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Svetllana [295]
3 years ago
12

A test of intelligence is given to a subject. The subject scores 110 on the first administration. Six months later, the same sub

ject is given the same test again and receives a score of 75. After another six months has passed, the subject is given the test one last time and receives a score of 138. What conclusions can be drawn from these scores?The scores are not valid.
Mathematics
1 answer:
Basile [38]3 years ago
5 0

Answer:

True, the scores are not valid.

Step-by-step explanation:

The test supposed to be measuring intelligence. We can assume that the intelligence of most people relatively stable (will not change too much over a short amount of time), and can expect it should go upward with brain growth and education. But the test seems to give a huge decrease from the first and second results. Then the third result is a huge increase that even higher than the first test.  

We don't know the true value of the subject, but seeing the huge gap for every repetition we can tell that the test result lacks precision.

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What is the smallest of 3 consecutive odd numbers if the product of the smaller two integers is 3 less than 6 times the largest
pochemuha

Answer:

7,9,11

Step-by-step explanation:

Let first number is x, second number is (x+2) and third number is (x+4).

ATQ,

The product of the smaller two integers is 3 less than 6 times the largest integer.

x(x+2) = 6(x+4)-3

x² + 2x = 6x+24-3

x² + 2x = 6x+21

x² + 2x -6x -21=0

x²-4x -21=0

It is a quadratic equation whose solution is :

x = -3 and x = 7

First number = 7

Second number = 9

Third number = 11

Hence, this is the required ssolution.

3 0
3 years ago
Solve for Y.<br><br> - 140 = 18 + 4 ( 5y - 2 )<br><br> y =
Tomtit [17]

Answer:

Very tricky Question,

Step-by-step explanation:

-140=22(5y-2)

-140=44-5y

5y=140-44

5y=96

y=96/5

y=19.2

Mark me brainliest and rate it 5 star if it helped you.

4 0
2 years ago
Subtract. Fill in the missing numbers. 11-4=? 4=3+1 So, 11-4=
Deffense [45]

Answer:

7

Step-by-step explanation:

7 0
3 years ago
Help Please I'm Out Of Time ;(
Dafna11 [192]

Answer:

Not true.

Step-by-step explanation:

Whole numbers are integers that are 0 or greater than 0.  Since 0 is a whole number and x > 0 does not include 0, the statement is not true. Only the sign ≥ includes 0.

6 0
3 years ago
3. Find BC<br><br> 6. find m&lt; A
sammy [17]

Answer:

Step-by-step explanation:

7 0
2 years ago
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