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sleet_krkn [62]
3 years ago
15

A class’s test scores are normally distributed if the average score 60 and the standard deviation is 7 choose the spots where th

e students scoring below 46 and above 74 lie
Mathematics
2 answers:
AleksandrR [38]3 years ago
6 0

Answer: Look at the picture below

Step-by-step explanation: I got this right on Edmentum

Brrunno [24]3 years ago
5 0

Answer:

46

Step-by-step explanation:

We are given that a  class's test scores are normally distributed with an average score of 60.

We know that the curve of a normal distribution is symmetric about its mean.

60-14=46

60+14=74

Hence, the point 46 lies to the left of the mean and 74 lies to the right of the mean, and the two points have the same function value.

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Answer:

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Step-by-step explanation:

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4 years ago
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Differentiate<br>y=tan (x^2-5x+6)​
slavikrds [6]

Use the chain rule:

<em>y</em> = tan(<em>x</em> ² - 5<em>x</em> + 6)

<em>y'</em> = sec²(<em>x</em> ² - 5<em>x</em> + 6) × (<em>x</em> ² - 5<em>x</em> + 6)'

<em>y'</em> = (2<em>x</em> - 5) sec²(<em>x</em> ² - 5<em>x</em> + 6)

Perhaps more explicitly: let <em>u(x)</em> = <em>x</em> ² - 5<em>x</em> + 6, so that

<em>y(x)</em> = tan(<em>x</em> ² - 5<em>x</em> + 6)   →   <em>y(u(x))</em> = tan(<em>u(x)</em> )

By the chain rule,

<em>y'(x)</em> = <em>y'(u(x))</em> × <em>u'(x)</em>

and we have

<em>y(u)</em> = tan(<em>u</em>)   →   <em>y'(u)</em> = sec²(<em>u</em>)

<em>u(x)</em> = <em>x</em> ² - 5<em>x</em> + 6   →   <em>u'(x)</em> = 2<em>x</em> - 5

Then

<em>y'(x)</em> = (2<em>x</em> - 5) sec²(<em>u</em>)

or

<em>y'(x)</em> = (2<em>x</em> - 5) sec²(<em>x</em> ² - 5<em>x</em> + 6)

as we found earlier.

5 0
3 years ago
Cam walked 4 units down and 8 units left to reach the origin. What is the ordered pair of his starting point?
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Answer is (4,8) or (-8,4)
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WILL GIVE BRAINLYEST AND A LOT OF POINTS HELPPPPPP NOW Use the coordinate grid to determine the coordinates of point P:
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next time take a deep breath

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4 years ago
They got a deal for tables and chairs in the shop. 45 tables cost 500 dollars. The deal gave them this same rate on chairs with
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Answer:

$67

Step-by-step explanation:

45/500=×/750

x=67.50

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