A community for students.
Here's the question you clicked on:
 0 viewing
Stormswan
 one year ago
can someone check my answers please?? C: I will give a medal!
Stormswan
 one year ago
can someone check my answers please?? C: I will give a medal!

This Question is Closed

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0A segment with endpoints A (2, 1) and C (4, 7) is partitioned by a point B such that AB and BC form a 3:2 ratio. Find B. (3.2, 1.6) (3.2, 4.6) (3.8, 3.4) (4.4, 5.8)

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0I think the answer is B

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0Find the perimeter of a quadrilateral with vertices at C (−2, 1), D (2, 4), E (5, 0), and F (1, −3). Round your answer to the nearest hundredth when necessary. 12 units 16 units 20 units 24 units

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0and im not sure on this one... but i think its C?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0for the first one the change in x is 2 and the change in y is 7 we can find the distance by r^2= x^2 + 7^2

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0okay, could you explain how to do this please? I really need to learn this because I have a bad grade in the class and I need to catch up.

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0you know what? i dont need help with those anymore... but i need help with a few others, if anyone is willing to help??

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0A cylinder has a radius of 6 feet and a height of 9 feet. Which of the following can be used to calculate the volume of a cone that fits exactly inside the cylinder? 1 over 3(3.14)(92)(6) (3.14)(92)(6) 1 over 3(3.14)(62)(9) (3.14)(62)(9)

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0this is the question.

freckles
 one year ago
Best ResponseYou've already chosen the best response.4dw:1437893489289:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.4my drawing got cut off

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0aw, okay. what did it say??

freckles
 one year ago
Best ResponseYou've already chosen the best response.4basically I was saying you can use the slope of that line along with AB/BC=3/2 to solve for B \[\frac{\sqrt{(x2)^2+(y1)^2}}{\sqrt{(x4)^2+(y7)^2}}=\frac{3}{2} \\ \text{ and use } \frac{y1}{x2}=\frac{y7}{x4}=\frac{71}{42}\] \[\sqrt{\frac{(x2)^2+(y1)^2}{(x4)^2+(y7)^2}}=\frac{3}{2} \\ \text{ \square both sides } \\ \frac{(x2)^2+(y1)^2}{(x4)^2+(y7)^2}=\frac{9}{4} \\ \text{ use the slope thing } y1=\frac{6}{2}(x2) \text{ which simplifying a bit gives }\\ y1=3(x2) \\ \text{ also we have from the slope thing that } y7=3(x4) \\ \\ \text{ so now we have the equation } \\ \frac{(x2)^2+9(x2)^2}{(x4)^2+9(x4)^2} =\frac{9}{4} \\ \text{ combine like terms on \top and bottom } \\ \frac{10(x2)^2}{10(x4)^2}=\frac{9}{4} \\ \text{ remember } \frac{10}{10}=1 \\ \frac{(x2)^2}{(x4)^2}=\frac{9}{4} \\ (\frac{x2}{x4})^2=\frac{9}{4} \\ \text{ this should be pretty easy \to solve from here }\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.4once you solve that equation for x you can use y=3(x2)+1 to find y by pluggin in that x

freckles
 one year ago
Best ResponseYou've already chosen the best response.4for the perimeter question I would use the distance formula 4 times once for each side and then add up all those side measurements

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0ummm im talking about the question i just recently asked... not the ones before.

freckles
 one year ago
Best ResponseYou've already chosen the best response.4oh the volume of a cone is pi*r^2*h/3 you are given h is 9 and r is 6 just plug them in

freckles
 one year ago
Best ResponseYou've already chosen the best response.4it is none of them have no idea where they get 62 or 92

freckles
 one year ago
Best ResponseYou've already chosen the best response.4perhaps they meant 6^2 or 9^2 or something but as the choices stand none of them are correct

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0what. this is confusing. this is a practice worksheet.. so it doesnt actually count as a part of my grade.. but i'm trying to find out how to do these so that I can get a good grade on the real assignments..

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0okay.... then how about another question....

freckles
 one year ago
Best ResponseYou've already chosen the best response.4so it really is written as 62 or 92?

freckles
 one year ago
Best ResponseYou've already chosen the best response.4not \[6^2 \text{ or } 9^2?\]

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0Pyramid A is a square pyramid with a base side length of 7 inches and a height of 6 inches. Pyramid B has a volume of 3,136 in3. How many times bigger is the volume of pyramid B than pyramid A? 15 32 54 75 So on this i think the answer is.... B

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.0@Stormswan it would be less confusing if you limit to one question per post

freckles
 one year ago
Best ResponseYou've already chosen the best response.4we can do the question before it just won't exactly match any of your choices

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0after this question i will make a new post deal? :D

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0ummm @freckles no, it's okay. let's try the next one. i think i got that one right :)

freckles
 one year ago
Best ResponseYou've already chosen the best response.4but choice D didn't have a division by 3 in it

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0idk xD i'm just as confused as you are. but i'll just stick with that answer. Can you check if my next question is right? :)

freckles
 one year ago
Best ResponseYou've already chosen the best response.4I didn't do it but if you found it by calculating Volume of B/Volume of A where volume A.. equals.. \[\text{ volume of } A=\frac{ \text{ base length } \cdot \text{ base width } \cdot \text{height }}{3}\] then you did it correct

freckles
 one year ago
Best ResponseYou've already chosen the best response.4like you know base length=base width since the base is a square

freckles
 one year ago
Best ResponseYou've already chosen the best response.4so V of A=(7*7*6)/3 compute this then do volume of B divided by volume of A

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0okay, good! thanks :)

freckles
 one year ago
Best ResponseYou've already chosen the best response.4I assume good means what I just asked you to do confirmed your answer of 32

Stormswan
 one year ago
Best ResponseYou've already chosen the best response.0i'll open a new post with another question, if you dont mind helping @freckles but yeah, I figured it out :)

freckles
 one year ago
Best ResponseYou've already chosen the best response.432 is correct because 3136/98 is 32 where Volume of B =3136 and Volume of A=98

freckles
 one year ago
Best ResponseYou've already chosen the best response.4alright I might come look at it
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.