Answer:
6m
Step-by-step explanation:
The area of the rectangular plot is
A = l*w
= 4*9
= 36 m^2
To find the area of the square plot
A = s^2
36 = s^2
Take the square root of each side
sqrt(36) = sqrt(s^2)
6 = s
The length of the side of the square plot is 6 m
Question: What is 35 percent of 40?
Percentage solution with steps:
Step 1: Our output value is 40.
Step 2: We represent the unknown value with $x$x.
Step 3: From step 1 above,$40=100\%$40=100%.
Step 4: Similarly, $x=35\%$x=35%.
Step 5: This results in a pair of simple equations:
$40=100\%(1)$40=100%(1).
$x=35\%(2)$x=35%(2).
Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both
equations have the same unit (%); we have
$\frac{40}{x}=\frac{100\%}{35\%}$
40
x=
100%
35%
Step 7: Again, the reciprocal of both sides gives
$\frac{x}{40}=\frac{35}{100}$
x
40=
35
100
$\Rightarrow x=14$⇒x=14
Therefore, $35\%$35% of $40$40 is $14$ B. 14%
Answer:
1) The distance between two consecuitive peaks is called the wavelenght, so:
A = wavelenght.
The middle of the wave is called the rest position, so:
D = Rest position.
The distance between a peak and trough is called the wave heigt, so:
C = Wave height.
The distance between the rest position and a peak or a trough, is called the amplitude of the wave:
B = Amplitude.
2) Usually in high frequency waves we have shorter wavelenghts and in low frequency waves whe have larger wavenelgths, this is because the relation between frequency and wavelenght comes from:
velocity = wavelength*frequency.
if the velocity is constant, and we have a increace in the frequency, the wavelenght must decrease (so the velocity remains constant).
The same happens if the frequency decreases, the wavelenght must increase.
If the wheel does one full turn in 180 cm, that means the wheels circumference is 180. The equation for circumference is:
Circumference = (Pi) x Diameter
(Can't find the symbol for pi)
Now plug in the 180 for the Circumference:
180 = (Pi) x D
Divide by Pi:
57.296 = D
ANSWER:
The diameter is 57 cm
