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
pshichka [43]
3 years ago
15

9x^2+4y^2 = 36

Mathematics
2 answers:
Vladimir [108]3 years ago
7 0

Answer:

c.(0, -√5) and (0, √5)

Step-by-step explanation:

The equation represents an ellipse centered on origin (0,0). First, the formula is rearranged to its cannonical form:

\frac{x^{2}}{4} + \frac{y^{2}}{9} = 1

The foci are located in the lines of the semimajor axes, so, the distance between the center and any of the foci is:

c = \sqrt{9 - 4}

c = \sqrt{5}

The foci are located at (0, -\sqrt{5}) and (0,\sqrt{5}). Hence, the answer is C.

Afina-wow [57]3 years ago
6 0
The answer is c
hope this would help you

You might be interested in
Determine whether the pair of actions results in independent or dependent events. Serena picks one marble out of a bag. Then, af
harina [27]

Answer:

B) Independent; the 1st marble selection will not affect the 2nd marble selection.

Step-by-step explanation:

When finding the probability of events in mathematics, we have both independent and dependent events.

Independent events are events that occur when the results of selection of the first events does not affect the results or outcomes of the second events.

Dependent events are the opposite of Independent events. They are events that occur when the results or outcomes obtained from the second events is affected by the results or outcomes from the selection of the first events.

From the question, we can see that the first event is she picked one marble from the bag. The second event is she replaced the marble before picking another marble. By doing this, the total number of possible outcomes for the probabilities of both events remains the same and they are unaffected.

Therefore, we can say that the two events are Independent because the 1st marble selection will not affect the 2nd marble selection.

4 0
3 years ago
Read 2 more answers
Geometry help it’s easy!!!
Ede4ka [16]

Answer:

c

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
"how many different rectangles" can you draw that have a perimeter of 12, 14
amm1812
Perimeter of rectangle = length + length + width + width

To find the combinations, think of two numbers that each multiplied by 2 and added up to give 12 or 14

Rectangle with perimeter 12

Say we take length = 2 and width = 3
Multiply the length by 2 = 2 × 2 = 4
Multiply the width by 3 = 2 × 3 = 6
Then add the answers = 4 + 6 = 10
This doesn't give us perimeter of 12 so we can't have the combination of length = 2 and width = 3

Take length = 4 and width = 2
Perimeter = 4+4+2+2 = 12
This is the first combination we can have

Take length = 5 and width = 1
Perimeter = 5+5+1+1 = 12
This is the second combination we can have

The question doesn't specify whether or not we are limited to use only integers, but if it is, we can only have two combinations of length and width that give perimeter of 12

length = 4 and width = 2
length = 5 and width = 1
--------------------------------------------------------------------------------------------------------------

Rectangle with perimeter of 14

Length = 4 and width = 3
Perimeter = 4+4+3+3 = 14

Length = 5 and width = 2
Perimeter = 5+5+2+2 = 14

Length = 6 and width = 1
Perimeter = 6+6+1+1 = 14

We can have 3 different combinations of length and width





3 0
3 years ago
the moon is about 240,000 miles from earth. what is the distance written as a whole number multiplied by a power of 10.
Komok [63]
2,400,000 is my answer (: I calculated it
4 0
3 years ago
Which transformation shows a reflection across the y-axis?
LUCKY_DIMON [66]
The correct answer is letter A
3 0
3 years ago
Read 2 more answers
Other questions:
  • Help please!!!!!
    9·1 answer
  • Hi everyone do anyone know what is 5+5 equal too thank you so much​
    8·2 answers
  • Danny wants to build a deck with an area of at least 120 square feet. He has space for a length of up to 14 feet, but no more th
    6·1 answer
  • Find the percent of this number: 32% of 25 pages<br><br> Would it be 8% or 32%?
    8·1 answer
  • You were charged $51.50 last month for data usage on your smartphone. Your data plan charges a monthly fee of $20 plus $2.50 for
    13·2 answers
  • -1/12d=-3<br> what is the answer to the equation --&gt; (d)
    12·1 answer
  • Problem Page
    15·1 answer
  • A function, F(x), is shown below.
    10·1 answer
  • Log(2x+5)+10=13 SHOW WORK PLEASE
    13·1 answer
  • solve 49x + 9 equals 49x + 83. does an equation have one solution, no solution, or infinitely many solutions? write two equation
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!