Answer:
31/2÷3/7
= 217
/6
= 36 1/6
≅ 36.16667
Step-by-step explanation:
Solution:
<u>Note that:</u>
- Given sentence: 1/2 of 3/4
<u>Let's reread the sentence carefully.</u>
1/2 of 3/4
↥ ↥ ↥
1/2 x 3/4
Expression formed: 1/2 x 3/4
<u>Simplify the expression.</u>
- 1/2 x 3/4
- => 1 x 3/2 x 4
- => 3/8
Step-by-step explanation:
Given in the question,
C(8,2)
Formula to use:
nCr = n! / r! * (n - r)!
here n = 8
r = 2
We have to calculate combinations of 8 object taken 2 at a time, then
C(8,2)
8C2
8! / 2! * (8 - 2)!
56/2
28
So, 8C2 = 28
Answer:
4.674 × 10²
Step-by-step explanation:
7.4 x 10° + 4.6 x 10²
Note : 10° = 1 . Any number raise to power zero is 1
7.4 × 1 + 4.6 × 100
7.4 + 460
= 467.4
= 4.674 × 10²
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Answer:
K = 5 ; 125 m
Step-by-step explanation:
body falls through 80 metres in 4 seconds, find the distance it would fall in 5 seconds.
Given that:
Distance α (Timetaken)²
Distance = d ; Timetaken = t
d = Kt²
K = constant of proportionality
80 = k4²
80 = 16k
K = 80 / 16
K = 5
Distance it would fall in 5 seconds ; t = 5
D = Kt²
D = 5 * 5²
D = 5 * 25
D = 125
It will fall a distance of 125 m in 5 seconds.