Answer:
-9
Step-by-step explanation:
You have to plug 8 into the formula for x. f(8) = -2(8)+7 = -16+7 = -9
To get the vertex of the parabola we proceed as follows;
y=-7(x-4)^2-5
The above can be written as:
y=-7x^2+56x-117
The values of a,b and c are:
a=-7, b=56 and c=-117
x=-b/(2a)
x=-56/(-7*2)=4
but;
y=-7x^2+56x-117
y=-7(4)^2+56(4)-117
y=-5
Thus;
x=4 and y=-5
The vertex will be at point (4,-5)
Answer:
Option C. 
Step-by-step explanation:
we know that
In the right triangle ABC
The tangent of angle B is equal to the opposite side angle B divided by the adjacent side angle B
substitute the values
Answer:
c
Step-by-step explanation:
angles in a triangle r equal to 180
180-90-65 is equal to 25
and 1 is 90 degree
The yellow pins show as 85% of the total number of pins that Collin ordered
