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3 years ago

WILL MARK BRAINLEST HELPP ME

Mathematics

1 answer:

vitfil [10]3 years ago

7 0

Answer:

Supplimentry

Step-by-step explanation:

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An egg of a particular bird is very nearly spherical. The radius to the inside of the shell is 4 millimeters and the radius to t

igomit [66]

Answer: The volume of shell is 12.8π mm².

Step-by-step explanation:

Since we have given that

Radius to the inside of the shell = 4 milimeters

Radius to the outside of the shell = 4.2 milimeters

Since r changes from 4 mm to 4.2 mm

so, $dr=4.2-4=0.2\ mm$

As we know that

Volume of shell is given by

$\dfrac{4}{3}\pi r^3$

$dv=\dfrac{4}{3}\pi 3r^2\ dr\\\\dv=4r^2\pi\ dr\\\\dv=4(16)\times 0.2\pi\\\\dv=12.8\pi$

So, the volume of shell is 12.8π mm².

4 0

4 years ago

A line includes the points (10,-5) and (-10,-1). What is the equation in slope intercept form?

Elodia [21]

$\bf (\stackrel{x_1}{10}~,~\stackrel{y_1}{-5})\qquad (\stackrel{x_2}{-10}~,~\stackrel{y_2}{-1}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-(-5)}{-10-10}\implies \cfrac{-1+5}{-20}\implies \cfrac{4}{-20}\implies -\cfrac{1}{5} \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-(-5)=-\cfrac{1}{5}(x-10) \\\\\\ y+5=-\cfrac{1}{5}x+2\implies y=-\cfrac{1}{5}x-3$

8 0

3 years ago

Sophie drew a scale drawing of a house and its lot. The back patio is 3 centimeters wide in the drawing. The actual patio is 18

wel

Answer: 45?

Step-by-step explanation: Sorry If I'm wrong, I haven't learned this yet but I tried my best.

4 0

3 years ago

You answer should say: Car _ by __ km/hr (Use care in answering!)

Lina20 [59]

Answer:

Car B by 20km/hr

Step-by-step explanation:

well, we first calculate the speeds of both cars. there is an allocated dot along the 6 hour mark for the line graph of both cars. hence, using a time of 6 hours, we use their respective distances to produce an answer. car a has travelled 360 km while car v has travelled 480 km.

hence:

speed of car b = 480/6 = 80

speed of car a = 360/6 = 60

8 0

4 years ago

How many radians is 270°??

earnstyle [38]

Converting degrees to radians is easy if you remember,
$\pi =180$
So anytime you have an angle, just divide by 180 and put pi on the end.
$270 =\ \textgreater \ \frac{270}{180} \pi = \frac{3}{2} \pi$

3 0

3 years ago