Need help please????!!!!

Which of the following points lies on the graph of this equation? 2y=x+3

Dimas [21]

Since you didn't provide the points, we can't find the exact answer. However, I can explain how to do the problem for you.

To test the point, just plug in the x and y values and see it the statement is true or false.

Let's try: (3, 4)

Plug in the points and evaluate:

2(4) = 2 + 3
8 = 6
FALSE

Since this is a false statement, then the point is not on the line.

5 0

4 years ago

The frequency f of vibration of a violin string is inversely proportional to its length L. The constant of proportionality k is

Natali5045456 [20]

Answer:

(A) $f=\frac{k}{L}$

(B) Frequency becomes half.

Step-by-step explanation:

We have been given that the frequency f of vibration of a violin string is inversely proportional to its length L. The constant of proportionality k is positive and depends on the tension and density of the string.

(A) We know that two inversely proportional quantities are in form $y=\frac{k}{x}$ , where y is inversely proportional to x and k is constant of proportionality.

Upon substituting our given values, we will get:

$f=\frac{k}{L}$

Therefore, our required equation would be $f=\frac{k}{L}$ .

(B) For part, we have been given that length is twice, so our new frequency will be $f_n$ and new length $L_n$ is $2L$ .

Upon substituting $2L$ in our equation as:

$f_n=\frac{k}{L_n}$

$f_n=\frac{k}{2L}$

$f_n=\frac{1}{2}\cdot \frac{k}{L}$

$f_n=\frac{1}{2}\cdot f$

Upon comparing $f_n$ with $f$ , we can see that $f_n$ is half the value of $f$ .

Therefore, the frequency of vibration of violin gets half, when we double the length of the string.

3 0

4 years ago

Find the perimeter of the figure. Round to the nearest hundredth and show work.

dolphi86 [110]

Answer:

38 cm

Step-by-step explanation:

The perimeter of the figure is the sum of the lengths of all its sides.

We have two unknown length, so let's find their lengths first.

x= 10 -6= 4 cm

y= 9 -2= 7cm

Let's add all the lengths together to find the perimeter:

Perimeter

= 9 +10 +2 +6 +7 +4

= 38 cm

3 0

2 years ago

25 POINTS HELP PLEASE! Complete the table and pattern. Determine the common difference. Write the explicit rule.

Mumz [18]

Answer:

Look below for the answers.

Step-by-step explanation:

What I'm going to do is one of these very carefully and leave the other 2 to you. They follow exactly the same pattern and once you see one of them done, you should be able to do any of them.

Six

Step one

Find the common difference.

Two values on the second line are always together so subtract the higher number one from the lower numbered on.

n = 3 and n = 4 on this question are side by side. That is you have f(4) and f(3)

ALWAYS subrract the lower numbered one from the higher numbered one

d = f(4) - f(3) = 60 - 64 = - 4

Step Two

Find the first term.

The first term is ALWAYS f(1). Always. There is never any kind of exception. f(1) in this case is 72

Step Three

Write the general explicit term

The general formula for the explicit Formula is ALWAYS

tn = first term + (n -1)*d

first term = 72

d = - 4 from above.

Explicit formula = 72 + (n - 1)*(-4) So the fifth term is

Example

t5 = 72 + (5 - 1)*(-4)

t5 = 72 + 4*(-4)

t5 =72 - 16

t5 = 56

Step Four

Write the Recursive formula

It is always in the same formal

tn = t_(n - 1) + (common difference)

tn = t_(n - 1) - 4 in this case

Example

Find t2

t2 = t1 - 4

t2 = 72 - 4

t2 = 68

If you do the other two, you can leave them in my PM and I will mark them.

5 0

4 years ago

I can't figure it out

luda_lava [24]

Find the average of those numbers, add all the divide by 5

7 0

3 years ago

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