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svetlana [45]
3 years ago
7

7. A recent medical survey reported that 45% of the respondents felt that the doctor explained their condition in a sufficient m

anner. Assuming that this poll reflects all the patients, find the probability that for 12 patients:
a. Four or more agree
b. No more than 8 agreed

Mathematics
1 answer:
vovikov84 [41]3 years ago
8 0

Answer:

a)0.866

b)0.9623

Step-by-step explanation:

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To figure this one out, my pre calculus teacher said to "plug and chug". Since you are adding each number to itself, A=-20, B=-10, C=0, and D=10. So your answer would be C.0
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3 years ago
Solve (x +9)2 = 25.
alexandr1967 [171]

Answer:

x =  - 4 \: or \: x =  - 14

Step-by-step explanation:

We have been given the equation

(x + 9) {}^{2}  = 25

and we are asked to apply the square root property of equality to our given a equation and isolate the variable

First, take the square root of both sides of our equation

\sqrt{(x + 9) {}^{2} }  =  \sqrt{25}

x + 9 =  \: 15

x + 9 = 5 \: or \: x + 9 =  - 5

x + 9 - 9 = 5 - 9 \: or \: x + 9 - 9 =  - 5 - 9

x =  - 4 \: or \: x =  - 14

<em>THEREFORE, THERE ARE TWO SOLUTIONS FOR OUR GIVEN EQUATION</em>

<em>x + 9 = 5 \: then \: x =  - 4. \\ x + 9 =  - 5 \: then \: x =  - 14</em>

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8 0
3 years ago
Given the data set (200,150,325,100,75) find the mean of the data set
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3 years ago
Denise rode 3 kilometers on a bike. her friend clark rode 5000 meters on a bike
antiseptic1488 [7]

\huge \purple{\tt{Answer:}}

Denise rode 3 kilometres .

Clark rode 5000 metres which is 5 kilometres .

So , Clark rode 2 kilometres more than Denise .

8 0
3 years ago
Read 2 more answers
How much times can 6 go into 48
DENIUS [597]
6 can go into 48 8 times. How I figured out?
Start multiplying from a small number like
6×6= 36
6×7=42
6×8= 48
until you see your number 48, or a number that is lower that 48, but can not go any higher than 48.
6 0
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