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Dmitrij [34]
3 years ago
9

A _____ is a point that helps to define an ellipse. ...?

Mathematics
2 answers:
Paha777 [63]3 years ago
8 0
I would say focus. I hope this helps.
mezya [45]3 years ago
3 0
Foci.
An ellipse is defined by two focal points.
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Please help me I’m begging you, ignore my answer unless I’m right. I don’t know how to do this please help
notka56 [123]

Answer:

What is the question?

Step-by-step explanation:

4 0
3 years ago
Which system of equations below has infinitely many solutions? y = –3x 4 and y = –3x – 4 y = –3x 4 and 3y = –9x 12 y = –3x 4 and
Flura [38]

the equations y = –3x + 4 and 3y = –9x + 12 have infinitely many solutions. option B is correct.

<h3>What is the linear system?</h3>

It is a system of an equation in which the highest power of the variable is always 1. A one-dimension figure that has no width. It is a combination of infinite points side by side.

Condition for the parallel lines.

L1,  ax + bx + c = 0

L2, dx + ey + f = 0

If \rm \dfrac{a}{d} = \dfrac{b}{e} = \dfrac{c}{f} then lines have infinitely many solutions.

<h3>Which system of equations below has infinitely many solutions?</h3>

y = –3x + 4 and 3y = –9x + 12

On comparing we have

a = -3 , b = 1, and c = 4

d = -9 , e = 3, and f = 12

Then their ratio will be

\rm \dfrac{1}{3} = \dfrac{-3}{-9} = \dfrac{4}{12}\\\\\rm \dfrac{1}{3} = \dfrac{1}{3} = \dfrac{1}{3}

Hence  y = –3x + 4 and 3y = –9x + 12 have infinitely many solutions.

Thus the option B is correct.

More about the linear system link is given below.

brainly.com/question/20379472

7 0
3 years ago
Gabriella drives her car 340 miles and averages a certain speed. If the average speed had been 8 mph less, she could have travel
Elena L [17]
Most likely would be 42 because 340-8=332 then 332 divided by 8=41.5 and if you round it is 42.
5 0
3 years ago
Fareshta ran 4.75 miles each day to prepare for a race.
Sever21 [200]

Answer:

137.75

Step-by-step explanation:

easy multiplication: 4.75 x 29.

5 0
3 years ago
Read 2 more answers
Let g(x) = x² - 3 and h(x) = 2x + 5. Find g(h(x)).
Arisa [49]

Answer: 4x^2+20x+22\\\\

========================================

Work Shown:

g(x) = x^2 - 3\\\\g(h(x)) = (h(x))^2 - 3\\\\g(h(x)) = (2x+5)^2 - 3\\\\g(h(x)) = (2x+5)(2x+5) - 3\\\\g(h(x)) = 4x^2+10x+10x+25 - 3\\\\g(h(x)) = 4x^2+20x+25 - 3\\\\g(h(x)) = 4x^2+20x+22\\\\

Explanation: I replaced every x with h(x) in step 2. In step 3, I replaced h(x) with 2x+5 just on the right hand side only. From there, expand and simplify.

7 0
3 years ago
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