Answer:
Step-by-step explanation:A triangle is aptly named: it is composed of three (tri) angles formed by three non-coincident, non-parallel lines. That the lines are non-coincident means they do not overlap, and that they are non-parallel means that each line intersects with every other line. Correspondingly, a triangle also has three sides.
Answer:
9 beads are purple
Step-by-step explanation:
we know that
To find out how many beads are purple, multiply the total beads by the fraction of the beads that are purple
so

therefore
9 beads are purple
Another way to solve the problem is convert the fraction in percentage
we have

so
If the total are 18 beads
50% is 9 beads
therefore
9 beads are purple
X to the power of two thirds <span />
There is a 2.4% chance of getting two negative tests.
The chance the first test is positive is 0.92, therefore the chance it is negative is 0.08.
The chance the second test is positive is 0.3, therefore the chance is it negative is 0.3.
To find the chance that both tests are negative, we have to multiply them together.
0.08 x 0.3 = 0.024 = 2.4%