You want to try and get rid of one of the variables ( x or y) so you would multiply the second equation by 2 which would make the x variable -2x which then when added to the first equation would eliminate the x variable.
Answer: c. Multiply the second equation by 2.
I pretty sure the form is 2, and she bought 10 books, 5b-7=58
Answer:
the answer is C.-1/128......
Answer:
x = 10
Step-by-step explanation:
OA = OD ( both radii of the circle )
OD = OB + BD = x + 16
OB is at right angles to OB ( line from centre to midpoint of chord is right )
Using Pythagoras' identity in right triangle ABO
OA² = OB² + AB² , that is
(x + 16)² = x² + 24²
x² + 32x + 256 = x² + 576 ( subtract x² from both sides )
32x + 256 = 576 ( subtract 256 from both sides )
32x = 320 ( divide both sides by 32 )
x = 10
Answer:
Option B is correct, i.e. Quadrilateral Trapezoid.
Step-by-step explanation:
A "set" is group of all elements which have some special relationship among them like set of Natural numbers (N), set of Real Numbers (R), set of Integers (Z) etc.
A "subset" is group of some elements which are part of some another larger set like Natural numbers (N) is subset of Real numbers (R), i.e. N ⊆ R.
In other words, "SET" behaves like a Big Family, and "SUBSET" behaves like a group of family members which are part of its Big Family.
Checking the given options:-
1. Triangle and Square are different.
2. Rhombus and Rectangle are different.
3. Parallelogram and Triangle are different.
<u>But option B, i.e. Trapezoid is a family member of Quadrilateral Family.</u>
Hence, option B is correct, i.e. Quadrilateral Trapezoid.
