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gizmo_the_mogwai [7]
2 years ago
7

. At Carmi’s Pizza, 8% of the pizzas made last week had mushrooms. If 30 pizzas had mushrooms, how

Mathematics
1 answer:
I am Lyosha [343]2 years ago
6 0

Answer:

b 375

Step-by-step explanation:

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scores on the act college entrance exam follow a bell-shaped distribution with mean 18 and standard deviation 6. Wayne's standar
WITCHER [35]

Answer:

His actual score is 15

Step-by-step explanation:

Here, we are interested in calculating Wayne’s actual score on the ACT

when we say the scores have being standardized, it means the score was reported in terms of the z-score and not the initial raw scores.

Now, mathematically, for the scores to have a negative z-score, it means it is actually below the mean.

The formula for the z-score or standard score is given below;

z-score = (x - mean)/SD

where in this case, x = ? which is the score we are looking for , z-score = -0.5 , mean score = 18 and standard deviation of the scores = 6

So, substituting these values into the z-score equation, we have;

-0.5 = (x-18)/6

x-18 = 6(-0.5)

x -18 = -3

x = -3 + 18

x = 15

7 0
2 years ago
The image of the point (4,-2) under a rotation 180 degrees about the origin is: A. (−4,−2) B. (−4,2) C. (−2,−4) D. (−2,4)
Arlecino [84]

Answer:

(-4,2)

Step-by-step explanation:

when rotated about 180 degrees, you change both signs

6 0
2 years ago
A spinner with 10 equally sized slices is shown below. (3 slices are blue, 2 are yellow, and 5 are rec the probability that the
Ainat [17]

Answer:

1/2

Step-by-step explanation:

Blue + yellow = 3 + 2   = 5     out of 10 slices

     5 out of 10   = 5/10 = 1/2

5 0
2 years ago
Covert 4.12 in a faction
postnew [5]

Answer:

it would be 103/25

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Explain why a graph that fails the vertical-line test does not represent a function. Be sure to use the definition of a function
ArbitrLikvidat [17]

Explanation:

A function is a relationship where any one x-value/input only has <u>one </u>corresponding y-value/output. (note: a y-value can have multiple x-values).

> This can be called "assigning one y-value to every x element".

The vertical line test places a line that would connect all y-values of an x-value (that is, if it were to have multiple y-values). If multiple points can be found along the vertical line, it is, therefore, by the definition of a function, not a function. (Because an x-value will have more than one y-value).

So, a graph that fails the vertical-line test does not represent a function because an x-value will correspond with more than one y-value.

hope this helps!!

4 0
1 year ago
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