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aalyn [17]
4 years ago
15

Based on surveys, 97% of students own cell phones. What is the probability that 10 randomly selected

Mathematics
1 answer:
yarga [219]4 years ago
7 0

Answer:

<em />Probability = 0.7374<em />

<em />

Step-by-step explanation:

Given

Represent the probability that a student has a phone with p

p = 97\%

Required

Determine the probability that 10 has

This is calculated as thus:

Probability = p^n

Where n = 10

Probability = (97\%)^{10}

Probability = 0.97^{10}

Probability = 0.73742412689

<em />Probability = 0.7374<em> --- Approximated</em>

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The perpendicular bisectors of triangle RST intersect at K. Find KR
ivanzaharov [21]

Answer:

Step-by-step explanation:

Remark

The diagram is a mess of lines; you have to guess where that 12 belongs. Just to make the question a bit more interesting, I'm going to say the 12 belongs to the perpendicular.

If that's true you can find KT using Pythagorus. KT and RT are equal. (SSS)

So, let's go.

Givens

1/2 of ST = 1/2 32 = 16

12 is the leg of the small triangle KT and the third point where the perpenduclar line meets ST.

Solution

KT^2 = 16^2 + 12^2

KT^2 = 256 + 144

KT^2 = 400

KT = sqrt(400)

KT = 20

RK = KT because parts of a congruent triangle = parts of the other triangle containing the line (KT) that you are trying to find the length of.

7 0
3 years ago
A punch makes 16 pints.If 10 guests equally share the punch,how many pints will each guest drink?
m_a_m_a [10]

Answer:

1.6 pints

Step-by-step explanation:

A punch=16 pints

If 10 guest shares the punch equally

Each guest get=16 pints/10

=1.6 pints

Each guest will drink 1.6 pints of punch

8 0
3 years ago
What is the mean of 7, 5, 9, 5, and 12
Kryger [21]
The mean is: 7.6
The range is: 7
The median is: 7
The mode is: 5
:)
5 0
3 years ago
Read 2 more answers
What do you pay in tax for a pair of jeans that are priced $50.00 if there is 7% sales tax
NeX [460]

Answer:

I think the answer is $3.50, but I am not sure. Just doing quick math over here :)

7 0
3 years ago
Read 2 more answers
A hotel manager is making identical hospitality bags for guests using 75 soap bars 45 bottles of lotion and 62 bottles of shampo
charle [14.2K]

This question was not written properly

Complete Question

A hotel manager is making identical hospitality bags for guests using 75 soap bars 45 bottles of lotion and 65 bottles of shampoo what is the greatest number of identical hospitality bags the manager can make with the least amount of items left over

Answer:

The greatest number of identical hospitality bags the manager can make is 5

With each bag containing:

15 soap bars

9 bottles of lotion

13 bottles of shampoo

Step-by-step explanation:

We solve this question using Greatest Common Factor Method

We find the factors of 45, 65 and 75

The factors of 45 are: 1, 3, 5, 9, 15, 45

The factors of 65 are: 1, 5, 13, 65

The factors of 75 are: 1, 3, 5, 15, 25, 75

Then the greatest common factor is 5.

Therefore, the greatest number of identical hospitality bags the manager can make is 5

And each bag would contain

For soap bars

75 soap bars/ 5 hospitality bags

= 15 soap bars

For bottles of lotion

45 bottles of lotion / 5 hospitality bags = 9 bottles of lotion

For bottles of shampoo

65 bottles of shampoo/5 hospitality bags

= 13 bottles of shampoo

6 0
3 years ago
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