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lidiya [134]
3 years ago
10

A normal distribution has a mean of 20 and a standard deviation of 4. Determine the z-score for the data value of 42.

Mathematics
2 answers:
QveST [7]3 years ago
8 0

Answer:

Z = (42-20)/4 = 5.5

Z = X-μ / σ

Step-by-step explanation:

BARSIC [14]3 years ago
3 0
It equal 5.5 because you have to find the mean of
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I need help finding the pattern!!!!
klasskru [66]
The pattern is 4, 12, 36, 108, 324, 972, 2,916

4+8=12
12+24= 36
36+72= 108
108+216=324 .... and so on



3 0
3 years ago
Jeans are $20 for 2 pairs. Kerry spent $40 on jeans. how many pairs did she buy?
timurjin [86]

Answer:

4

Step-by-step explanation:

Your answer would be 4 because if she spent $20 for 2 pairs you would then know that it would be $10 for 1 pair so it would be $40 for 4 pairs therefor Kerry bought 4 pairs of jeans.Hope it helps you!

7 0
2 years ago
Read 2 more answers
Describe the location of the point that has the following coordinates. positive abscissa, positive ordinate
Marysya12 [62]
The cartesian plane is composed of four quadrants: quadrant I, II, III<span> and IV. Quadrant I has positive x and </span>y axes<span>. Quadrant II has negative </span>x axis<span> and </span>y axis<span>. Quadrant III has both negative x and </span>y axes<span> while quadrant IV has </span>positive x axis<span> and negative </span>y axis<span>. x value refers to the abscissa while y value refers to ordinate. Answer hence is A</span>
4 0
3 years ago
Read 2 more answers
What is the multiple zero and multiplicity of f(x) = (x − 3)(x − 3)(x + 5)? a. Multiple zero is 5; multiplicity is 1 b. Multiple
dolphi86 [110]

Answer:

c. Multiple zero is 3; multiplicity is 2

Step-by-step explanation:

The factor is repeated, that is, the factor  ( x  −  3 )  appears twice. The number of times a given factor appears in the factored form of the equation of a polynomial is called the multiplicity. The zero associated with this factor,  x  =  3 , has multiplicity 2 because the factor  ( x  −  3 )  occurs twice.

Then

Multiple zero is 3; multiplicity is 2.

6 0
3 years ago
Read 2 more answers
Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.
algol13
Answers:
x = 24
y = 8√3
Explanation:

1) Since, the given triangle is a right triangle, and you have both an angle and the hypotenuse length, you can use some trigonometric ratios to find the variables.

2) The variables given represent:

x: adjacent-leg to angle 30°
y: opposite length to angle 30°

3) sine ratio:

sin 30° = opposite-leg / hypotenuse = y / (16√3)

⇒ y = 16√3 sin 30° = 16√3 × (1/2) = 8√3

4) cosine ratio

cos 30° = adjacent-leg / hypotenuse = x / (16√3)

⇒ x = 16√3 cos 30° = 16√3 (√3 / 2) = 16 × 3 / 2 = 24

4 0
3 years ago
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