Answer:
a) ( -3a ) × ( -2ab ) = 6a^2b
b) -(4n^3)^2 = 16n^6
Step-by-step explanation:
Answer:
-15
Step-by-step explanation:
(-15) remove brackets
-15
Answer:
12500
Step-by-step explanation:
2:3:5
^
smallest share
5 - 2 = 3
7500 / 3 = 2500
2500 × 5 = 12500
2500 × 2 = 5000
Check to see if correct:
12500 - 5000 = 7500
The answer will be 12500, hope this helps.
Answer:
16.5
Step-by-step explanation:
Answer:
The possible values for ∠V is 81.2° and 98.8°
Step-by-step explanation:
In ΔUVW, v = 8.1 cm, u = 7.6 cm and ∠U=68°. Find all possible values of ∠V, to the nearest 10th of a degree.
We solve the above question using Sine rule
Sine rule
= u/sin U = v/sin V
In ΔUVW, v = 8.1 cm, u = 7.6 cm and ∠U=68°
Hence:
7.6/sin 68° = 8.1/sin V
Cross Multiply
7.6 × sin V = sin 68° × 8.1
sin V = sin 68° × 8.1/7.6
V = arc sin ( sin 68° × 8.1/7.6)
V = arc sin (0.99)
V = 81.18°
Another value for V = 180° - 81.18°
= 98.82°
Therefore, the possible values for ∠V approximately to the nearest tenth of a degree is 81.2° and 98.8°