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Jlenok [28]
2 years ago
11

Plz help guys, it is a pretty easy sum​

Mathematics
2 answers:
RoseWind [281]2 years ago
7 0

Answer:

a3+13a

Step-by-step explanation:

sorry I don't know how to solve this

Natasha_Volkova [10]2 years ago
3 0

Answer:+-3

Explanation:

I added 4 on both side so that a^2+1/a^2-2 becomes a^2+1/a^2+2 which is Special products of (a^2+1/a^2).

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What is the surface area of a cylinder with a diameter of 8 centimeters and a height of 12 centimeters?
Lostsunrise [7]
The formula for this is A=2 \pi rh+2 \pi  r^{2}.  If the diameter is 8 the radius is 4, so filling in accordingly we have A=2 \pi (4)(12)+2 \pi (16) and A=96 \pi +32 \pi which is A=128 \pi and when you multiply in 3.14 you get that A = 401.92 or B above.
8 0
3 years ago
If it takes 10 machines 10 minutes to make 10 widgets, how long would it take 50 machines to make 50 widgets? minutes
Allushta [10]
If it takes 10 machines 10 minutes to make 10 items, I would assume it would take 50 machines 50 minutes to make 50 items. Hope this helps :)
5 0
3 years ago
Read 2 more answers
HELP!! I'm not sure what goes in the blank.
natta225 [31]

Answer:

10sin^{2} (β)

Step-by-step explanation:

We can find this two ways, first by seeing in the step after it, cosines are canceled out. Since you already have 10sin^{2} (β) on the next step, you can assume that (since only the cosines changed and the cosine next ot the blank was removed), the value is 10sin^{2} (β).

You can also use double angle formulas from the previous step:

(sin(2β) = 2 sin(β) cos(β))and find that:

5 sin (2β) sin(β) = 5 * (2 sin(β) cos(β)) sin(β)) = (10 sin(β) sin(β)) cos(β) =

10sin^{2} (β) cos(β)

But since cos(β) is already present, we can see that the answer is 10sin^{2} (β)

4 0
2 years ago
Big Jim's Pencil Shop can manufacture 240 pencils in 10 minutes. At this rate, how many pencils can Big Jim's Pencil Shop produc
VladimirAG [237]

Answer:

720

Step-by-step explanation:

240 x 3 = 720 pencils

3 0
3 years ago
Read 2 more answers
help please!! i really don’t understand how to do this and i just need an answer so i can get this class over with ;;
tigry1 [53]

Answer:

1/8

Step-by-step explanation:

(6(3)⁻¹(1))⁻³             n⁰=1

(6/3)⁻³

(2)⁻³

1/(2)³

1/8

Hope it helps

5 0
3 years ago
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