How do you find the surface area of a 3d object????

Mathematics

2 answers:

Igoryamba3 years ago

8 0

You should start by calculating the area of one of the faces of the chosen figure. Then proceed by doing the same thing till you've calculated the area of all the surfaces. Then all you have to do is add them up.

olga2289 [7]3 years ago

4 0

If you have enough info google can do all the work for you.

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Please help me to find value P

PSYCHO15rus [73]

P=10
Explanation
2p+p+90+100+140=360
3p+330=360
-330. -330
3p=30
P=10

8 0

3 years ago

Find the value of $x$ that maximizes $$f(x) = \log (-20x + 12\sqrt{x}).$$ If there is no maximum value, write "NONE".

kakasveta [241]

The function is written as:
f(x) = log(-20x + 12√x)
To find the maximum value, differentiate the equation in terms of x, then equate it to zero. The solution is as follows.

The formula for differentiation would be:
d(log u)/dx = du/u ln(10)
Thus,
d/dx = (-20 + 6/√x)/(-20x + 12√x)(ln 10) = 0
-20 + 6/√x = 0
6/√x = 20
x = (6/20)² = 9/100

Thus,
f(x) = log(-20(9/100)+ 12√(9/100)) = 0.2553

<em>The maximum value of the function is 0.2553.</em>

5 0

3 years ago

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

umka2103 [35]

That kinda look like a roof from fortnite

6 0

3 years ago

Read 2 more answers

Use the variation of parameters method to solve the DR y" + y' - 2y = 1

postnew [5]

Answer:

$y(t)\ =\ C_1e^{-2t}+C_2e^t-t\dfrac{e^{-2t}}{3}-\dfrac{1}{3}$