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SSSSS [86.1K]
3 years ago
9

Joseph is buying tomato seed packets and cucumber seed packets at the store. He plans to buy 7 seed packets of EACH type of plan

t. Cucumber seed packets cost $1.89 each. Joseph spends a total of $23.24 on all the seed packets. Which of the following equations can be used to find how much each tomato seed packet (t) costs?
Mathematics
1 answer:
Katen [24]3 years ago
5 0

Answer: Reply to this with the "following equations" so i can have those to work from.

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All of the edges of a regular triangular pyramid have length 12. A frustum of the pyramid has height half of that of the pyramid
vlada-n [284]

Answer:

1) The volume of the frustum is 27·(√3)·h

2) The surface area the frustum is 24·h + 54·√3

Step-by-step explanation:

1) A frustum of the regular triangular prism is a portion of the triangular prism

The length of the edge of the triangle prism = 12

The area of the triangular face, A = (√3/4)·a²

∴ A = (√3/4)·12² = 36·√3

When

The volume of the triangular prism, V = A·h = (36·√3)·h

By triangle proportionality theorem, the cross sectional area of the top half of the triangular prism =  (√3/4)·6² = 9·(√3)

The volume of the top half, V₂ = 9·(√3)·h

The volume of the frustum = V - V₂ = (36·√3)·h - 9·(√3)·h = 27·(√3)·h

The volume of the frustum = 27·(√3)·h

2) The surface area of the triangular side of the frustum is given as follows;

A = 36·√3- 9·(√3) = 27·(√3)

The surface area the frustum, F_A = 2×27·(√3) + 2 ×6 ×h + 12×h = 24·h + 54·√3

The surface area the frustum = 24·h + 54·√3

4 0
3 years ago
2. Find the surface area of a cylindrical can of tennis balls if the height of the can is 8
alina1380 [7]

Answer:

125.7 square inches

Step-by-step explanation:

The surface area of a cylinder is the sum of the areas of the two circles on each end and the area encircling "rectangle". Note that the length of this "rectangle" is the height of the can, while the width is the perimeter of the circle. The full equation is:

A=2 \pi r^2 +2 \pi r h\\A=2 \pi r(r+h)\\A=2 \pi (2)(2+8)\\A=40 \pi\\A=125.7

7 0
3 years ago
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dybincka [34]

Answer:

the answer is c = (ad)/b

Step-by-step explanation:

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Y = 2x + 3<br> y = -3x + 8
snow_lady [41]

Answer:

i did not get that

Step-by-step explanation:

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2 years ago
What is the length of the unknown side of the right triangle<br>13<br>17<br>25<br>60​
Elena L [17]

I think it’s 17 or 13

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