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blsea [12.9K]
3 years ago
9

A study showed that a high school junior enrolled in two AP classes studies 25 hours per week with a standard deviation of 6.2 h

ours. If the school had
300 juniors enrolled in two AP classes, how many would you expect to find who studied more than 25 hours per week? ROUND YOUR ANSWER TO
THE NEAREST WHOLE NUMBER!
Mathematics
1 answer:
NeTakaya3 years ago
4 0
Look man I don’t really know the answer my bad
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I need help please!:D
notsponge [240]

Answer:

176 R. 5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The rate at which rain accumulates in a bucket is modeled by the function r given by r(t)=10t−t^2, where r(t) is measured in mil
mars1129 [50]

Answer:

36 milliliters of rain.

Step-by-step explanation:

The rate at which rain accumluated in a bucket is given by the function:

r(t)=10t-t^2

Where r(t) is measured in milliliters per minute.

We want to find the total accumulation of rain from <em>t</em> = 0 to <em>t</em> = 3.

We can use the Net Change Theorem. So, we will integrate function <em>r</em> from <em>t</em> = 0 to <em>t</em> = 3:

\displaystyle \int_0^3r(t)\, dt

Substitute:

=\displaystyle \int_0^3 10t-t^2\, dt

Integrate:

\displaystyle =5t^2-\frac{1}{3}t^3\Big|_0^3

Evaluate:

\displaystyle =(5(3)^2-\frac{1}{3}(3)^3)-(5(0)^2-\frac{1}{3}(0)^3)=36\text{ milliliters}

36 milliliters of rain accumulated in the bucket from time <em>t</em> = 0 to <em>t</em> = 3.

4 0
3 years ago
Miss Sarah only wants one half of a sandwich she says Mr. tom will need one 16th of a pound of cheese for her sandwich Mr. Tom s
Maurinko [17]
Well the 1/8 is for the whole sandwich because it is double the cheese that Ms. Sarah said. So Ms. Sarah is correct because it is for half of the sandwich.
6 0
3 years ago
B ∩ U A = U(B ∩ A).
NARA [144]
Are those emojis or no
5 0
4 years ago
Please answer thanks!
EastWind [94]

Answer:

see explanation

Step-by-step explanation:

tan x = -1

x = tan^{-1}(-1)

x = -45

tan x = 5

x = tan^{-1}(5)

x = 78.69

7 0
3 years ago
Read 2 more answers
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