Question

Math check my answers please

Answer 1

1. What is the solution of the proportion? 5/9 = m/54
A: 6

2. Given the proportion a/b = 6/20, what ratio completes the equivalent proportion a/6 = ?/?. ?
A: b/20

3. Are the two triangles similar? How do you know?
http://tinypic.com/r/idhk09/8
A: yes, by SSS

4.Which theorem or postulate proves the two triangles are similar?
http://tinypic.com/r/34yy6b8/8
A: SSS- Theorem

5.Find the geometric mean of the pair of numbers. 45 and 5
A: 25

6.What is the value of x, given that PQ || BC?
http://tinypic.com/r/e0n4w0/8
A: 18

7. What is the value of x?
http://tinypic.com/r/2ch8360/8
A: 12

8. Find the length of the missing side.
http://tinypic.com/r/rljbpt/8
A: 17

9. In triangle ABC, < A is a right angle and m< B = 45. Find BC.
http://tinypic.com/r/21pwfs/8
A: 12 2

10.Find the value of the variable. If answer is not an integer, leave in simplest radical form.
http://tinypic.com/r/2yy3u6f/8
A: 18 3

Answer 2

1 is wrong. redo

Answer 3

2 ) Yes

Answer 4

okay thank you. are you checking the others?

Answer 5

3) yes, but ASA , not SSS

Answer 6

4) yes, but AAA

Answer 7

5) No, it is 15

Answer 8

http://easycalculation.com/statistics/geometric-mean.php

Answer 9

man you actually checked all his work!!

Answer 10

you deserve a big medal loser!

Answer 11

6) I don't see what is x on the image
@dan815 the students need our check are the good ones. They work and need check only. They deserve our help, right? If it is 20 or even 100 and I have to spend 1 hour to check, I will

Answer 12

Again, tell me what is x on the image for problem 6 @xstreetprowl

Answer 13

oh, I saw it from problem 7

Answer 14

yeah i know im sorry my teachers are silly

Answer 15

6) No, it is 9

Answer 16

Oh okay thank you :)

Answer 17

7) it's not 12 but I don't know how to solve.

Answer 18

@dan815 Problem 7 , please.

Answer 19

its 8

Answer 20

im pretty sure its 8 if its not 12

Answer 21

8) Yes

Answer 22

ok, we discuss about it.

Answer 23

okay let me take a look

Answer 24

u can use triangle similarity properties