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1 year ago

Which lines best approximate the directrices of the ellipse? Round to the nearest tenth.

Mathematics

1 answer:

Mrrafil [7]1 year ago

6 0

C aka y = -4.6 and y = 4.6

Step-by-step explanation:

i just took the unit review test on edg. :)

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mart [117]

Answer:

Step-by-step explanation:

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2 years ago

White - 20 marbles

DochEvi [55]

Answer: d

Step-by-step explanation:

The probability of not being purple is the probability of the three other colors. Suppose the number of purple marbles is x. Then we have 20+30+40+x = 90 + x marbles. Then the probability of not being purple is 90/(90+x). If this fraction can have a lowest term for some value of x, then the numerator of this lowest term must be a factor of 90.

Checking through the options, only option D has a non-factor of 90 as its numerator.

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2 years ago

R = {(-3, -2), (-3, 0), (-1, 2), (1, 2)} Select all numbers that are in the domain. -3 -2 -1 0 1 2

Andrei [34K]

Answer:

-3, -1, 1

Step-by-step explanation:

the x-coordinates are the domain

8 0

2 years ago

Multiply polynomials (4x-5)^2

wolverine [178]

16x^2-40x+25 Yes I know my phone is messed up but at least you got the answer

6 0

2 years ago

The table represents a liner function. What is the slope of the function?

Liono4ka [1.6K]

Answer:

The slope is 3.

Step-by-step explanation:

Let's use the slope formula to calculate the slope of this function. Remember, slope equals rise over run, or the difference between y coordinates divided by the difference between x coordinates of 2 points on the graph.

Let's use the last 2 points in the table: (1, 7) and (2, 10)

$\frac{y_{2} - y_{1} }{x_{2} - x_{1} }$

= $\frac{10 - 7}{2 - 1}$

= $\frac{3}{1}$

The slope of this function is 3!

Hope this helps :) Feel free to ask me any questions!

5 0

3 years ago

Read 2 more answers