The mean distance from Mars to the

Mathematics

1 answer:

kotegsom [21]3 years ago

8 0

105.65 is your answer

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Consider the parabola represented by the equation -2y^2=4x

stepan [7]

Part 1: The general form for this matches y^2 = -4cx, which implies that this opens to the left. (Imagine assigning any value of y, whether positive or negative, which would result in a positive left-hand value. Then to match this sign, the value of x must be negative so that the right-hand side becomes positive as well.)

Part 2: The distance from the vertex to the directrix is given by c. This equation has its vertex at the origin (0, 0). If it opens to the left, the directrix is a vertical line to the right of the origin. This equation is y^2 = -4(1/2)x, so c = 1/2, and the directrix has the equation x = 1/2.

Part 3: The focus is inside the parabola, but it is the same distance from the vertex as the directrix. This distance is 1/2 units, and it will be to the left of the vertex. So the focus is at (-1/2, 0).

5 0

3 years ago

In a society there are 30 men and 20 women members.

krek1111 [17]

<h3>Answer: 2/5</h3>

This is because there are 20 women out of 50 people total (30+20 = 50).

So 20/50 = 2/5

This converts to the decimal form 0.4 and the percentage form 40%

3 0

3 years ago

a class consists of 10 boys and 5 girls. how many ways can a committee of 3 boys and 2 girls be selected

hammer [34]

Answer:

<em>i dont know the answer dude or ladies</em>

Step-by-step explanation:

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3 years ago

Need help on 60 please!

barxatty [35]

Thousand=2,000
ten thousand=7,000
hundred thousand=100,072,055(i think :/ )
million(not sure) 10million?

3 0

3 years ago

A palindrome is a number that reads the same forwards and backwards, such as 22 or 39793.

Aleks04 [339]

Answer:

There are thirty-nine palindromic numbers between 10 and 400.

Step-by-step explanation:

Listed, they are: 11, 22, 33, 44, 55, 66, 77, 88, 99, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 202, 212, 222, 232, 242, 252, 262, 272, 282, 292, 303, 313, 323, 333, 343, 353, 363, 373, 383, and 393.

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2 years ago