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
salantis [7]
3 years ago
15

I need this answered in ONE minute

Mathematics
1 answer:
Helen [10]3 years ago
7 0

Answer:

x^4 + 4x^3 + 6x^2 + 7x + 2

Step-by-step explanation:

We are asked to multiply the given polynomials.

(x^ 2 + 3x + 1) \times (x^2 + x + 2)

Multiply each term of the first polynomial to each term of the second polynomial.

x^ 2  \times (x^2 + x + 2) = x^4 + x^3 + 2x^2

3x  \times (x^2 + x + 2) = 3x^3 + 3x^2 + 6x

1 \times (x^2 + x + 2) =  x^2 + x + 2

Add the results

(x^4 + x^3 + 2x^2) + (3x^3 + 3x^2 + 6x) + ( x^2 + x + 2)

Combine the like terms

x^4 + 4x^3 + 6x^2 + 7x + 2

The answer is written in descending powers of x.

You might be interested in
Please help asap!!! i dont understand it
pshichka [43]

Answer:

a

Step-by-step explanation:

A perpendicular bisector, intersects a line at its mid point and is perpendicular to it.

Calculate slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 7, 1) and (x₂, y₂ ) = (9, 13)

m = \frac{13-1}{9-(-7)} = \frac{12}{9+7} = \frac{12}{16} = \frac{3}{4}

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{\frac{3}{4} } = - \frac{4}{3} ←  slope of perpendicular bisector

Given endpoints (x₁, y₁ ) and (x₂, y₂ ) then the midpoint is

(\frac{x_{1}+x_{2}  }{2}, \frac{y_{1}+y_{2}  }{2} )

using (x₁, y₁ ) = (- 7, 1) and (x₂, y₂ ) = (9, 13) , then

midpoint = ( \frac{-7+9}{2}, \frac{1+13}{2} ) = ( \frac{2}{2}, \frac{14}{2} ) = (1, 7 )

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - \frac{4}{3} , then

y = - \frac{4}{3} x + c ← is the partial equation

To find c substitute the midpoint (1, 7) into the partial equation

7 = - \frac{4}{3} + c ⇒ c = \frac{21}{3} + \frac{4}{3} = \frac{25}{3}

y = - \frac{4}{3} x + \frac{25}{3} ← equation of perpendicular bisector

7 0
3 years ago
Find the value of the expression. (6.885−0.365)÷2+1.44.
EleoNora [17]

Answer:

4.7

Step-by-step explanation: I bet your family tree is a cactus because everyone on it is a pain/your like the first slice of bread everyone touches you but nobody wants you

4 0
3 years ago
Read 2 more answers
II. Evaluate the following expressions.
RideAnS [48]

Answer:

6. 62

7. 72

8. 78

9. 57 = -4 ??

10. ??

Step-by-step explanation:

6. 7*8 = 56, 56+6 = 62

7. 25+11 = 36, 36*2 = 72

8. 102-16-8 = 78

8 0
3 years ago
Read 2 more answers
A bank employee notices an abandon checking account with a balance of $360 the bank charges an $5 monthly fee for the account. E
raketka [301]
The function will be
y=360-5x
where y is the balance, and x is the number of month.
The raph will be a line on the xy-plain which starts at the point (0, 360), and end in the point (72, 0).
Hope it helps.
4 0
3 years ago
Which equation has a slope of 1/2 and passes through the point (1.2)?
Naya [18.7K]

Answer:

The answer is

<h2>x - 2y + 3 = 0</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of a line given a point and slope we use the formula

y - y1 = m(x - x1)

where

m is the slope

( x1 , y1) is the point

From the question the point is ( 1 , 2) and the slope is 1/2

Substitute the values into the above formula and solve for the equation

That's

<h3>y - 2 =  \frac{1}{2} (x - 1) \\ 2y - 4 = x - 1 \\ x - 2y - 1 + 4 = 0</h3>

We have the final answer as

<h3>x  - 2y + 3 = 0</h3>

Hope this helps you

8 0
3 years ago
Other questions:
  • List the factors for this number<br><br> 17
    8·1 answer
  • Round to 2 SF<br> 0.00706<br> please
    13·2 answers
  • On Monday joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. On Tuesday he bought 5 cups of coff
    6·1 answer
  • Evaluate m/n, when m=54 and n=9
    15·2 answers
  • Find the value of 5.8 ÷ 1.2.<br> A. 6.96<br> B. 4.6<br> C. 5.24<br> D. 4.83
    15·1 answer
  • Help please ASAP (7th grade math)
    12·2 answers
  • Solve the system using multiplication for the linear combination method.
    15·1 answer
  • Solve this system of equations using the Substitution method.<br><br> 3x + y = -2<br><br> y = 2x + 3
    6·1 answer
  • I need help with my math homework
    8·2 answers
  • Hey does any body know how i can approximate 13 like this had this homework but it got late on me.​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!