Answer:
0.6768
Step-by-step explanation:
It says what is the probability student doesn't have lice GIVEN THAT student tested negative.
<em>We need to look at the tree branch that has "student has no lice" and "test shows negative".</em>
<em><u>Looking at the bottom-most branch, we see this one shows that "test is negative and student has no lice". This has a value of 0.6768. This is the correct answer.</u></em>
Answer:

Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube
Let
z-----> the scale factor
x----> the volume of the planet's moon
y---> the volume of the planet
so

In this problem we have

elevated to the cube

Find the percent

Round to the nearest whole number

Write down the numbers in the chart, write them on a number line, put a point on the number farthest from 0, Closer
2/7.
2/7 + 5/7 =1 Just add the numerator if the denominator is the same
Answer:
CA = 5
Step-by-step explanation:
Since the sides are 3 and 4, we recognize this as a 3:4:5 right triangle, with CA = 5. Using the Pythagorean theorem confirms this:
CA² = AB² +BC²
CA² = 3² +4² = 9 +16 = 25
CA = √25
CA = 5