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pav-90 [236]
3 years ago
13

PLEASE HELP ME IM TIMED!!

Mathematics
1 answer:
Olin [163]3 years ago
5 0
1.
(7x + y) - (5x + 2y)  \\  = (7x - 5x) + (y + 2y) \\ =  2x + 3y
The value of B is 3


2 .
(8x + 5y) - (2x - 3y) \\  = (8x - 2x) + (5x - 3y) \\  = 6x + 2y
The value of B is 2
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The image of the ant is 9 times the ant's actual size and has a length of 1.8 cm.
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0.2 is the correct asnwer because you divide 1.8 by 9

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4 0
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If 32x+1 - 3x+5, what is the value of x?<br> оооо
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Answer:

x = \frac{4}{35}

Step-by-step explanation:

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7 0
3 years ago
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Please help me on #18, don't know how to do the question.
svetlana [45]

Option B) Determine the volume of the cake V= πr²h and divide that amount by 18

<u>Step-by-step explanation:</u>

  • It is given that, the birthday cake is in the shape of the cylinder.
  • Therefore, to find the entire volume of the cake, the volume of the cylinder formula is used.

<u>The volume of the cylinder is given by,</u>

Volume of the birthday cake = πr²h

After that, it was asked to find the volume of each piece of the cake.

In this case, the birthday cake is cut into 18 pieces.

We already know the total volume of the birthday cake which is πr²h.

In order to find the volume of each piece of cut cake, the total volume must be divided by the number of parts it has been cut into pieces.

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Therefore, the volume of the birthday cake must be divided by 18 to get the volume of each piece of cake.

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8 0
3 years ago
All the answers please on paper and work
REY [17]
1)
8² + 15² = 17²
64 + 225 = 289
This is true, so the triangle is a right triangle.

2)
4² + 12² = 13²
16 + 144 = 169
This is false, so the triangle is not a right triangle.

3)
20² + 21² = 27²
400 + 441 = 729
This is false, so the triangle is not a right triangle.

4)
28² + 45² = 53²
784 + 2,025 = 2,809
This is true, so the triangle is a right triangle.
7 0
3 years ago
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