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
klemol [59]
3 years ago
5

I REALLY NEED HELP WILL GIVE EVERYTHING GOOD IF YOU HELP ON 2 MORE

Mathematics
1 answer:
DerKrebs [107]3 years ago
4 0

Answer:

edit: i was wrong ignore me

You might be interested in
Built around 2600 BCE, the Great Pyramid of Giza in Egypt is 485 ft high (due to erosion, its current height is slightly less) a
Morgarella [4.7K]

Answer:1.69*10^12 J

Step-by-step explanation:

From figure above, using triangle ratio

485/755.5=y/l. Cross multiplying 485l=755.5y Divide via 485) hence l= 755.5y/485

Consider a slice volume Vslice= (755.5y/485)^2∆y; recall density =150lb/ft^3

Force slice = 150*755.5^2.y^2.∆y/485^2

From figure 2 in the attachment work done for elementary sclice

Wslice= 150.755.5^2.y^2.∆y.(485-y)/485^2

= (150*755.5^2*y^2)(485-y)∆y/485

To calculate the total work we integrate from y=0 to y= 485

Ie W=[ integral of 150*755.5^2 *y^2(485-y)dy/485] at y=0 and y= 485

Integrating the above

W= 150*755.5^2/485[485*y^3/3-y^4/4] at y= 0 and y=485

W= 150*755.5^2/485(485*485^3/3-484^4/4)-(485.0^3/3-0^4/4)

Work done 1.69*10^12joules

7 0
3 years ago
Wei has $150.00 to make a garland using 60-cent balloons. He wants to purchase 100 blue balloons and some number of white balloo
DaniilM [7]

$149.60 that's what he will have left

6 0
2 years ago
Write the next three terms of the geometric sequence.
Sati [7]

Answer:

5, 1, 0.2

Step-by-step explanation:

Divide the number by 5 to get the next one.

8 0
3 years ago
8-3(x - 5) + 2x + 3 how do I solve this ​
schepotkina [342]

Answer:

The answer is -x+26.

Step-by-step explanation:

First you distribute the -3 into the parthensis and you get -3x+15. You write the whole expression again plus the -3x+15 you got from the distributing part so 8-3x+15+2x+3. You combine the like terms so the x with the x and the numbers with the numbers. From there you get the answer of -x+26. I hope this helps you! If you need more clarification or more help please type it in the comments below. Thanks!

3 0
2 years ago
Read 2 more answers
Please help and show working (please)
Alexxandr [17]

In mathematical notation, ∑ means summation. So wherever you see the symbol, you have to sum over all elements in the set. Let's solve the question.

a. ∑m means, to sum all elements in the set m: ∑m = 12 + 15 + 20 + 30 = 77

b. ∑f^{2} means to sum all elements in the set f as the square of the elements f = 5^{2} + 9^{2} + 10^{2} + 16^{2} = 25 + 81 + 100 + 256 = 462

c. ∑mf means to sum all elements as the product of the elements of m and f = (12×5) + (15×9) + (20(12^{2}(5)) + (15^{2}(9)) + (20^{2}(10)) + (30^{2}(16)) = 2114510) + (30×16) = 875

d. ∑m^{2}f means to sum all elements as the product of the square of m and f = ((12*12)(5)) + ((15*15)(9)) + ((20*20)(10)) + ((30*30)(16)) = 21145

4 0
2 years ago
Other questions:
  • How do I expand or factor the following alebraic expressions:
    11·1 answer
  • Jatonia sold n cups of lemonade at her stand for 0.75 each. She made a total of 18.00. Write an equation to express how many cup
    7·2 answers
  • How to write this question as an algebraic expression the sum of 4x by A and 5x by B?
    14·2 answers
  • How do you add someone on brainly
    8·2 answers
  • Which is a statistical question that could have been asked to collect the data shown in the dot plot below? (Pick one)
    8·1 answer
  • Median math question<br> 60 POINTS+BRAINLIEST
    11·2 answers
  • This is my last question i need help with ops help SOMEONEEEE
    14·1 answer
  • The quotient of a number and-2
    6·1 answer
  • Identify the x and y intercepts and write as an ordered pair 1. 3. 5. 2. 6.​
    15·2 answers
  • Suppose that the mean and standard deviation of the scores in a Statistics exam are 75 and 9.5 respectively. What minimum score
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!