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Slav-nsk [51]
2 years ago
6

This table shows how many students from two high schools attended a football game. A student is randomly selected What is the pr

obability that a student did not attend the game, given that the student is from west ville? Round your answer to two decimal places
A. 0.57
B. 0.45
C. 0.43
D. 0.60

Mathematics
2 answers:
lutik1710 [3]2 years ago
6 0

Answer:

B 0.45

Step-by-step explanation:

Nimfa-mama [501]2 years ago
5 0

Answer:

D

Step-by-step explanation:

We look at the box where Westville and Did not attend the game meet, and we find 90.

So the probability is \frac{90}{150}

with 90 being the students that did not attend the game and 150 being the total number of Westville students.

\frac{90}{150}=0.60

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You count customers going into the 5 pizza shops in your city. You get 56, 98, 43, 112, and 106. What is the median number of cu
denpristay [2]

Answer:The answer is 98

Step-by-step explanation:

Median is the middle number, so put the numbers from least to greatest and pick the number in the middle. In this case: 43,56,98,106,112. 98 is in the middle.

6 0
2 years ago
Melissa and Jane are planting trees. Melissa plants 10 trees in 1 hour. Jane plants 17 tree in 2 hours.
nadezda [96]

Answer:

6 hours

Step-by-step explanation:

Let both of them plan for  t hours to plant 111 trees n t hours

Melissa  can plants 10 trees in 1 hour

in t hours she can plant 10 t trees

Jane plants 17 tree in 2 hours

in one hour Jane can plant 17/2 trees

in t hours she can plant (17/2)t  trees.

Total trees planted by both of them in t hours in terms of t will be

10t + (17/2)t

= (10t*2 + 17t)/2

= (20t + 17t)/2

= 37t/2

but it is given that they planted 111 trees together

so 37t/2 should be equal to 111

37t/2 = 111

=> 37t = 111*2 = 222

=> t = 222/37 = 6.

Thus, it takes 6 hours for both of them to plant 111 trees together.

4 0
2 years ago
Show that the three points whose position vectors are 7j+ 10k,-i + 6j+6k and - 4i + +9j + 6k form an isosceles right
Novay_Z [31]

Answer:

AB = √18 , BC=√18 and CA =4

AB²+BC²  = CA² and AB=BC

ΔABC isosceles right  angled triangle.

Step-by-step explanation:

Given vectors are  7j+ 10k,-i + 6j+6k and - 4i + +9j + 6k

A( 0,7,10), B( -1,6,6) C(-4,9,6)

AB⁻ = OB-OA = -I+6j+6k-(7j+10k) = -I-j-4k

AB = \sqrt{1+1+16} = \sqrt{18}

BC = OC-OB = -4i+9j+6k-(-I+6j+6k) = -3i+3j

BC=\sqrt{9+9} =\sqrt{18}

CA = OA-OC = 7j+10k - (- 4i + +9j + 6k ) = 4i-2j+4k

CA = \sqrt{16+4+16} =\sqrt{36} =4

Since AB²+BC²  = CA²

And AB=BC

Therefore it follows that ΔABC is a right angled isosceles triangle



3 0
2 years ago
Based only on the information given in the diagram which congruence theorems or postulates could be givenas reasons why triangle
Evgesh-ka [11]
The  answer is C, E, and F on Apex
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The actual length of c in the triangle shown is 15 cm.
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The answer is B. Hope this helps!
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