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Tamiku [17]
3 years ago
12

HELP ME PLEASE!!!!!!

Mathematics
1 answer:
Anestetic [448]3 years ago
3 0

Answer:

Step-by-step explanation:

The range is 10

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Based on the tree diagram below what is the probability that the test for lice returns a false positive
Neporo4naja [7]

Answer:

0.0492

Step-by-step explanation:

Based on the tree diagram we need to tell the the probability that the test for lice returns a false positive. False positive means that the student has no lice but still the test shows a positive result.

So for this we have to first look for the branch, from the starting node, which shows that student has no lice. From the starting point, the upper branch represents the students that have lice and lower branch represents the students who have no lice. So, we will consider the lower branch with probability mentioned as 0.82

Now, the lower branch is divided into two branches further. We have to look for the branch which shows positive test result. This would be the upper branch with probability mentioned as 0.06.

The overall probability of this event is mentioned at the end of the branch which is 0.0492

This is the probability of the combined event: Student has no lice but tests shows positive result which is the False positive.

Thus, the probability that the test for lice returns a false positive is 0.0492

4 0
3 years ago
Ava is sewing a quilt. One of the fabric pieces is shaped like a
Stells [14]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A bicycle wheel has a 10-inch radius.How far does the wheel travel in one full turn
wlad13 [49]

Answer:

Approximately 62.83 inches.

Exactly 20π inches.

Step-by-step explanation:

It's simply the wheel's circumference.

<em>C</em> = 2π<em>r</em> = 2(10)(π) = 20π ≈ 62.83 inches

4 0
3 years ago
Read 2 more answers
A rectangular park is 150 yards on one side and 125 yards on the other.
Ket [755]
So, there is a rectangular park with longer side (length) 150 yards and shorter side (width) 125 yards.

so walking around the rectangular park once is like covering the Perimeter (p) of the rectangular park.

So, lets find the perimeter of the park.
Perimeter of rectangle = 2 ( l + w)
                                    = 2 ( 150 + 125 )
                                    = 2 * 275
                                    = 550 yards

Now, walking around the park two times is like doubling the Perimeter of the rectangle. So, when Debbie walks around the park 2 times, he covers the perimeter of the rectangular field twice.

i.e. Debbie walked 2 * Perimeter
                               = 2 * 550
                               = 1100 yards

Now, If Debbie wanted to walk 1,000,000 yards, she has to walk the  rectangular park (1,000,000 / the Perimeter of the park)
         i.e.  1,000,000 / 550
             = 1818.18 times

So, 
(a) she walks 1100 yards
(b) She have to walk 1818.18 times
4 0
3 years ago
Simplify (4x − 6) − (3x + 6).
antiseptic1488 [7]

the answer is the first one A


8 0
3 years ago
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