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Papessa [141]
3 years ago
10

Give an example of a sequence whose first term is positive, whose second and third terms are negative, and the rest are positive

.
Mathematics
1 answer:
user100 [1]3 years ago
4 0

If you are asking for just an arbitraty sequence, here it goes:

a_n=\{3,-5,-8,1,1,1,1,\dots\}

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Please help fast <br>need it by today
KiRa [710]
6. It is asking you to find the surface area for this one:

1 litre = 0.001 cubic meters
15.4 litres = 0.0154 cubic meters

The volume of the cylinder has to be 0.0154m^3.

V = (pi(r)^2)h
0.0154 = (pi(r)^2)(1)
r^2 = 0.0154/pi
r = 0.07m

Surface Area of Circles on Bottom:
A = pi(r)^2
A = pi(0.07)^2
A = 0.0154
0.0154*2 = 0.0308m^2

Surface Area of Walls:
This will be the circumference of the circle times the height, since the walls are just like a big rectangle.

C = 2pi(r)
C = 2pi(0.07)
C = 0.44m
0.44*1 = 0.44m^2

Finally, add the two surface areas:
0.44 + 0.0308 = 0.47m^2

You will need 0.47m^2 of sheet metal to make this cylinder.

7. Find the volume of everything and just the graphite, and subtract the graphite’s volume from everything to get just the wood. The volume of a cylinder is pi((r)^2)h.

Everything:
Watch out for units, since the diameter is in mm and the length is in cm.

r = 3.5mm or 0.35cm
V = pi((0.35)^2)(14)
V = 5.34cm^3

Graphite:

r = 0.5mm or 0.05cm
V = pi((0.05)^2)(14)
V = 0.11cm^3

5.34 - 0.11 = 5.23cm^3

8. For this problem, it wants your answer in cm^3. Find the volume of one bowl and multiply it by 250:

r = 3.5cm
V = pi((3.5)^2)(4)
V = 153.94cm^3

153.94*250 = 38484.51cm^3 of soup needed.

I sure hope that I didn’t confuse you too much with all of my math gibberish (sorry). Please let me know if there is anything else that I can help with. Have a nice day
3 0
3 years ago
How many sides does the covered polygon have?
andrezito [222]
5 sides and 3 angles.
6 0
3 years ago
.Joline collects hockey cards.
shusha [124]

Answer:

25 Cards

Step-by-step explanation:

If 5 cards is 20%  and  you only need 5 more then that means you have the other 80%. So you 20 80/20 which is 4. Then do 4x5=20 then add the 5 you still need.

3 0
3 years ago
Write the slope-intercept equation of the line parallel to 5y = 2x + 20 that goes through (-1, 3)
katen-ka-za [31]

Answer:

y = \frac{2}{5}x + 3\frac{2}{5}

Step-by-step explanation:

This line was never finished, so you finish it like this:

\frac{5y}{5} = \frac{2x + 20}{5} → y = \frac{2}{5}x + 4

3 = −⅖ + b

3\frac{2}{5} = b \\ \\ y = \frac{2}{5}x + 3\frac{2}{5}

Parallel Lines have SIMILAR <em>RATE OF CHANGES</em> [<em>SLOPES</em>], so ⅖ remains the way it is.

I am joyous to assist you anytime.

8 0
3 years ago
A cargo van is carrying 20 identical cylinders. Each cylinder contains compressed oxygen. Altogether the cylinders weigh 1/2 of
zzz [600]

Answer: Each cylinder weighs 1/40 of a ton.

Step-by-step explanation:

If we were dealing with a total of 1 ton, than we can easily see that each cylinder would be one twentieth. Because we are dealing with a total of 1/2 ton, we can now figure out that each cylinder is 1/40 tons.

5 0
3 years ago
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