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laila [671]
3 years ago
10

IQ test scores are normally distributed with a mean of 100 and a standard deviation of 15. An individual's IQ score is found to

be 120. Find the z-score corresponding to this value.
Mathematics
1 answer:
kipiarov [429]3 years ago
5 0

Answer:

Step-by-step explanation:

(score - mean)/stand dev = z score

(120 - 100) / 15 = 1.33 z score = .9082

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Can I get help on this please
Misha Larkins [42]

Answer:

5. You can round question a up to 100 + 55 (then do the counting)

5. You can round question b up to 245 - 100 (then do the counting)

You can round question c up to 100 x 5 (then do the counting)

You can round question d up to 100 x 20 (then subtract accordingly)

Please rank Brainliest if this helps!

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3 years ago
Contains the x intercept of 4x-y=8 and the point (-4,3)
nydimaria [60]
<span>1.       </span><span>4x –y = 8, the point (-4, 3)
Let’s say y = 0
=> 4x – 8
=> 4x / 4 = 8 /4
=> x = 2
So the point is (2 , 0).
Now, we have 2 forms, the (2,0) and the (-4, 3)
=> (y2 – y1)(x2 – x1) = m
=> m = (0 - 3)(2-(-4))
=> m = (0 - 3)(2+4)
=>  m = (-3)(6)
=> m = -1/2
Thus,
y = -1/2x + a
=> 0 = -1 + a so a = 1
y = -x/2 + 1</span>



7 0
4 years ago
Read 2 more answers
Find the rate of change for the interval [5,15]
Aleks04 [339]
Left side goes up 5 right side goes up 7

The rate of change between 5,15 is 10
3 0
3 years ago
I have 3 quarter , 1 nickel , 1 dime , and 3 penny . But I want to divided 2 people .
Andru [333]

The answer would be 93 cents divide it by 2 since you want to share with someone and you would have 46 cents and a nickel for both people

7 0
3 years ago
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Simplify completely quantity 2 x squared plus 13 x plus 20 all over x squared minus 5 x minus 36 .
adoni [48]

Answer:

  • (2x + 5)/(x - 9)
  • 3. quantity 2 x plus 5 over x minus 9

Step-by-step explanation:

Quantity 2 x squared plus 13 x plus 20 all over x squared minus 5 x minus 36

  • (2x² + 13x + 20)/(x² -5x - 36) =
  • (2x²+ 5x + 8x + 20)/(x² - 9x + 4x -36)=
  • (2x + 5)(x + 4)/(x - 9)(x + 4) =
  • (2x + 5)/(x - 9)

Correct option is option 3

3 0
4 years ago
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