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lubasha [3.4K]
3 years ago
9

-12 is equal to a number subtracted from 3

Mathematics
2 answers:
kirill [66]3 years ago
7 0
So lets break this up for you.

-12 is equal to (-12=) a number (x) subtracted from 3 (-)(3)

so the the complete answer is :

-12=x-3
tamaranim1 [39]3 years ago
3 0
3 - 15  =  -12
so that is your answer
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Please help me with these problems
S_A_V [24]

Answer:

1.a=2

2.  C  x=2  and x=-3

Step-by-step explanation:

The standard form for the quadratic function is  

ax^2 +bx+c

so  we need to rewrite the function to be in this form

2x^2 -10 = 7x

Subtract 7x from each side

2x^2 -7x-10 = 7x-7x

2x^2 -7x-10 = 0

a =2, b= -7  c=-10


2.  The quadratic formula is

-b ± sqrt(b^2 -4ac)

----------------------------

2a


2x^2 + 2x=12

Lest get the equation in proper form

2x^2 + 2x-12 = 12-12

2x^2 +2x-12 =0

a=2  b=2 c=-12

Lets substitute what we know

-2 ± sqrt(2^2 -4(2)(-12))

----------------------------

2(2)

-2 ± sqrt(4+96)

----------------------------

2(2)

-2 ± sqrt(100)

----------------------------

4

-2 ± 10

----------------------------

4

-2 + 10               -2-10

-----------   and  --------------

4                             4

8/4   and -12/4

2  and -3

8 0
3 years ago
Please help me I will give you extra points and whoever the first one to answer I mark you with the brain thing. 6
Natali5045456 [20]

Answer:

c.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Can someone. Please help me please
zalisa [80]

Answer:

  • B. Always irrational

Step-by-step explanation:

The difference of the rational and and irrational number is always an irrational number.

Correct choice is B

5 0
3 years ago
Read 2 more answers
A,B, and C are polynomials, where a = n, b=2n+6, and c=n^2-1. What id AB - C in simplest form
Marina CMI [18]
N^2 + 6n + 1
In simplest form
9 0
3 years ago
6) Name all factors of x3 – 3x2 – 10x.
Kruka [31]

Answer:

A. x

C. x – 5

D. x + 2

Step-by-step explanation:

From the question above, we are asked to find the factors of an algebraic expression that is given as:

x³ - 3x² - 10x

We would use the step of factorisation

Step 1

x(x² - 3x- 10)

The first factor of the algebraic expression has been obtained = x

Step 2

We factorise x² - 3x - 10

x² +2x - 5x - 10

(x²+2x) - (5x - 10)

x(x + 2) -5(x + 2)

(x + 2)(x - 5)

Step 3

x³ - 3x² - 10x

x(x² - 3x- 10)

(x)(x + 2)(x - 5)

Therefore, the factors of the algebraic expression are:

(x), (x + 2), (x - 5)

3 0
3 years ago
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