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
lapo4ka [179]
3 years ago
6

100 POINTS 100 POINTS!

Mathematics
2 answers:
Elis [28]3 years ago
7 0

Answer:

Step-by-step explanation:

As each step has the same depth and rise, they are respectively 1.2/4=0.3m and 1.8/4=0.45m.

Dividing the steps along the dotted lines, the total rise of the 4 concrete steps  = (1+2+3+4)*0.45

= 4.5m

Total concrete volume = total rise * depth * width

= 4.5*0.3*1.8

= 2.43m^3

Leni [432]3 years ago
7 0

Answer:

Step-by-step explanation:

a much easier way - imagine there is another concrete stair exactly the same size and shape. flip it over n put it on top of this stair.

the pair will form a concrete block of 1.2m length, 1.8m width and (1.8+1.8/4)m height.

volume of the pair = 1.2*1.8*(1.8+1.8/4)

= 4.86m^3

so volume of concrete for 1 stair = 4.86/2 = 2.43m^3

You might be interested in
There are two factors of -36 such that one factor is 11 less than half of the other factor choose all the pairs of these factors
Amanda [17]

Answer with explanation:

Factors of  -36 are

      =\pm 1, \pm 2,\pm 3,\pm 4, \pm 6, \pm 9, \pm 12, \pm 18, \pm 36

It is given that , among the factors of , -36 , one factor is 11 less than half of the other factor.

If you will take,  =\pm 1,\pm 3,\pm 4, \pm 9,, then you can find such pairs.

Pairs are= (3,-4), (9, -1),(-1, -6),

7 0
2 years ago
While shopping at Walmart, I had the option to buy either a 12 pack of Soda for $13, or I could buy a 24 pack for $24. Based on
ira [324]

Answer:

The 24 pack for 24 dollars!

Step-by-step explanation:

This is because you see that 12 is 1/2 of 24 and if you do 13x2 you get 26$ so for the 12 pack if you double it you will be paying 2$ more than if you got the OG 24 pack

8 0
2 years ago
Read 2 more answers
Which of the statements are true about the function f given by f(x) = 100-e? Select all that apply.
tatiyna

From the above function, it is clear that the value of f is never 0. Hence the statement that is true is (Option E), See explanation of same below.

<h3>What is the explanation for the above function?</h3>

Note that the function is related to Euler's number which is depicted as:
e ≈ 2.7182. The function is given as:

f(x) = 100 * e^{-x}

Assuming x = -2, we'd have:

100 * 2.7182^{-2}

= 271.82^{-2}

= 0.00001353354

Hence, even when x tends < 0 the function f(x) thus, is never 0. See the attached graph for confirmation.

Learn more about functions at:

brainly.com/question/25638609

#SPJ1

6 0
1 year ago
Find the value of x and find whether the angles or supplementary or complementary.
Alborosie

Answer:

1) x = 31

2) Both angles add up to be a supplementary angle (an angle who's sum is 180° altogether).

Step-by-step explanation:

1) Since both angles add up to be a supplementary,

→ equation 1 + equation 2 = 180

→ (3x + 25) + (2x) = 180

Solving by applying algebra will give the answer "x = 31".

Hope this helps!

3 0
3 years ago
Read 2 more answers
The length of ​AB⎯⎯⎯⎯⎯​ is 10 inches. A dilation with a scale factor of 25 is applied. What is the length of the image of ​AB⎯⎯⎯
maria [59]

Answer:250inches

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Please help which figure represents an under defined term?
    10·1 answer
  • I'm too tired to do this.
    10·2 answers
  • Mrs detain divided her collection of 52 glass bears into equal groups she has one bear left over how many groups did she make ho
    8·2 answers
  • Natalie is shopping for new clothes and does not want to spend more than $65. She buys one dress for $26 and wants to buy a few
    12·1 answer
  • Find the least common denominator x^4/x^2+2x+1 and -8/x^2+5x+4
    9·1 answer
  • Please help aced+ if you can.
    5·1 answer
  • Subract 2.2 and 41.5
    9·2 answers
  • Calcula las siguientes raíces.
    13·1 answer
  • U
    12·1 answer
  • A company that teaches self-improvement seminars is holding one of its seminars in Middletown. The company pays a flat fee of $1
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!