Two planes Intersect in a line ———-. A. Always B. Sometimes C. Never
1 answer:
Hello!
<h2>Answer: </h2>The correct answer is:
______________________________________________
<h2>Explanation:</h2>This is because when two lines cross each other, they intersect at one point.
When they're parallel, they never intersect, and when they're not parallel, they only intersect at one point.
You might be interested in
9514 1404 393
Answer:
13.8654599313 and -0.8654599313
Step-by-step explanation:
If one of the numbers is x, then the other is 13-x, and their product is ...
x(13 -x) = -12
x^2 -13x = 12 . . . . multiply by -1 and simplify
x^2 -13x +6.5^2 = 12 +6.5^2 . . . . complete the square
(x -6.5)^2 = 54.25
x -6.5 = √54.25
x = 6.5 +√54.25 ≈ 13.8654599313
and the other number is ...
13 -x = 13 -13.8654599313 = -0.8654599313
The two numbers are 13.8654599313 and -0.8654599313.
Answer:
Step-by-step explanation:
One property of parallelogram is that opposite angles have the same measure, so we can write down:
Another property is that two adjacent angles are supplementary (meaning that they add up to 180 degrees). Thus, the following equations are true:
Solve the equations:
To check, add up all 4 angles and check if they sum up to 360 degrees:
And please ignore the fact that I cannot insert the degree sign :(
Answer:
In summation form
Step-by-step explanation:
Within one hour, the first person gives a stack of flyers to six people and within the next hour, those six people give a stack of flyers to six new people.
So, in the first 5 hours, the summation of people that receive a stack of flyers not including the initial person will be given by
6 + (6 × 6) + (6 × 6 × 6) + (6 × 6 × 6 × 6) + (6 × 6 × 6 × 6 × 6).
So, in summation form
Therefore, Sigma-Summation Underscript n = 1 Overscript 5 EndScripts 6 (6) Superscript n minus 1, gives the correct solution. (Answer)