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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

1 answer:

vovikov84 [41]3 years ago

8 0

Answer:

a)0.866

b)0.9623

Step-by-step explanation:

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A boy is n years old. His sister is four times as old. The sister's age is

Irina18 [472]

The sister is 4<em>n</em><em> </em>yrs old.

That is because 4 times <em>n</em><em> </em>is 4<em>n</em><em>.</em>

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3 years ago

Locate and plot √11 on a number line. Find a better approximation using decimals. 3.2×3.2= 3.4×3.4 = (Type integers or decimals.

ki77a [65]

Answer:

The point 'R' shows the irrational number √11 on the given number line and for better proximation using decimals, 3.2×3.2= 10.24; 3.4×3.4= 11.56

Step-by-step explanation:

It is given that we have to locate √11 on a number line, so for that we need to mark point 'O' on the number line as shown;

Now,

On the number line, point 'O' represent 0 and the point 'L' represents 3. Thus, we have OL = 3 units.

Now, we will construct LM = 1 unit, which will be perpendicular to the number line given;

=> OM = √10

Now, we will further construct MN = 1 unit, which will be perpendicular to OM;

=> ON² = OM² + MN²

=> ON = √OM² + MN²

=> √(10)² + (1)²

=> √10+1

=> √11

Furthermore, With O as the center and ON = √11 for the radius, we create an arc that crosses the number line at R resulting that line OR = √11 (radius).

Therefore, the point 'R' shows the irrational number √11 on the given number line.

For better proximation using decimals, the answers are:

3.2 × 3.2 = 10.24

3.4 × 3.4 = 11.56

<u>To know more about representation on number line, click here</u>:

brainly.com/question/13425491

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1 year ago

You buy 9 pizzas. Your total cost is $57.89 with an additional charge of $12 for tip. Write an equation that represents the scen

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Answer:

<h3>57.89 - 12 ÷ 9= c </h3><h3>im pretty sure !!!!</h3><h3>step-by-step explanation:</h3>

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2 years ago

You are swimming each 25 yard length of a swimming pool 3 seconds faster than your personal best. What integer represents your c

stealth61 [152]

To solve this problem you must apply the proccedure shown below:

1- The problem says that you are swimming each 25 yard length 3 seconds faster than your personal best and you have to calculate the change in time (which you can call $x$ ) of your personal best after 200 yards.

2- To calculate this, you must multiply 200 yards by 3 seconds and divide by 25 yards, as following:

$x=\frac{(200yd)(3s)}{25 yd}=24s$

Therefore, the answer is: 24 seconds.

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3 years ago

Kelsi's mom, Sue, is 8 times as old as Kelsi. In 10 years , Sue will be 3 times as old as Kelsi. How old are Kelsi and Sue now?

777dan777 [17]

8x+10=3(X+10)
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3 years ago

Read 2 more answers