Answer:
D
Step-by-step explanation:
(3x³ + 5x)/(x+1)
(3x³ + 3x² - 3x² - 3x + 8x + 8 - 8)/(x+1)
[3x²(x+1) - 3x(x+1) + 8(x+1) - 8]/(x+1)
3x² - 3x + 8 - 8/(x+1)
Ans=0.7 , 31/40 , 78%
(0.700 , 0.775 , 0.780)
#maybe XD
Answer/Step-by-step explanation:
27.
✔️Sin 23 = opp/hyp
Sin 23 = t/34
34*sin 23 = t
t = 13.3
✔️Cos 23 = adj/hyp
Cos 23 = s/34
s = 34*cos 23
s = 31.3
28.
✔️Sin 36 = opp/hyp
Sin 36 = s/5
s = 5*sin 36
s = 2.9
✔️Cos 36 = adj/hyp
Cos 36 = r/5
r = 5*cos 36
r = 4.0
29.
✔️Sin 70 = opp/hyp
Sin 70 = w/10
w = 10*sin 70
w = 9.4
✔️Cos 70 = adj/hyp
Cos 70 = v/10
v = 10*cos 70
v = 3.4
<h2><u>Solution</u> :-</h2>
Given : f(x) = 5x² - 7(4x + 3)
Now,
f(3) = 5 × 3² - 7(4 × 3 + 3)
= 5 × 9 - 7(12 + 3)
= 45 - 7 × 15
= 45 - 105
= - 60
<u>Hence</u>,
f(3) = - 60