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spin [16.1K]
1 year ago
10

Read and analyze the given problems. Show your complete solutions:A wave with a frequency of 900 Hz is traveling at a speed of 2

00 m/s. What is the wavelength?
Mathematics
1 answer:
mestny [16]1 year ago
7 0

We know λ = v / f where

λ=wavelength

v=velocity

f=frequency

λ = 200 / 900

λ = 2/9 meters

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determine the equation of the parabola (simplified) with roots -3+sqrt6 and -3-sqrt6, and passing through the point (-1,4)
klio [65]

Given:

Roots:

\begin{gathered} -3+\sqrt[]{6} \\ -3-\sqrt[]{6} \end{gathered}

Point: (-1,4)

To determine the equation of the parabola with the given roots and point, we find the missing values first.

Since the roots are given, we can say that the equation is:

y=a(x+3-\sqrt[]{6})(x+3+\sqrt[]{6})

Next, we expand the terms.

y=a(x^2+6x+3)

Then, we plug in x= -1, and y=4 into the equation to get the value of a.

\begin{gathered} y=a(x^2+6x+3) \\ 4=a((-1)^2+6(-1)+3) \\ \text{Simplify and rearrange} \\ 4=a(-2) \\ a=\frac{4}{-2} \\ a=-2 \end{gathered}

So,

undefined

6 0
2 years ago
Please help me out. Please
Margaret [11]
I think the answers B
8 0
3 years ago
A value to describe the steepness of a strainght line
marta [7]
That depends if the line is vertical or horizontal. If the line is vertical, the slope (steepness) of the line is undefined (this is because the x values across the entire line are the same). If the line is horizontal, the slope of the line is 0 (this is because the y values will always subtract to equal 0 when you use the form y1 - y2/x1 - x2 to find slope).

Hope this helps.
3 0
4 years ago
Simplify square root of c^2d^6 / square root of 4c^3d^-4
charle [14.2K]

Answer: B on ed, i just took my test

Step-by-step explanation:

7 0
3 years ago
Solve the equation for x.<br> Sqrt X-6+3 = 10<br> x=1<br> x=13<br> x = 43<br> x= 55
Jlenok [28]
Answer is 55
Two ways you can approach this first you can subtract the three from the 10 and get 7. Square that to get 49. Now you know that x-6 has to equal 49 and the only option greater than 49 is 55
Second you can just take the problem step by step.
Subtract three from both sides.
Sqrt x-6 =7
Square both sides
X-6=7^2
x-6=49
Add six to each side
X=55
8 0
3 years ago
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