7x^2 - 16x - 8 = 0
using the quadratic formula x = [ -(-16)+/- sqrt((-16^2 - 4*7-8] / 2*7
= (16 +/1 sqrt 480) / 14
= 2.71, -0.42 to nearest hundredth
Answer:
area of rectangle=7×5=35cm²
area of triangle=1/2×4×3=6cm²
Step-by-step explanation:
area of figure=35+6=41 cm²
Answer:
Answer: 13.2J
Step-by-step explanation:
- m= 3kg, h= .45m, g=9.8 m/s
find formula for determining potential energy:
- P=mgh
plug numbers into equations, replacing variables:
- (3kg)(9.8)(.45)
Answer:
15
Step-by-step explanation:
25% of 20 is 5 5*3=15
Answer:
800$
Step-by-step explanation:
640/80=8
8=1% so
8x100=800
100%=800
