Which expression gives the value of QR?
1 answer:
Answer:
B
Step-by-step explanation:
using the Sine Rule in Δ QRS
QR × sin80° = 67 × sin52° ( divide both sides by sin80° )
QR =
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You can use the discriminant rule, which is :
-3 = x + x + x
Answer:
Age= 15
Step-by-step explanation:
Let a be for age at the moment
(a-3)^2 =6(a+9)
a^2-6a+9=6a+54
a^2-12a-45
(a-15)(a+3)
a=15 or a=-3
Age cannot be negative (-)
Therefore
Age =15
Answer:
Exact form -
Decimal form - 12.5
Mixed number form - 12
Have a nice day.
Basically you do 25.50 time .15 (15% is equal to .15) and you get 3.825 or $3.83 hope this helped
