In geometry, the three undefined terms are: the point, the plane and the straight line.
Since all the given graphs represent lines,we will need to choose the straight line among them.
Straight line is a line that has no start and no end.
From the choices:
Figures a and c are rays
figure b is a line segment
figure d is a straight line
Therefore, the correct choice is: D
Answer:
see explanation
Step-by-step explanation:
(1)
(a)
sin(a) = 
= 
(b)
cos(a) = 
= 
(c)
tan(a) = 
= 
----------------------------------------------------
(2)
(a)
sin(b) = =
(b)
cos(b) = =
(c)
tan(b) = = 
Answer:
Minimum number of questions in the game is 5.
Step-by-step explanation:
- You answer 80% of the questions correctly, that is
=
= 
- Your friend answers 0.60 of the questions correctly, that is
=
= 
Minimum number of questions in the game is 5 and you answered 4 questions correctly, your friend answered 3 questions correctly.
Answer:
132 bicycles
Step-by-step explanation:
The ratio of bicycles to cars is 15:60. Before anything, we need to simplify this ratio. 15/15 = 1, and 60/15 = 4. So, now we have 1:4. Since the question asks for 33 bicycles, we multiply the number of bicycles, 1, by 33. Since we are multiplying the bicycles, we also need to multiply the cars. 4 x 33 = 132.
33:132. We need 132 cars.
You missed an operand in the set of parentheses...if it was (x-9) we have:
5(x-9)-23=42 do multiplication indicated on left side...
5x-45-23=42 sum up like terms on left...
5x-68=42 add 68 to both sides
5x=110 divide both sides by 5
x=22 since this answer isn't in your choices the parentheses must have contained (x+9)...uggh :)
5(x+9)-23=42 perform indicated multiplication on left side...
5x+45-23=42 combine like terms on left side...
5x+22=42 subtract 22 from both sides
5x=20 divide both sides by 5
x=4
