Answer:
0.28
Step-by-step explanation:
Answer:
3/8
Step-by-step explanation:
if 3/4 of the wall is blue
1/2 has posters
the answer is 3/8
because half 3/4 is equal to 6/8
half of 6/8 is 3/8
The second line of eauation y=-2x+5 is parallel to a since both have the same slope which is -
-2
the first line of equation y=2x-1 is neither perpendicular nor parallel to a since the (slope of this line) x (the slope of a) = 2 x -2 = -4 not -1, so they aren't perpendicular and its slope isn't equal to that of a, so they aren't parallel
the last line of equation y=1/2x+7 is perpendicular to a since (the slope of a) x (the slope of this line) = -2 x 1/2 = -1
Answer:
D
Step-by-step explanation:
Nothing gets rid of the square root signs. That makes a and b incorrect as answers without doing a single calculation. Now the race is on between c and d.
The dot between f and g only means that f(x) and g(x) are multiplied together. There is nothing in that statement that helps us distinguish c and d.
So the two roots are multiplied together f·g(x) = √[(x + 7)(x - 2)]
Expand the two terms between the square brackets and you get
[x^2 + 7x - 2x - 14]. When you combine like terms you get
[x^2 + 5x - 14] or f·g(x) = √(x^2 + 5x - 14]
The answer is D