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
katen-ka-za [31]
3 years ago
7

From the sum of 3a^2−ab−2b^2 and 2a^2+5ab−3b^2 subtract a^2−3ab−4b^2

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0
(3a^2-ab-2b^2) + (2a^2+5ab-3b^2) - (a^2-3ab-4b^2)

First we distribute the negative throughout the last polynomial:

(3a^2-ab-2b^2) + (2a^2+5ab-3b^2) + (-a^2+3ab+4b^2)

Combine like terms:

4a^2 + 7ab - b^2
You might be interested in
A square pyramid has a volume of 20 cubic feet and a base length of 5 feet. What is it's height?
erastova [34]

Answer:

The height of the pyramid is 2.4\ ft

Step-by-step explanation:

we know that

The volume of a square pyramid is equal to

V=\frac{1}{3}b^{2}h

we have

V=20\ ft^{3}

b=5\ ft

substitute and solve for h

20=\frac{1}{3}(5)^{2}h

60=(25)h

h=60/(25)=2.4\ ft

5 0
3 years ago
What is the domain and range of the relation [(1, -8), (-7,8), (-3, 7). (-3, -5]?​
Nadusha1986 [10]

Step-by-step explanation:

domain = {-7, -3, 1}

range ={-8, -5, 7, 8}

6 0
3 years ago
This is a payslip of Mr. Dube a48 years old male employee of a major clothing company​
DiKsa [7]

Answer:

where's the payslip dear

8 0
3 years ago
Find an equation for the line tangent to the circle x^2 +y^2=25 at the point (3, -4)
Lostsunrise [7]
Hello : 
the center of this cercle is : O( 0, 0)
calculate the slope  m of the line : OA    .. A (3,-4)
m= (yA - yO) / (xA- xO) 
m = (-4-0)/(3-0)
m= -4/3
if : k the slope of the tangent : k×m = -1   (the tangent perpendiclar of : OA)
k× (-4/3) = -1
k = 3/4
an equation of this tangent is : y - (-4) = (3/4)(x-3)

7 0
3 years ago
Plz help I really need it 15 points
Ivenika [448]

Answer:

I'm pretty sure its 40

hope I helped

6 0
3 years ago
Read 2 more answers
Other questions:
  • The sum of two consecutive integers is 145. find the integers.
    9·1 answer
  • I need help with this question.
    14·1 answer
  • 6x−7=536x−7=53 helppppp
    5·2 answers
  • Use the properties of exponents to rewrite the expression <br> 3•b•b•b•b•b•c•c•c•c•c
    14·2 answers
  • Which of the following expressions could be used to represent "the difference between -17 and -8"?
    14·1 answer
  • The diagram represents an 11 cm by 6 cm rectangle.
    5·1 answer
  • Simplify the expression (-7 + 2)(8) =​
    11·2 answers
  • Find the surface area of the rectangular prism.
    13·1 answer
  • What percent of 70 equals 21
    9·2 answers
  • Which of the following describes an example of mutually exclusive outcomes A and B for throwing a single 6-sided
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!