The height , "h" in feet of a baseball after being struck by a bat can be approximated by h(t)=-16t^2 100t+5,where "t" is measured in seconds evaluate h(t) for (t=3)(t=5)

The equation should be h(t)=16t^2 + 100t+5 so that the height won't be negative
basically subsitute h(t)=-16t^2 +100t+5
so subsitute 3 for t and 5 for t
if 3 seconds or t=3 then
h(3)=-16(3^2) +100(3)+5
h(3)=-16(9) + 300+5
h(3)=-144 + 300+5
h(3)=161

if 5 seconds or t=5 then
h(5)=-16(5^2)+100(5)+5
h(5)=-16(25)+500+5
h(5)=-400+500+5
h(5)=105

if t=3 then h(3)=161 ft
if t=5 then h(5)=105 ft

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12

The answer is 10. and if you go by pemdas you would 1. multiplication 2. division 3. addition 4. subtraction