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Nesterboy [21]
3 years ago
6

A standard I.Q. test produces normally distributed results with a mean of 104 and a standard deviation of 16 for 52,000 students

in grade 12 in the state. Approximately how many of these students would have I.Q.s above 120?
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0

Answer:

maybe 250

Step-by-step explanation:

You might be interested in
Graph the following three equations on your own device and answer the questions below.
Alina [70]

Due to length restrictions, we kindly invite to read the explanation of this question for further details on functions.

<h3>What are the characteristics of each of the three functions?</h3>

a) In this part we must evaluate each of the three functions at the given value of x:

Case 1

f(10) = 5 · 10 + 7

f(10) = 57

Case 2

f(10) = 10² + 6

f(10) = 106

Case 3

f(10) = 2¹⁰ + 3

f(10) = 1027

b) In this part we must evaluate each of the three functions at the given value of x:

Case 1

f(100) = 5 · 100 + 7

f(100) = 507

Case 2

f(100) = 100² + 6

f(100) = 10006

Case 3

f(100) = 2¹⁰⁰ + 3

f(100) = 1.267 × 10³⁰ + 3

c) In this part we must evaluate each of the three functions at the given value of x:

Case 1

f(1000) = 5 · 1000 + 7

f(1000) = 5007

Case 2

f(1000) = 1000² + 6

f(1000) = 1000006

Case 3

f(1000) = 2¹⁰⁰⁰ + 3

f(1000) = (1.268 × 10³⁰)¹⁰ + 3

f(1000) = 10.744 × 10³⁰⁰ + 3

f(1000) = 1.074 × 10³⁰¹ + 3

e) The <em>third</em> function increases the fastest.

f) In this part we need to compare the <em>third</em> function with respect to the <em>first</em> and <em>second</em> functions:

5 · x + 7 = 2ˣ + 3

2ˣ - 5 · x   = 4

The solutions of the equation are x = - 0.675 and x = 4.81. The function will exceed the other <em>first</em> function at x = 4.81.

x² + 6 = 2ˣ + 3

2ˣ - x² = 3

The solution of the equation is x = 4.588. The function will exceed the other <em>second</em> function at x = 4.588.

g) Yes, <em>exponential</em> functions with bases greater than 1 will surpass <em>polynomic</em> function at any point x such that x > 0.

h) The domain represents the set of x-values of a function and the range represents the set of y-values of a function. Then, the domain and range of each function is:

Case 1

Domain - All <em>real</em> numbers.

Range - All <em>real</em> numbers

Case 2

Domain - All <em>real</em> numbers.

Range - [6, +∞)

Case 3

Domain - All <em>real</em> numbers.

Range - (3, +∞)

To learn more on functions: brainly.com/question/12431044

#SPJ1

5 0
1 year ago
One half a number yes more. than 22
weqwewe [10]

what? um child.... anyways

4 0
3 years ago
Dividing, -please please please help?
harkovskaia [24]
B should be the answer Hope this helps.
5 0
3 years ago
On Wednesday evening Sonto spent 1/2 hour doing homework,45minutes doind housework,1 hour visiting friends and 1 1/2 hour televi
svetoff [14.1K]

Answer:

On Wednesday evening Sonto spent 30 minutes doing homework, 45 minutes doing housework, 60 minutes visiting friends and 90 minutes watching television. Write this down the information as a ratio​

Step-by-step explanation:

Total amount of time = 225 minutes

2/15 Homework

1/5 Housework

4/15 Visiting friends

2/5 Watching TV

Whole number ratio

2 : 3 : 4 : 6

3 0
3 years ago
I’m confused plz help!!
Xelga [282]

The explanation is on the picture I attached!

Hope you get it!

3 0
3 years ago
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