Answer:
-12.4, 8 and 43.7.
Step-by-step explanation:
The given expression is
[tex]-9.8t+20t+8[/tex]
And we have to evaluate it for [tex]t=-2[/tex], [tex]t=0[/tex] and [tex]t=3.5[/tex].
To evaluate we just need to replace each t-value into the polynomial.
For [tex]t=-2[/tex], we have
[tex]-9.8t+20t+8=-9.8(-2)+20(-2)+8=19.6-40+8=-12.4[/tex]
For [tex]t=0[/tex], we have
[tex]-9.8t+20t+8=-9.8(0)+20(0)+8=0+0+8=8[/tex]
For [tex]t=3.5[/tex] we have
[tex]-9.8t+20t+8=-9.8(3.5)+20(3.5)+8=-34.3+70+8=43.7[/tex]
Therefore, the result for each t-value is, respectively, is -12.4, 8 and 43.7.
