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
suter [353]
3 years ago
15

How to solve for -3x squared + 2y squared + 5xy - 2y + 5x squared - 3y squared when x = 0.5 and y = -1/10??

Mathematics
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

0.44

Step-by-step explanation:

-3x^2 + 2y^2 + 5xy - 2y +5x^2 - 3y^2

Combine like terms

-3x^2 + 5x^2 = 2x^2 2y^2 - 3y^2 = -1y^2

2x^2 - 1y^2 + 5xy - 2y

Now plug in the solutions Note: it is easier if you have all decimals or all fractions (-1/10=-.1

2(0.5)^2 - 1(-0.1)^2 + 5(0.5)(-0.1) - 2(-0.1)

Simplify:

0.5 - 0.01 - 0.25 + 0.2

0.5 + 0.2 - 0.01 - 0.25

0.7 - 0.26

0.44

You might be interested in
Please help me, extra points !!
babunello [35]
Hey ! I know this says extra points but what do you need help on
6 0
3 years ago
If Z= 2+2i, what is z^4?
Dimas [21]

Answer:

assume z is equal to 5.

log(z^4/5) equals log(5^4/5) equals log(5^3) equals 2.096910013.

4 * log(5) - log(5) equals 2.096910013.

they give you the same answer.

this means they're equivalent.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Twice a number plus twice a second number is 310. The difference between the numbers is 55. Find the numbers by writing and solv
Alexus [3.1K]

Answer:

2x+2y=310

x-y=55

multiply seond equation by 2 and adding to first equation

2x-2y=110

add

2x-2y=110

2x+2y=310 +

4x+0y=420

4x=420

divide 4

x=105

sub

x-y=55

105-y=55

minuse 105

-y=-50

mult -1

y=50

the numbers are 105 and 50

4 0
4 years ago
Verona goes to a business that offers tax refund anticipation loans because she really wants to get her money right now and
finlep [7]

Answer:

D look up the question on quizlet to get all of your answers to your lesson :)

Step-by-step explanation:

7 0
4 years ago
Which of the following is a polynomial function in standard form with zeros at –8, –1, and 3?
telo118 [61]
The answer is A because zeros of polynomial functions are found by setting each factor equal to zero and solving for x. The zeros of a function will be the opposite sign of the numbers inside each factor.
8 0
4 years ago
Read 2 more answers
Other questions:
  • What defines a line segment
    8·2 answers
  • How much more interest is owed on $900 for 9 months than for 6 months
    11·1 answer
  • How can you rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations?
    15·1 answer
  • What are all the real zeros
    13·1 answer
  • Write a mathematical sentence that expresses the information given below.
    6·1 answer
  • What is x divided by 3 plus 2 divided by 5 equals one over fifteen
    15·1 answer
  • Simplify.<br> -6x + 8/6 - 3/2x - 1/2 + 5/2x<br> Do not use decimals in your answer.
    12·1 answer
  • A band expects to put 16 songs on their next CD. The band writes and records ​12.5% more songs than they expect to put on the CD
    11·1 answer
  • Fill in the blank to find the y-intercept.<br> (0,_____)
    10·2 answers
  • GIVEN: AB, BC, and AC are congruent
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!