [7]

Answer:

6.1 ⋅ 10^{3}

Step-by-step explanation:

i think smh

7 0
3 years ago
Read 2 more answers
Other questions:
  • Ling wants to save $87 for tickets . If she has $23 now and will save $4 per week , how long will it take her to get enough mone
    15·1 answer
  • Round 254.47 to the nearest tenth
    9·2 answers
  • Two rectangles are similar. One has a length of 14 cm and a width of 9 cm, and the other has a width of 3 cm. Find the length of
    6·1 answer
  • Pls help!!!! Match all of the angle and arc measures with the appropriate letter ? A through H
    14·1 answer
  • HELP!! i will vote brainlest answer
    11·1 answer
  • In Sunday's Super Bowl, Tampa Bay ended up winning over Kansas City. With the win, Tampa Bay's Quarterback Tom Brady now has 7 C
    11·2 answers
  • 2|2x-6|=20<br><br> How the hell do you do this guys :(
    15·2 answers
  • What is the value of 8 in 24.387
    7·2 answers
  • Pierce is making a rectangular frame for a photo collage that has perimeter of
    14·1 answer
  • Kevin has 2 apples and john took 1 how much apples does kevin have
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!