1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sertanlavr [38]
3 years ago
8

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 province. Approximately how many of these people would have I.Q.s below 76?
2,127

4,170

23,915

2,083
Mathematics
1 answer:
Anastasy [175]3 years ago
5 0
Z = (76 - 104)/16
z = -1.75
4%
.04 * 52,000 = 2083
You might be interested in
In the right -angled tringles began the ABC in the ED :8cm ,and DC :10cm then the length of the air
fgiga [73]
ED:8cm,DC:10 so the air is HD:18
7 0
3 years ago
What is the solution of the equation x2 − 2x = −2?
RSB [31]

Answer:

-2

Step-by-step explanation:

6 0
3 years ago
Factorise or simplify<br><br>4a² - 8ab²​
Alex73 [517]

Answer: I think it would be 4a(a−2b squared)

7 0
2 years ago
Which are correct representations of the inequality –3(2x – 5) &lt; 5(2 – x)? Select two options.
avanturin [10]

The correct simplified inequality is - 6x + 15 < 10 - 5x and the number line representation is "an open circle is at 5 and a bold line starts at 5 and is pointing to the right".

The given inequality is -3(2x - 5) < 5(2 - x)

We need to simplify the inequality.

<h3>What is inequality?</h3>

In mathematics, inequality is a statement of an order relationship greater than, greater than or equal to, less than, or less than or equal to between two numbers or algebraic expressions.

Consider LHS and simplify -3(2x - 5) = -3(2x)-5(-3)

⇒ -3(2x - 5) = - 6x + 15 [∵(-)(-) = (+)]

Consider RHS and simplify 5(2 - x) = 5(2) + 5(-x)

⇒5(2 - x) = 10 - 5x [∵(+)(-) = (-)]

Now, - 6x + 15 < 10 - 5x

By subtracting 15 from both sides, we get

- 6x < -5 - 5x

By adding 5x to both sides, we get - x < - 5

The coefficient of x is -1. So, divide both sides by -1

Then we get x > 5

Hence, the correct simplified inequality is - 6x + 15 < 10 - 5x and the number line representation is "an open circle is at 5 and a bold line starts at 5 and is pointing to the right".

To learn more about inequalities visit:

brainly.com/question/20383699.

#SPJ1

5 0
2 years ago
An ostrich egg weighs 64 ounces is the weight of the ostrich egg greater than 5 pounds?
IgorLugansk [536]

Answer:

An ostrich egg is 4 pounds, therefore, an ostrich egg is not greater than 5 pounds.

Step-by-step explanation:

Convert the ounces to pound.

1 pound = 16 ounces

Next, divide.

64 ÷ 16 = 4.

4 < 5

So, an ostrich isn't greater than 5 pounds

Have a wonderful day!

4 0
3 years ago
Other questions:
  • I need help answer question In image.
    7·2 answers
  • Alan deposited $300 into a savings account. At the end of the first year the amount of money in the account had increased to $33
    11·2 answers
  • What digit 0-9 does not appear in the first 30 digits of pi
    11·1 answer
  • PLLSSSSS HELP MARKING BRAINLIST QUESTION BELOW
    5·2 answers
  • L
    7·1 answer
  • Please Solve this, it would be extremely helpful for me.
    7·1 answer
  • Fraction between - 3/4 and - 1/3
    5·1 answer
  • 4. Molly had $21 to spend on two notebooks. After buying them he had $13. How much did each notebook cost? 
    5·2 answers
  • SECTION 1-1 PRACTICE
    9·1 answer
  • When a ball is dropped onto a flat floor, it bounces to 65% of the height from which it was dropped. If the ball is dropped from
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!