6.6766*10^4 is that number in scientific notation
Answer:
250 boys attended the conference.
Step-by-step explanation:
First, divide 750 by 3 (one-third of the conference is boys) and you will get 250 (number of boys). If you wanted to find the number of girls too, you would simply double 250 to get 500 girls.
Answer:
21-(-7)=28
Step-by-step explanation:
1. Do same, change, opposite.
21-(-7)
21+7
=28
Answer:
one is negative and one is positive, they are both 4
Let, f(x) = y = -12x^2+6x-8
Substitute x = -1 in f(x) we get y = -26
y = -12x^2+6x-8
Differentiate ‘y’ w.r.t ‘x’ we get
dy/dx = -24x+6
By putting value of ‘x’ we get
dy/dx = 30
Slope(m)=dy/dx = 30
Equation of tangent => (y - y1)=m(x - x1)
Here, x1= -1 and y1 = -26 and m = 30
So, (y - (-26)) =30(x - (-1))
y+26=30(x+1)
y+26=30x+30
30x - y + 4 =0 is the equation of tangent at x = -1
