Answer:
9
Step-by-step explanation:
Solving the equation on the left we get
(x-9)^2
Answer:
(0,-5)
Step-by-step explanation:
The given function is :
We want to find the point where the graph touches the y-axis.
At this y-intercept, the x-value is zero.
So we put x=0 into the equation to obtain:
We evaluate exponents to get:
The function crosses the y-axis at (0,-5).
Answer:
The correct answer is b.
Step-by-step explanation:
The wave equation is given generally as:
c(x, t) = Acos(kx - wt)
Where A = amplitude
k = wave number
w = angular frequency.
x = horizontal distance moves by the wave.
t = time
The options show to us that the wave depends only on t and not (x, t).
Hence, the wave equation becomes:
c(t) = Acos(wt)
Given that:
A = 5 V
f = 1 * 10⁶ Hz
Angular Frequency, w, is given as:
w = 2πf
w = 2 * π * 1 * 10⁶ Hz
w = 2π(1 * 10⁶)
The wave equation becomes:
c(t) = 5cos(2*π*1*10⁶)
The correct answer is b.
Answer:
550 miles.
Step-by-step explanation:
First, we know that each 1,4 (quarter) of an inch equals 50 miles. and we know that four 1,4s equals one. so, using that information, we have 2 3/4. so the 2 has 8 quarters, and then we have 3 quarters left. so we add the 8 quarter's and the 3 quarter's, to get 11. and since each quarter is equal to 50 miles, we multiply 50 by 11.