$60, Because 2% of $1000 is $20, and 20 x 3 is 60.
Answer:
4.0
observed time spent exerciseing: 4.5
predicted time:5.5
residual: 1
5.0
observed time spent exerciseing: 6.5
predicted time:5.0
residual: 1.5
nswer:
B
C
=
24
Explanation:
The triangle is isosceles, because (from the diagram) ∠
A
B
C
=
∠
A
C
B - note how the angle there is marked on both of these. If these angles are equal, this means that the sides
A
C
=
A
B
let A
C
=
A
B
x
+8=2x-1
8
=
x
−
1
x
=
9
We want to find the length of
B
C
, which is (
3
x
−
3
)
. We know that x
=
9
B
C
=3
x
−
3
B
C
=
3
(
9
)
−3
B
C
=
27
−
3
B
C
=
24
Step-by-step explanation:
Gravitational potential energy is:
PE = mgh
Given PE = 96000 J and m = 80 kg:
96000 J = (80 kg) (9.8 m/s²) h
h ≈ 122 m
Round as needed.
Volume of the first- (15)(8)(8)=960cm cubed
Volume of the second-(20)(8)(8)=1280
Difference=320
320 cm cubed were needed to make the taller candle
