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
arsen [322]
3 years ago
7

what are the roots of the polynomial equation x3-7x=6x-12? Use a graphing calculator and a system of equations.

Mathematics
2 answers:
kvasek [131]3 years ago
5 0

Answer:

B

Step-by-step explanation:

Masteriza [31]3 years ago
3 0
X3-7x=6x-12
x3-7x-6x+12=0
x3-13x+12=0
(x-1)(x2+x-12)=0
Calculate delta of the second bracket:
delta = 1+4*12=49
sqrt(delta)=sqrt(49)=7
x_1=(-1-7)/2=-4
x_2=(-1+7)/2=3

(x-1)(x+4)(x-3)=0

Answear:
Roots: x=1, x=-4, x=3.
You might be interested in
Without measuring, how can you determine whether two sides of a polygon are congruent?
Alinara [238K]
Ow... this geometry is sure hard!!
.
Wait a second. Nope.
.
TWO SIDES!!
.
ITT!!
.
CONVERSE ITT!!
.
Converse Isosceles Triangle Theorem!
.
Look at the picture I attached.
.
Two angles equal... THE SIDES ADJACENT TO IT EQUAL!!
.
PERFECTO!!
.
Hope I helped!!

Source: I am learning Honors Geometry, near end of course.

7 0
3 years ago
I really need help for this geometry question, I would appreciate any help thank you.
Vsevolod [243]
You know that you have the Opposite side and the Adjacent side. therefore you would use Tangent (T= O/A)
because you are finding the angle you would go Tan^-1(12÷20) =31°
it is 12÷20 because O/A and the 12 is the opposite side therefore It would be O and 20 is the adjacent side therefore equaling 20 so O/A = 12/20
Your answer is 31°
8 0
2 years ago
You work two jobs. You earn $9.45 per hour as a salesperson and $11.34 per hour stocking shelves. Your combined earnings this mo
konstantin123 [22]

Answer:

11.34x + 9.45y = 141.75

y = (141.75 - 11.34x)/9.45

y = -1.2x + 15

Draw a straight line only in the first quadrant connecting these points:

(0,15)

(12.5,0)

6 0
3 years ago
Solve the differential equation.<br><br> (y^2 + xy^2)y' = 1
stira [4]
(y^2 + xy^2)y' = 1  \ \Rightarrow\ (y^2 + xy^2)\frac{dy}{dx}= 1  \ \Rightarrow\\ \\&#10;y^2(1 + x) \frac{dy}{dx} = 1  \ \Rightarrow\ y^2 dx = \frac{dx}{1 + x}\ \Rightarrow \\ \\&#10;\int y^2 dx =\int \frac{dx}{1 + x} \ \Rightarrow\ \frac{1}{3}y^3 = \ln|1+x| + C\ \Rightarrow \\ \\&#10;y^3 = 3 \ln|1 + x| + 3C\ \Rightarrow\ y = \sqrt[3]{3\ln|1+x| + K},\ \text{where $K = 3C$}&#10;
6 0
3 years ago
What expressions are equivalent to -2.5 (1 - 2n) - 1.5n?
jok3333 [9.3K]

Answer:

C. -2.5 - 6.5n

Step-by-step explanation:

i just think thats the answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • The primeter of a rectangle is 53 meters. The length is 2.3 meters longer than the width, w. Write and solve an equation to ind
    15·1 answer
  • So me and my friend were arguing about this earlier. Say that you bought a raffle ticket for $1 and the prize is $512. If you wo
    6·1 answer
  • How many solutions exist for the given equation?
    13·1 answer
  • Jason multiplies a number by 100. The thousands digit of the product is 10 times its hundreds digit.
    6·1 answer
  • Mrs imran owns two plots of equal worth. The property tax rate is 2%.if she paid Rs 15000 as the property tax last year, what is
    7·2 answers
  • What is the length of bc?
    14·1 answer
  • Bradley and Melissa share $2,000 in the ratio 2:3. a. How much money did Bradley receive? b. How much money did Melissa receive.
    10·2 answers
  • If a=x+y and b=x-y show that (a+b)2=4x2​
    8·1 answer
  • Write the inequality for the linear inequality graphed below. You can
    6·1 answer
  • What is the slope of the equation y = 4x - 3?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!