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
Studentka2010 [4]
3 years ago
5

Expand. Your answer should be a polynomial in standard form. (3a^2 – 1)(-3a² + 5) =

Mathematics
1 answer:
34kurt3 years ago
4 0

Answer:-9a^4+18a^2-5

(3a  

2

−1)(−3a  

2

+5)

=3a  

2

(−3a  

2

+5)−1(−3a  

2

+5)

​  

​  

 

=−9a  

4

+15a  

2

+3a  

2

−5

=−9a  

4

+18a  

2

−5

​  

You might be interested in
A man standing at point A walks 1 mile south, 3 miles east, 5 miles north, and 7 miles west to reach point B. The length of line
joja [24]

Answer: √32

Step-by-step explanation: so the displacement is north 4 and west 4 and it becomes a right triangle so the hypotenuse is the distance for segment AB

So Drawn out should like straight lines up,down,left,and right. So east is positive while west is negative same for North(+) and South(-)

I recommend sticking with 2 directions first. Starting with north and south right. First you go south 1 mile but then you go north 5miles in math terms

-1+5=4 or down one is one less than 5

Same for east and west. 3+-7 = -4

So we went positive 4 miles up and 4miles to the left

So (-4)^2+4^2= hypotenuse or AB segment in this case

Download pdf
3 0
3 years ago
If a base of a triangle if 14.2 yd, and the area is 63.9 yd2 (squared), what is the height?
Arlecino [84]
4.2 because u do the substatition and the formula
7 0
3 years ago
Which of the following situations can be described by the equation 2x – 4 = 10?
chubhunter [2.5K]

Step-by-step explanation:

Add 44 to both sides.

2x=10+4

2x=10+4

2 Simplify 10+410+4 to 1414.

2x=14

2x=14

3 Divide both sides by 22.

x=\frac{14}{2}

x=

2

14

4 Simplify \frac{14}{2}

2

14

to 77.

x=7

x=7

Done

8 0
3 years ago
Sonja made 20 Hamburgers.Each Hamburger contained 1/4 pound of ground Beef.
Illusion [34]
1/4 per hamburger, 4 hamburgers=1 pound 20/4= B. 5 pounds
3 0
3 years ago
How do you simplify sin2x=cosx
torisob [31]
          sin(2x) = cos(x)
2sin(x)cos(x) = cos(x)  Expand sin(2x).
     2cos(x)      2cos(x) Divide 2cos(x) on each side.
            sin(x) = ¹/₂
    sin⁻¹[sin(x)] = sin⁻¹(¹/₂)   Use sin⁻¹(x) on each side.
                   x = 30, 150  Find the answer.
4 0
3 years ago
Other questions:
  • ABC represents a race path. Find the total distance of the race. Round your answer to the nearest meter.
    12·1 answer
  • Math question answer a and b
    7·2 answers
  • anna is watching a space shuttle launch 6 miles from cape canaveral in Flordia. When the angle of elevation from her viewpoint t
    15·1 answer
  • Lisa says that 43 is a 2-digit odd number that is composite us she correct
    11·2 answers
  • 420÷14 show picture please
    14·2 answers
  • How do you solve (2y^2)^3 x 2y^3
    8·2 answers
  • 9) When a whole number is multiplied by a decimal smaller than one, what can you conclude about the result?
    8·1 answer
  • Is this reasoning valid or not? If it is July then it is summer, and it’s not July therefore it’s not summe.
    13·1 answer
  • Eva has put down three rows of tiles across the width of the kitchen. Each square tile is 17.5 cm wide. Between the tiles she pu
    13·1 answer
  • There are 81 athletes who joined a parade. Four-ninths of them are basketball players. How many basketball players joined the pa
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!