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vivado [14]
2 years ago
15

Who’s right? And why?

Mathematics
2 answers:
erastova [34]2 years ago
5 0

Answer:

Oscar is right because if you divided the cost by the amount in lbs for each row in the table to find the unit rate, it would equal to 3.99.

Digiron [165]2 years ago
3 0

Answer:

Oscar is. dividing the cost by the amount you will find that all answers equal 3.99

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If you are making a scale drawing of a giraffe that is 6m tall, and the height of the giraffe in your drawing is 3 cm, what is t
netineya [11]
18cms because if I take 6cms times 3cms it will equal 18cms.
7 0
3 years ago
Sugar was traditionally produced and sold as sugarloaves, which are cones of sugar wrapped in paper. Find the total surface area
Zolol [24]

Answer:

A = 326,73 cm²

Step-by-step explanation:

The area of a circular cone is area of the base (A₁ ) plus area lateral ( area of a circular sector of radius the slant height )

Then we proceed to calculate the area of the base A₁

diameter of circular base is 8 cm then the radius is 4 cm and the area is:

A₁ = π*r²  =  3,14* (4)²

A₁ = 3,1416*16   =  50,2656 cm²

Now Lateral area of the cone (A₂) is equal to the area of a circular sector with radius the slant height. We will calculate it, taken into account that this circular sector is part of a circle of radius the slant height.

Between the area of circular sector with radius the slant height and the area of the circle with the same radius there is a linear relation. That is we can calculate area of a circular sector by rule of three as follows:

The length of the circular sector is the length of the circle of the base of the cone, that is:

L = 2*π*(4)

L = 2*3,1416*4

L = 25,1328 cm

Then we have a circular sector of length 25,1328 cm

The area of the circle of radius 22 cm is:

A(c)  = π*(22)²     ⇒   A(c)  = 1520,5344 cm²

And the length of this circle is:

L(c)  =  2*π*(22)     ⇒   138,2304 cm

Then we apply a rule of three

For a length of      138,2304 cm  ⇒⇒⇒  (area)  1520,5344 cm²

Then for a length of  25,1328 cm   ⇒⇒⇒(area)   A₂ (??)

Therefore:

A₂ =  (25,1328)*1520,5344)/ 138,2304

A₂ = 276,4608 cm²

Then total area of the cone is:

A = A₁  +  A₂

A =  50,2656  +276,4608

A  = 326,7264 cm²

Round answer  A = 326,73 cm²

8 0
3 years ago
Read 2 more answers
The smallest number that has 1, 2, 3, 4, and 5 asfactors.
STALIN [3.7K]

Answer:

The answer is 60

8 0
2 years ago
hi i need help once again lol A company asked its employees how much time they spend reading and responding to email. The line p
PSYCHO15rus [73]

Answer:

C

Step-by-step explanation:

you multiply each dot by the fraction of hours it is under. you add everything up and you should get 66/8 which is equivalent to 8 and 1/4

8 0
3 years ago
Need help asap due tmr !!!
mezya [45]
Here! not sure if it's right but i'm pretty confident. boom

6 0
3 years ago
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