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Snezhnost [94]
3 years ago
9

Somebody please help me

Mathematics
1 answer:
hjlf3 years ago
3 0
The last one you just divide Z
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An eraser is in the shape of a triangular prism. Its dimensions are shown in the diagram. What is surface area of the
Colt1911 [192]

Answer:

6000 square millimeters

Step-by-step explanation:

Side length of the slanting side can be calculated using the Pythagorean theorem,

L = sqrt(30^2+40^2) = 50

sufrace area of a triangular prism

= surface area of the end sections + the surface area of the three side faces

= 2*(30*40/2) + 40*(30+40+50)

= 1200 + 4800

= 6000 mm^2

4 0
4 years ago
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12. The weight of 56<br>books is 8kg. What<br>is the weight of 154<br>such books?​
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Answer:

56+56=112 16kg

112+42=154 42 = 6kg

Step-by-step explanation:

5 0
3 years ago
The sum of three consecutive numbers is 27. The smallest of the numbers is​
xeze [42]

Answer:

8

Step-by-step explanation:

let the numbers be x,x+1,x+2

x+x+1+x+2=27

3x+3=27

3x=27-3=24

x=24/3=8

8 0
3 years ago
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Hi! What is y = x^2 -4x +5 vertex form? Please explain how you got this answer. Thanks! :)
Anarel [89]

{x}^{2}  - 4x + 5 = 0 \\  {x}^{2}  - 4x =  - 5 \\   \\  { (\frac{b}{2} )}^{2}  = ( \frac{ - 4}{2} ) = ( { - 2})^{2}  = 4 \\  {x}^{2}  - 4x + 4 =  - 5 + 4 \\  {(x - 2)}^{2}  =  - 1 \\  {(x - 2)}^{2}  + 1
The last line is in vertex form, and can see the vertex is located at (2,1).
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3 years ago
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Need help on range and domain
SashulF [63]

Answer:

<u><em>domain</em></u> is your <u><em>x value</em></u>, and <u><em>range</em></u> is your <u><em>y value.</em></u>

Step-by-step explanation:


6 0
4 years ago
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