Answer:
number 1. answer is 5
number 2. answer is 2 1/2
number 3. answer is 9/16
number 4. answer is 45.7
number 5. answer is 18.7
Four nickels,
because 1 dime=10¢ and so 21 x .10 = 2.10 and 1 nickel=5¢ so .05 x 4 = .20
2.10 + .20 = 2.30
I’m not sure if the explaining made sense but it’s 4 nickels :)
Answer:
$3,500
Step-by-step explanation:
500:3
3x7=21
500x7=3,500
$3,500 for 21 cilents
Answer:
option c is the correct answer of given statement
The amplitude is |-3| = 3.
The period, T, is obtained from
(2*pi)/T = 2
T = pi
From the calculator, the first positive zero is approximately x = 0.85
Algebraically:
The cos function takes a minimum of -1 and a maximum value of +1.
Therefore y can be at most -3 or +3.
This makes the amplitude = 3.
The general expression for the sinusoidal function is
y = Acos((2*pi)/T + b) + k
Therefore, find T from the equation
(2*pi)/T = 2 => T = pi.