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Svet_ta [14]
3 years ago
15

temperature in Alexandria Kentucky from 45 degrees to 10 degrees in 5 hours what is the average change in temperature per hour

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0
So the difference between 45 and 10 is..
 35 (omygad)

You have to divide 35/5 to get the average drop in the temperature PER HOUR, meaning 7 degrees per hour.
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schepotkina [342]
So.. if you take a peek at the picture below

the trunk is really just a half-cylinder on top of a square, with a depth of 2 meters

what's the volume?   well, easy enough, take the volume of the cylinder, then half it
take the volume of the rectangular prism, and then add them both

\bf \textit{volume of a cylinder}\\\\

\begin{array}{llll}
C=\pi r^2 h\\\\
\textit{half that}\\\\
\cfrac{\pi r^2 h}{2}
\end{array}\qquad 
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r=radius\\
h=height\\
-------\\
r=\frac{1}{2}\\
h=2
\end{cases}\implies \cfrac{C}{2}=\cfrac{\pi \left(  \frac{1}{2}\right)^2 2}{2}\\\\
-----------------------------\\\\
\textit{volume of a square}\\\\
V=lwh\qquad 
\begin{cases}
l=length\\
w=width\\
h=height
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l=1\\
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now.. for the surface area... \bf \textit{surface area of a cylinder}\\\\
\begin{array}{llll}
S=2\pi r(h+r)\\\\
\textit{half that}\\\\
\cfrac{2\pi r(h+r)}{2}
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now.. for the surface area of the prism... well

is really just 6 rectangles stacked up to each other at the edges

so... get the area of the lateral rectangles, and the one at the bottom, skip the rectangle atop, because is the one overlapping the cylinder, and is not outside, and thus is not surface area then

for the lateral ones, you have a front of 1x1, a back of 1x1 and a left of 1x2 and a right of 1x2, and then the one at the bottom, which is a 1x2

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3 years ago
Probability question - pic attached below
galina1969 [7]
Answer:
1/10
hope it helps!!!!
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3 years ago
Read 2 more answers
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schepotkina [342]
Answer:

x = 45.6

Explanation:

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-210 = -5x + 18

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x = 45.6

(I’m not sure if this is what you’re looking for, but I hope it helped a bit)
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3 years ago
Look at pic 10 pts will mark brainilest
Nina [5.8K]

Answer:

<em>For part one...</em>

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<u><em></em></u>

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2 years ago
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Bezzdna [24]
<span>Product means multiplication, so I would multiply 379 and 8.
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brainly.com/question/122236
</span>
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