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AleksandrR [38]
3 years ago
10

Ethan has partially filled the prism with 8 unit cubes.

Mathematics
2 answers:
vampirchik [111]3 years ago
7 0

3 units across would add to 9 and 3 units up would add to 9

aalyn [17]3 years ago
3 0

<u>Complete Question</u>

A rectangular prism with length, height, and width of 3.  Ethan has partially filled the prism with 8 unit cubes.  How many more cubes does he need to fill the prism completely?

Answer:

(C)19

Step-by-step explanation:

The Volume of the Prism = Length X Height X Width

=3 X 3 X 3

=27 \:cubic\:units

Volume of the Unit Cube =s^3=1^3=1 \:cubic \: units

Number of cubes that will fit into the prism= Volume of Prism ÷ Volume of the Cube

=27 ÷ 1=27 cubes

Since Ethan has partially filled the prism with 8 unit cubes.

Number of Cubes required to fill the prism = 27-8

=19 Cubes

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A. 115<br> B. 167<br> C. 126<br> D. 96
geniusboy [140]

Answer:

126

Step-by-step explanation:

Let x be the missing length

The triangles are similar:

● UE/140 = 45/x

From the graph we deduce that:

● UE = 140 - 90 = 50

Replace UE by its value

● 50/ 140 = 45/x

Switch x and 50

● x / 140 = 45/50

45/50 is 9/10 wich is 0.9

● x/140 = 0.9

Multiply 0.9 by 140

● x = 140 × 0.9

● x = 126

5 0
3 years ago
Read 2 more answers
Need urgent help on this! my grade is falling :(
ludmilkaskok [199]

Answer:

the answer is b

Step-by-step explanation:

6 0
3 years ago
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Please help me out with thissssss<br><br> No links no stealing points
Mrac [35]

Answer:

yes

Step-by-step explanation:

congurency property can be used for all right angles triangles

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7 0
3 years ago
Could someone please answer these two
exis [7]

Answer:

SEE BELOW

Step-by-step explanation:

1. find value of m

a^2 + b^2 = c^2

7.5^2+10^2=c^2

15+100=c^2

115=c^2

square it

=10.7 (not answer)

a^2+b^2=c^2

10.7^2+30^2=c^2

114.49+900=c^2

1014.49=c^2

square it

m=31.9

2.20^2 + 21^2 = 841

29^2=841

yes the triangle is right angled !!!

hope this helps :)

6 0
3 years ago
wyatt has a square garden. he adds 3 feet to one side and 1 foot to the other and now it is a rectangle with an area of ft^2 wha
amid [387]

Answer:

The new dimensions are 6 ft and 4 ft.

Step-by-step explanation:

Let x = side of original square.

The sides are increased by 3 ft and 1 ft, so the new side lengths of the rectangle are

x + 3 and x + 1

The area of the rectangle is length × width.

area = (x + 3)(x + 1)

area = x² + 4x + 3

The area is 24 ft².

x² + 4x + 3 = 24

x² + 4x - 21 = 0

(x + 7)(x - 3) = 0

x + 7 = 0 or x - 3 = 0

x = -7 or x = 3

x + 3 = 3 + 3 = 6

x + 1 = 3 + 1 = 4

The new dimensions are 6 ft and 4 ft.

5 0
2 years ago
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