Answer:
a.
b.
Step-by-step explanation:
We are given that
a.(0,-1)
Differentiate w.r.t x
.....(1)
Substitute x=0 and y=-1 in equation (1)
Point-slope form:
Using the formula
This is required equation of tangent line to the given curve at point (0,-1).
b.(-1/2,1/2)
Substitute the value in equation (1)
Again using point-slope formula
Answer:
25
Step-by-step explanation:
that what i got
Girs: boys = 7:5
42 : boys = 7: 5
42 : b = 7 : 5
42 / b = 7 / 5 Cross multiply
b*7 = 42 * 5
7b = 42* 5
b = 42*5/7 = 6*5 = 30
boys that participated are 30.
13^2 + 5*2 = 169 + 25 = 194
<span>hypotenuse = square root (194) = 13.9
answer A. </span><span>13.9 (first choice)</span>
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