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aalyn [17]
3 years ago
15

A person must score in the upper 7% of the population on an admissions test to qualify for membership in society catering to hig

hly intelligent individuals. If test scores are normally distributed with a mean of 110 and a standard deviation of 5, what is the minimum score a person must have to qualify for the society
Mathematics
1 answer:
vladimir2022 [97]3 years ago
4 0

Answer: The minimum score a person must have to qualify for the society = 147.4

Step-by-step explanation:

Let X be the test scores.

As per given,

X is normally distributed.

Mean (\mu) = 110

\sigma=5

$$\begin{array}{l}\quad P(z>2)=0.07 \\\therefore \quad 1-P(z

The minimum score a person must have to qualify for the society = 147.4

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larisa [96]

Answer:  x = 7

Step-by-step explanation:  All the angles of a parallelogram add to 360°

Any two of the consecutive angles add to 180°

Using that information, we can create an equation with the angle measurements given:

(7x + 33) + (11x + 21) = 180 . Combine like terms:

7x + 11x + 33 + 21 =180

18x + 54 = 180 .  Subtract 54 from both sides

18x = 126   Divide both sides by 18

x = 7

7 0
2 years ago
Please solve this: a resident in a particular city pays a water bill of $3.51 per month plus $0.59 per 1000 gallons of water (us
yanalaym [24]

Answer:

  R(x) = 1,969,110 +0.59x . . . . in dollars

Step-by-step explanation:

The basic revenue to the city from the 561,000 customers will be ...

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The usage fee is still $0.59 per 1000 gallons, so the total for a total of x thousand gallons will be ...

  R(x) = $1,969,110 + $0.59x

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3 years ago
GIVING 100 POINTS PLEASE HELP!! Consider the expression 3+(−4)−2−(−1). answer these three questions.
Mamont248 [21]

Answer:

Step-by-step explanation:

12 becuase you have to read the equasion and do the problem

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1 year ago
How can you use integers to represent data
weeeeeb [17]

Answer:

" integers are the collection of all positive and negative whole numbers".

The number line is used to represent integers. we use '+' sign to represent a positive integer and '-' sign is used to represent a negative integer.

integers are very useful in representation of data.

<em>for example:</em>

For a class of 50 students ; if in a class test , '2' marks is given for each correct answer and also there is a negative marking i.e. '-1' is deducted for each incorrect answer.

then we can represent the marks of all the students in a table and the entries in data will be in integers.




4 0
2 years ago
Read 2 more answers
NEED ANSWER IMMEDIATELY!
Vaselesa [24]

\text{Let}\ k:y=m_1x+b_1\ \text{and}\ l:y=m_2x+b_2.\\\\l\ \parallel\ k\iff m_1=m_2\\\\l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}\\\\----------------------\\\\\text{The slope-intercept form:}\ y=mx+b.\\\\\text{We have}\ y=\dfrac{2}{3}x+3\to m_1=\dfrac{2}{3}.\ \text{Therefore}\\\\m_2=-\dfrac{1}{\frac{2}{3}}=-\dfrac{3}{2}\\\\\text{We have the equation}\ y=-\dfrac{3}{2}x+b.

\text{Put the coordinates of the given point (6, -8) to the equation:}\\\\-8=-\dfrac{3}{2}(6)+b\\\\-8=-(3)(3)+b\\\\-8=-9+b\qquad\text{add 9 to both sides}\\\\1=b\to b=1\\\\Answer:\ \boxed{y=-\dfrac{3}{2}x+1}

3 0
3 years ago
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