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DIA [1.3K]
3 years ago
9

What are the true and false statements for If two planes intersect, then their intersection is a line. Include converse, inverse

and contrapositive.
Mathematics
1 answer:
KonstantinChe [14]3 years ago
3 0

Answer and Step-by-step explanation:

Solution:

Statement:

If two planes intersect  their intersection is a line.

Suppose that

P =if two planes intersect.

q = then their intersection is line.

¬p = if two planes do not intersect.

¬q = then their intersection is not a line.

Converse:

If two planes intersect their intersection is a line.

P → q

Inverse:

If two planes do not intersect, then their intersection is not a line.

¬p → ¬q

Contrapositive:

If two planes intersection is not a line, then they do not intersect.

¬q → ¬p

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Solve for b.<br><br> 8b−1=24b+4
Allushta [10]
8b - 1 = 24b + 4
8b - 1 + 1 = 24b + 4 + 1
8b = 24b + 5
8b - 24b = + 5
-16 = + 5
-5/16

Answer: b = -5/16

3 0
3 years ago
Read 2 more answers
What is the reciprocal of 7/12
Artemon [7]
The reciprocal is just when you flip the number that you're given. the reciprocal of 7/12 is 12/7
6 0
3 years ago
Which of the following is true about the expression square root of 3*2
baherus [9]

Answer:

B

Step-by-step explanation:

\sqrt{3}*2=3.464101615137755‬ so it is equal to an irrational number.

2 is rational, and \sqrt{3} is irrational, because it is equal to 1.732050807568877‬

Hope this helps you. Please mark brainliest! Have a nice day!

7 0
3 years ago
I need help it’s super confusing
steposvetlana [31]

Answer:

Range = 58

Mean = 25.81

Median = 17

Mode = 2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60

Upper Quartile = 11

Lower Quartile = 48

Step-by-step explanation:

Start by putting all of the values in order from least to greatest.

16, 18, 12, 9, 17, 2, 41, 48, 50, 60, 11

becomes

2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60

Range

The range is the difference between the highest and lowest value. So in this case, it's 58, because 60 - 2 = 58

Mean

The mean is another word for the average. To calculate the average, add all of the values and divide the sum by the number of values.

2 + 9 + 11 + 12 + 16 + 17 + 18 + 41 + 48 + 50 + 60 = 284

There are 11 values, so divide the sum (284) by 11:

284 / 11 = 25.8181818.

That rounds to 25.81

Median

The median is the middle value of the data set.

In 2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60 the middle value is 17. It has 5 values on each side of it.

Mode

The mode is the number that appears the most in the data set. Each value only appears once, so the mode is the entire list of numbers. 2, 9, 11, 12, 16, 17, 18, 41, 48, 50, 60

Upper Quartile

The upper quartile of a data set is the median of the numbers that are to the left of the median for the entire data set. The median is 17, so the numbers to the left are 2, 9, 11, 12, and 16. The median of those is 11 because it is in the middle. So the upper quartile is 11.

Lower Quartile

The lower quartile is found the same way the upper quartile is, but it's the median of the numbers to the <em>right</em>. The numbers to the right of 17 are

18, 41, 48, 50, and 60. The median of those is 48 because it's in the middle. So the lower quartile is 48.

5 0
3 years ago
Find a vector equation and parametric equations for the line. (Use the parameter t.)The line through the point (4, 2.1, 3.1) and
olga_2 [115]

Answer:

Vector equation:

(4 + 6t, 2.1 + 4t, 3.1 - 2t)

Parametric equations:

x(t) = 4 + 6t

y(t) = 2.1 + 4t

z(t) = 3.1 - 2t

Step-by-step explanation:

The line is parallel to the vector 3i + 2j − k.

So the vector of this line is a multiple of this vector, so i will use 6i + 4j - 2k.

The line goes through the point (4, 2.1, 3.1).

So the parametric equations are:

x(t) = 4 + 6t

y(t) = 2.1 + 4t

z(t) = 3.1 - 2t

The vector equation is:

(4 + 6t, 2.1 + 4t, 3.1 - 2t)

3 0
3 years ago
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