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12345 [234]
4 years ago
6

Are the expressions 81xy/3x and 9xy equivalent

Mathematics
1 answer:
GrogVix [38]4 years ago
5 0
<span>The expression 81xy/3x and 9xy , divide it by 3 & cancel out 3x/3x to get 27y. 27y does not equal 9xy, so the expressions are not equivalent</span>
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how many 1 1/2 centimeter cubes can fit into a rectangular prism that has a length of 12 centimeters , a width of 6 centimeters
VLD [36.1K]

The long, straightforward, brute-force way to slog through the problem:

The prism is 12cm x 6cm x 9cm.

Volume of the prism = (12 x 6 x 9) = 648 cm³

Volume of each little cube = (1.5 x 1.5 x 1.5) = 3/375 cm³

Number of little cubes that fit into the prism =  (648 cm³) / (3.375 cm³) = <em>

                                                                                     192 of them</em>


=============================================

The elegant but almost equally long way to master the problem:

The prism is 12cm x 6cm x 9cm.

If each dimension of your measuring cubie is 1.5cm,
then the prism measures

     (8 cubie lengths) x (4 cubie widths) x (6 cubie heights) .

Its volume is  (8 x 4 x 6) = <em>192 measuring cubies</em>.


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3 years ago
A cylinder has a radius of
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Answer:785.4

Step-by-step explanation:

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4 years ago
Does anyone know what I am missing to get the final mark? Any ideas would be much appreciated :)
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Answer: Isosceles

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

Given: AB || DE ,  BC is a transversal

∠ABC ≅ ∠BCE by Alternate Interior Angles Theorem --> ∠BCE = 80°

∠DCA, ∠ACB, & ∠BCA are supplementary  --> ∠ACB = 50°

By the Triangle Sum Theorem, ∠A+∠B+∠C  = 180° --> ∠CAB = 50°

Triangle is isosceles because ∠A ≅ ∠C

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The number of wins for a high school football team is measured for the season. When the team plays at home, it is generally beli
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Step-by-step explanation:

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