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
Brut [27]
3 years ago
13

What Is the value of a 2xSquared -6x -20=0

Mathematics
1 answer:
kirza4 [7]3 years ago
8 0

Answer:

-22

Step-by-step explanation:

I think this is correct, I don't really get why there is a zero...

You might be interested in
How to solve X^4-19x^2+48=0
ZanzabumX [31]
Two numbers that add up to -19 and multiply to 48 are -16 and -3:

(x^4-19x^2+48)=0\\(x^2-16)(x^2-3)=0\\(x+4)(x-4)(x^2-3)=0

So, the solutions come from each parentheses:  x+4=0, x-4=0, and x^2-3=0.

x+4=0
x = -4

x-4=0
x = 4

x^2-3=0
x^2 = 3
x = +/- √3

So, the solutions are -4, -√3, √3, and 4.
4 0
3 years ago
Picking up a hot coal is wich type of heat transfer
NeTakaya
A) conduction. because you are conducting heat from the coal to your hand 
8 0
3 years ago
Read 2 more answers
A pyramid is 1 3 inch taller than it is wide. Let h=height. Let w=width. Complete the table, and graph h=w+ 1 3.
ivann1987 [24]

Answer:

Step-by-step explanation:

o,9.o,0

5 0
3 years ago
What is the numerator in the fraction 64/72
Elodia [21]
The correct answer is 64
4 0
2 years ago
Read 2 more answers
An arithmetic sequence "a" starts with 84, 77 define "a" recursively
sweet [91]

Answer:

First, let's define an arithmetic sequence:

In an arithmetic sequence, the difference between any two consecutive terms is always the same.

Then we can write it in a general way as:

aₙ = a₁ + (n - 1)*d

where:

aₙ is the n-th term of the sequence.

d is the constant difference between two consecutive terms.

a₁ is the initial term of our sequence.

Now in this case we know that the first terms of our sequence are:

84, 77, ...

Then we know the initial term of our sequence:

a₁ = 84.

And the value of d can be calculated as:

d = a₂ - a₁ = 77 - 84 = -7

Then the general way of writing this sequence is:

aₙ = 84 + (n - 1)*(-7)

And the recursion relation is:

aₙ = aₙ₋₁ - 7

So for the n-th term, we must subtract 7 of the previous term.

4 0
3 years ago
Other questions:
  • a 3 pound pork loin can be cut into 10 pork chops of equal weight. how many ounces are in each pork chop? please show your work
    11·2 answers
  • What is the definition of ratio table
    15·1 answer
  • A student number system for a county requires that the student number be 5 characters.
    5·1 answer
  • Whats 10 percent higher than 39
    9·1 answer
  • a teacher is shouting she shuts the door she shuts the windows but forgets to shut something what is it? i know but do you know
    13·1 answer
  • 1982 2016 how many year
    5·2 answers
  • E
    13·1 answer
  • Without doing any calculations, compare Expression A to Expression B. ( 34 + 25 ) ÷ 1 4 34 + 25 Which statement is true? A. Expr
    5·1 answer
  • Find the value if x=2+root3
    7·1 answer
  • The mean age of Mr Jasmi,Miss Haslinda and their three children is 38 years. The mean age of their three children is 18 years. C
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!