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mixas84 [53]
3 years ago
5

PLEASEEE HELPPPP!!!!!

Mathematics
1 answer:
Elan Coil [88]3 years ago
3 0

Answer:

the answer is 9.85

Step-by-step explanation:

the answer is 9.85 because the area is 19.7 so all you have to do is divide it by 2

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What is the ratio for the volumes of two similar cylinders, given that the ratio of their heights and radio is 2:3?
gtnhenbr [62]
The answer will be a because they are similar and by law the ratio can be cubed to find ratio of volume
6 0
3 years ago
Which phrase describes the algebraic expression B2+7?
svp [43]

Answer:

180

Step-by-step explanation:

3 0
3 years ago
Vectors, I need help plz
Aloiza [94]

DC :AB=3:2 can be written as

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8 0
3 years ago
What is the area??????
OLga [1]

Answer:

15.59

Step-by-step explanation:

The answer is 15.59 because to find the area of an equilateral triangle, you need to multiply the height by the length. In this scenario, the length is 6, and we need to find the height. Since we know that all of the sides of the equilateral triangle are 6, we can put a line dividing the equilateral triangle exactly in half as our height. This will form 2 triangles, and each of them will have a length of 3, and a slant height of 6. They would also be right triangles. Now, with this information you can do pythageroum thereom to find the height:: 3^2 + h^2 = 6^2. So, h = √27. Now, to find the area of a triangle, you must multiply the length by the height and then divide by 2. So (6 • √27)/2 is equal to 15.5884572681, which rounded is equivalent to 15.59. So the answer is 15.59.

4 0
3 years ago
The formula for the surface area of a right rectangular prism is A  2lw  2hw  2lh, where l, w, and h represent the length, wi
Thepotemich [5.8K]

Answer:

The term 2lw is independent of the height

Step-by-step explanation:

This formula is usually obtained reasoning like this: the rectangular prism has 6 faces, thus the surface area is the sum of the areas of these faces.

2 faces are l×w rectangles, so their area is lw+lw=2lw. Note that we are not using the height to compute the area, then this is the independent term.

The 4 remaining rectangles involve the height as one of their dimensions, so their areas (2hw+2lh) depend on the height.

8 0
3 years ago
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