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3 years ago

Two lines that lie in parallel planes are_____

Mathematics

2 answers:

baherus [9]3 years ago

4 0

Sometimes parallel they are not always parallel

Tpy6a [65]3 years ago

3 0

Hi! The answer is 1. or sometimes parallel. It is not needed for them to always be parallel. I hope this helped you, Goodluck!

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The sum of three conservatives numbers is 180 what is the least number in the series

maw [93]

The least number in the series is 59 I'm guessing sorry if it's wrong

5 0

4 years ago

Miguel is playing a game in which a box contains four chips with numbers written on them. Two of the chips have the number 1, on

Iteru [2.4K]

Answer:

$P(X_i=2) =\dfrac{1}{6}$

$P(X_i=-1) =\dfrac{5}{6}$

Step-by-step explanation:

Given the numbers on the chips = 1, 1, 3 and 5

Miguel chooses two chips.

Condition of winning: Both the chips are same i.e. 1 and 1 are chosen.

Miguel gets $2 on winning and loses $1 on getting different numbers.

To find:

Probability of winning $2 and losing $1 respectively.

Solution:

Here, we are given 4 numbers 1, 1, 3 and 5 out of which 2 numbers are to be chosen.

This is a simple selection problem.

The total number of ways of selecting r numbers from n is given as:

$_nC_r = \frac{n!}{r!(n-r)!}$

Here, n = 4 and r = 2.

So, total number of ways = $_4C_2 = \frac{4!}{2!\times 2!} = 6$

Total number of favorable cases in winning = choosing two 1's from two 1's i.e. $_2C_2 = \frac{2!}{2! 0! } = 1$

Now, let us have a look at the formula of probability of an event E:

$P(E) = \dfrac{\text{Number of favorable ways}}{\text{Total number of ways}}$

So, the probability of winning.

$P(X_i=2) =\dfrac{1}{6}$

Total number of favorable cases for -1: (6-1) = 5

So, probability of getting -1:

$P(X_i=-1) =\dfrac{5}{6}$

Please refer to the attached image for answer table.

7 0

3 years ago

How many solutions does Cos^-1(0) have?

pshichka [43]

When we see $cos^{-1}(0)$ has only 1 soulution

because its range is [0,π]

so only one solution exist at π/2

8 0

4 years ago

Read 2 more answers

Which line is not perpendicular to the line 4x - 3y = 2? A)3x + 4y = 2 B)3x - 4y = 2 C)-3x - 4y = 5 D)3x + 4y = -8

Diano4ka-milaya [45]

Perpendicular lines are lines with slopes that are negative reciprocal of each other. we are given with the equation 4x-3y = 2 where the slope is equal to 4/3. Hence it is expected for the slope of the perpendicular line to be -3/4. the lines with this slope are A)3x + 4y = 2, C)-3x - 4y = 5 and D)3x + 4y = -8. hence the answer is B>

8 0

3 years ago

Find the value of d and YZ if Y is between X and Z.

docker41 [41]

Y is between X and Z

The value of d=2 and the value of YZ = 16

Given :

Y is between X and Z.

XY = 11d, YZ = 9d – 2, XZ = 5d + 28

We need to find the value of d

we know that Y is between X and Z

So, $XZ=XY+YZ$