18/21 is the same as 6/7 when it is reduced by 3
so yes, they are equivalent
I am assuming that the whole 3x - 6 in the fraction is the numerator
the this simplifies to 3x (3x - 6)
= 9x^2 - 18x (C)
Answer:
the amount in the account after three years? = $110.96
Step-by-step explanation:
the formula to calculate the amount compounded after 3year =
A = P(1 + r/n)∧nt
A =
where P = principal =starting amount = $100 weekly
r= interest rate = 2.4% weekly = 0.024
t = time interest is computed = 3years =
n = number of time interest is compounded per year =52.1weeks
inputing the parameters
A =
A = 100 (1.0005)^{208}
A = 100 *1.1096
A = $110.96
Answer:
Logo, no intervalo [0°,360°] as soluções da equação sen2x=–senx . São: . 0°,120° ... k∈Z . S={x∈IR: X=(π\2)+2kπ , k∈Z } . b) arccos(2x²–1)=2arccos(1/2) .
Step-by-step explanation:
i know it