1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
azamat
3 years ago
9

2. The diagram shows some steps. Find the volume in cm^3 and surface area in cm^2.

Mathematics
2 answers:
aleksley [76]3 years ago
6 0

Step-by-step explanation:

Volume= [(20+20) x (20+20) x 100] - (20 x 20 x 100)

=120000cm^3

surface area= 2 x 40 x 100 + 2 x (40 x 40 - 20 x 20) + 4 x 20 x 100

=18400cm^2

hoa [83]3 years ago
6 0

Volume:

There are a total of 3 "blocks". Each block:

lwh=20cm*20cm*1m=20*20*100=4000cm³ per block

so 3 blocks = 4000cm³*3=12000cm³

Surface Area:

There are 4 |__| faces. Each = 20cm*1m = 20cm*100cm = 2000cm²

2000cm²*4=8000cm² for part 1

There are 2 L faces. Each L face is (20+20)*20=800cm²

so 2 L faces = 1600cm²

There is the back and the bottom are equal. Each is 100*(20+20)=4000cm²

Total Surface Area: 2000+800+4000 (cm²) = 6800cm²

You might be interested in
<img src="https://tex.z-dn.net/?f=%5Cint%5Climits%5E2_1%20%7Bx%5E%7B2%7D-8x%2B8%20%7D%20%5C%2C%20dx" id="TexFormula1" title="\in
12345 [234]

Answer:

{ \underline{ \sf{\int\limits^2_1 {x^{2}-8x+8 } \, dx}  \: =  \:  - 1}}

Step-by-step explanation:

{ \tt{\int\limits^2_1 {x^{2}-8x+8 } \, dx}} \\  \\ =  { \tt{[ \frac{ {x}^{3} }{3}  - 4 {x}^{2}  + 8x ] {}^{2} _{1}}}

Substitute x with the limits:

= { \tt{( \frac{ {2}^{3} }{3}  - 4( {2)}^{2} + 8(2)) - ( \frac{ {1}^{3} }{3}  - 4( {1)}^{2}  + 8(1)) }} \\  = { \tt{( \frac{8}{3}  -  \frac{11}{3} )}} \\  \\  = { \tt{ - 1}}

4 0
3 years ago
2: find the slop and the y-intercept of the line represented by the equation.
yarga [219]
The\ slope-intercept\ form:y=mx+b\\\\m\ is\ the slope\\b\ is\ y-intercept\\\\7x+y=8\\\\y=-7x+8\\\\the\ slope:m=-7\\y-intercept:b=8
7 0
3 years ago
What is the square root of twenty-five
AURORKA [14]
The square root of 25 would be 5!

Brainliest please? I am trying to get my rank to ace!
7 0
3 years ago
Is the following relation a function?<br><br> x y<br> 1 −2<br> 1 −3<br> 2 1<br> 3 −2
vagabundo [1.1K]

Answer:

It is not a function!

Step-by-step explanation:

It is not a function!

A function can't have two y-values assigned to the same x-value. In this case, you can se that for x=1 we have two y-values, which are y= -2 and y= -3.

We can have have two x-values assigned to the same y-value, that's why it's okay that for x=1 and x=3 we have the same y-value y=-2

7 0
3 years ago
PLEASE DONT SEND LINKS OR I WILL REPORT! Emily buys meat for a charity event in her community. Chicken costs 4 AED per kg and be
lyudmila [28]

Answer:

21 AED

Step-by-step explanation:

W know the cost of each kind of meat

Chicken = 4 AED

Beef = 3 AED

We also know how much of each we will be buying

Chicken = 3.6 kg

Beef = 2.2 kg

Multiply each price of meat by its respective weight, then add the products together for you final answer.

4(3.6) + 3(2.2) = 21

5 0
3 years ago
Other questions:
  • Can anyone help???????
    12·1 answer
  • Which shows the algebraic representation of the phrase and it’s value when n=4.2 “twenty-eight plus the product of five and a nu
    12·2 answers
  • Cara is painting her living room. The room measures 10.6 feet by 11.6 feet. The ceiling is 10 feet
    14·1 answer
  • Jenny made 200 bracelets. She sold 64% of the bracelets at a craft fair.
    10·2 answers
  • Suppose that f(x) = ax + b,
    12·1 answer
  • A bus holds 20 seats 6 persons took the bus.<br> In how<br> many ways can these persons sit?
    6·1 answer
  • If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate at which the diameter decreases whe
    5·1 answer
  • The age of a mother is three times the age of her son. If the difference between their
    13·1 answer
  • Guess a number between 1 and 10. First one to guess the number I'm thinking of will be awarded brainliest
    10·2 answers
  • My math grade went from a 78 to a 86. What is the percent increase
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!