please check my answers
1. Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm
A.8
B.21
C.15 ***
D.225
2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg.
A.14
B.144
C.8
D.12 ***
3.Which of the triangles decribed in the table are a right triangle?
Triangle | Side 1 | Side 2 | Side3 |
Q | 25 | 20 | 15 |
R | 26 | 20 | 14 |
S | 25 | 20 | 1026 |
T | 25 | 26 | 650 |
Answer choices:
A. (Q) *****
B. (R)
C.(S)
D.(T)
4.Point E is located at point (-2, 2) and point F is located at (4, -6). What is the distance between point E to F?
A. square root 52
B.square root 28
C.10 ****
D.square root 20
5. craig used the diagram to compute the distance from ferris to dunlap to butte. how much shorter is the distance directly from ferris to butte than the distance craig found?
14 mi
28 mi
70 mi***
98 mi
6. in which quadrant is the point (x,y) located if x is negative and y is positive?
II***
III
IV
I
7. point a (8,-10) is reflected over the y axis. write the coordinates of a.
(-8,-10)
(8,10)
(8,-10)
(-8,10)***
8. how many lines of symmetry does the figure below have? if there are no lines of symmetry, choose none.
1
5***
10
None
17 answers
8 - no idea
7 - NO - y is the same, x changes sign
so (-8,-10) the first on the list
#7 (-8,-10)
(-8,10) is reflected through the origin.
the others look good.
These answers are for the original post. The rest of hers were correct
1.C
2.B
3.B
4.D
5.A
6.D
7.A
8. (I recommend writing this in YOUR OWN words so you are not plagiarizing and this doesn't get traced back.) *THINK SMARTER NOT HARDER!*
To get the square root of imperfect square we can use the formula , which is usually accurate to about two decimal places,√X =√S +(X-S)2√SWhere, X = the number you want the square roof of, and S is the closest square you know to x.For example 75 is an imperfect squareThus, X=75 and thus the nearest number S = 81, this ,means √81 =9.Putting this into the formula;√75= 9+(75-81)/2/2(9) = 9 + -6/18 = 9-0.33333 = 8.667= 8.667, thus the square root of 75 is 8.66
'(btw DO NOT USE THE EXAMPLE! TEACHERS CAN GOOGLE IT AND THEN TRACE IT BACK TO CHEATING!)