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
vesna_86 [32]
2 years ago
7

Write story problem that can be solved by finding the sume of 506.211 and421.809 then solve the problem

Mathematics
1 answer:
makkiz [27]2 years ago
4 0

Answer:

gabby have 506.211 letter of oil and her friend maya added her 421.809 oil to gabbys.

what is the total of gabbys oil?

You might be interested in
How does the 5 in the tens place<br> compare to the 5 in the ones place?<br> 3,055
morpeh [17]

Answer:

The 5 in the tens place has more value then the 5 in the ones place

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Classify each conic section and write its equations in standard form. Show work.
svp [43]

Answer:

The conic is ellipse of equation (x - 1)²/22 + (y + 4)²/44 = 1

Step-by-step explanation:

* Lets revise how to identify the type of the conic  

- Rewrite the equation in the general form,  

 Ax² + Bxy + Cy² + Dx + Ey + F = 0  

- Identify the values of A and C from the general form.  

- If A and C are nonzero, have the same sign, and are not equal  

 to each other, then the graph is an ellipse.  

- If A and C are equal and nonzero and have the same sign, then  

 the graph is a circle  

- If A and C are nonzero and have opposite signs, and are not equal  

then the graph is a hyperbola.  

- If either A or C is zero, then the graph is a parabola  

* Now lets solve the problem

The equation is 4x² + 2y² - 8x + 16y - 52 = 0

∴ A = 4 and C = 2 ⇒ same sign and different values

∴ The equation is ellipse

* The standard form of the ellipse is

  (x - h)²/a² + (y - k)²/b² = 1

- Lets try to make this form from the general form

- Group terms that contain the same variable, and move the

  constant to the opposite side of the equation

∴ (4x² - 8x) + (2y² + 16y) = 52

- Factorize the coefficients of the squared terms

∴ 4(x² - 2x) + 2(y² + 8y) = 52

- Complete the square for x and y

# To make completing square

- Divide the coefficient  of x (or y) by 2 and then square the answer

- Add and subtract this square number and form the bracket of

 the completing the square

# 2 ÷ 2 = 1 ⇒ (1)² = 1 ⇒ add and subtract 1

∴ 4[(x² - 2x + 1) - 1] = 4(x² - 2x + 1) - 4

- Rewrite as perfect squares ⇒ 4(x -1)² - 4

# 8 ÷ 2 = 4 ⇒ (4)² = 16 ⇒ add and subtract 16

∴ 2[(y² + 8y + 16) - 16] = 2(y² + 8y + 16)² - 32

- Rewrite as perfect squares ⇒ 2(y + 4)² - 32

∴ 4(x - 1)² - 4 + 2(y + 4)² - 32 = 52

∴ 4(x - 1)² - 4 + 2(y + 4)² = 32 + 4 + 52

∴ 4(x - 1)² + 2(y + 4)² = 88 ⇒ divide all terms by 88

∴ (x - 1)²/22 + (y + 4)²/44 = 1

8 0
2 years ago
An ordered pair that has a negative x-coordinate and a positive y-coordinate (- , + ) would be plotted in which quadrant? (Remem
gladu [14]
The quadrant this would be in is II
4 0
3 years ago
Lily has 4 fewer ribbons than Dora. Lily has 7 ribbons. How many ribbons does Dora have
zlopas [31]
Dora would have 11 ribbons
7 0
3 years ago
Read 2 more answers
PLEASE PLEASE HELP IF YOU KNOW!! THANK YOU
Vladimir [108]
I'm guessing this is what the question is asking?

5 0
3 years ago
Other questions:
  • A cell phone plan costs $200 to start. Then there is a $50 charge each month. Write an equation relating the cost, y, and then n
    11·2 answers
  • What is the measure of angle 7?
    5·1 answer
  • SUR TUS
    15·1 answer
  • Use compatible number to find two estimates<br><br> 17 divided by 1,569
    7·2 answers
  • What is 8/10 x 8/21
    12·2 answers
  • I need fast help with step by step<br> <img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5E2_1%20%7B%5Cfrac%7B3x-1%7D%7Bx%2B1%7D
    7·1 answer
  • A card is selected at random from a standard deck. find each probability. randomly selecting a club or a 3
    10·1 answer
  • 75 is what percent of 350
    8·2 answers
  • Answer the picture below!!!
    6·1 answer
  • ANSWER ASAP PLZ
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!