Mathematics High School

If a wave has a wavelength of 20 meters and is
traveling at a rate of 60m/s, what is its
frequency?

Answers

Answer 1

Answer:

Frequency of wave = 3 Hertz

Step-by-step explanation:

Given that:

Wavelength of wave = 20 meters

Velocity of wave = 60m/s

We know that:

v = fλ

Here,

v = velocity , f = frequency and λ = wavelength

Putting values in formula

60 = f(20)

20f = 60

Dividing both sides by 20

[tex]\frac{20f}{20}=\frac{60}{20}[/tex]

f = 3 Hertz

Hence,

Frequency of wave = 3 Hertz

Related Questions

Can you please show you work?

Answers

Answer:

8

Step-by-step explanation:

If you replace x with the given answers, the only one that would make both answers the same is 8

Answer:

8

Step-by-step explanation:

7x - 4 = 5x + 12

7x - 5x - 4 = 5x - 5x + 12

2x - 4 = 12

2x - 4 + 4 = 12 + 4

2x = 16

2x/2 = 16/2

x = 8

PLEASE HELP WITH #7, #8, AND #9

EXTRA POINTS AND I WILL VOTE BRAINLIEST

Answers

Answer:

number 8 is below

Step-by-step explanation:

Let integers be:

x, x + 2 (since they are even)

Hope this helps:)

Find the slope between the points (9,54) and (-5,61)

Answers

Answer:

slope=(Y2-Y1)/(X2-X1)

slope=7/-14= -1/2

please give me brainlest

Find the value of y.
26

Answers

So in finding the value of y we are actually finding the adjacent.

Formula: b^2 = c^2 - a^2

y^2 = 26^2 - 18^2
y^2 = 676 - 324
y^2 = 352

Now we are gonna find the square root of both sides.

y^2 (square root) = 352 (square root)
y = 19

Value of y = 18.76 or 19

(1/2) to the second power time 24.0

Answers

Answer:

6

Step-by-step explanation:

how many solutions does 6x−y=−1 6x+y=−1 ​

Answers

Answer:

x=−1/6 and y=0

Step-by-step explanation:

Answer:

There is one solution.

Step-by-step explanation:

x = - 1/6

y = 0

It can be solved simultaneously

6x - y = -1

6x + y = -1

Subtract equation two from equation one

-2y = 0

Divide both sides by-2

y = 0/-2

y = 0

Substitute 0 for y in either of the equations to get x

 

6x - 0 = -1

6x = -1

Divide both sides by 6

x = -1/6

Each side length of the parallelogram at the right is multiplied by 4. Describe the change in the parameter. Justify your answer.

Answers

side length1 = x

side length2 = y

2x + 2y = perimeter

2(4x) + 2(4)y = new perimeter

8x + 8y = new perimeter

new perimeter = 4 times the old perimeter

please help me lol.

Answers

I wish I could lol good luck

what is the solution for X in the equation -4 + 5x - 7 equals 10 + 3 x - 2x

choices:
A- x= 4/21
B- x= 13/4
C- x= 4/13
D- x= 21/4
​

Answers

Answer:

x=21/4

Step-by-step explanation:

A x = 4/21 because it’s the right answer I believe

Help me please on this question. Thanks.

Answers

I’M sorry I don’t understand it

Solve the problem 7 divided by $6.93

Answers

Answer:

1.01010101 U.S. dollars-1

Step-by-step explanation:

Answer:

$0.99

Step-by-step explanation:

16 + ( - 4 1/2 ) show your work

Answers

Answer:

[tex]13 \frac{1}{2}[/tex]

Step-by-step explanation:

[tex]16 + ( - 4 \frac{1}{2} ) = 16 - 4 \frac{1}{2} [/tex]

A company donated $4,250 dollars to a school. There are 50 classes in the school. If each class receives the same amount of money to plan a field trip, how much money does each class receive

*Please show you work :)

Answers

Answer:

Each class receive $85.

Step-by-step explanation:

So what you will be doing is dividing $4,250 and the 50 classes.

Hope this helps or is right at least :)

question 15, i’m sick and i only have until 12am to finish all my missing work and i need to pass to make my parents happy but i’m lowkey sad rn but #swag

Answers

Answer:

-3(x+2)-x

-3-2x

Step-by-step explanation:

Answer:

-3-2x

Step-by-step explanation:

h(t) = -16 + 10t
g(-6) =

Answers

Answer:

-6g

Step-by-step explanation:

If ZBPD and ZDPC have a sum of 72°. What is ZAPC?

A. 180.

B.90.

C.180.

D.18.​

Answers

Hey there!

I don't know if it's too late, but oh well: The answer is 108°

Knowing that supplementary angles add up to 180°, and we also know that we have 2 out of 3 of the angle measures, so we can subtract that from 180:

180 - 72 =108°

Have a terrificly amazing day!

Answer:

∡APC = 108°

Step-by-step explanation:

∡ APB = 180°

∡ DPB + ∡ CPB + ∡APC = 180°

∡ BPD and ∡DPC have a sum of 72°

then:

72° + ∡APC = 180°

∡APC = 180° - 72°

∡APC = 108°

If AC = 52, AB = 8x + 8, and BC = 2x + 4, then the length BC is

Answers

Answer:

12

Step-by-step explanation:

AC = AB + BC

Since we know what each variable equals, we can write out the equation as shown:

52 = 8X + 8 + 2X + 4

Combining like terms:

52 = 10X + 12

Subtract 12 from both sides:

40 = 10X

Divide by 10:

X = 4

Now that we know X, we can figure out BC

BC = 2(4) + 4

BC = 8 + 4

BC = 12

Therefore BC is 12.

PLSSS HELP IM ON A TIME LIMIT

Answers

I think it’s A.....
Not super sure

Lisa has $55 to spend on basketball cards.
NBA pro cards cost $4 each and college
cards cost $2 each. What equation in
standard form determines the number x of
NBA pro cards and the number y of college
cards she can buy?

I need help asap plz

Answers

Answer:

The answer is $55 =$4x * $2y

Step-by-step explanation:

Yx÷2;use x=7,and y=2

Answers

Answer:

7

Step-by-step explanation:

yx ÷ 2

(2)(7) ÷ 2

14 ÷ 2

7

I will add two pictures for context for this question. I'll give brainliest


Her budget is $65 a month. To find out how many gigabytes of data she could use if she chose this plan, she writes C(x)=65 and solves for x. What value of x makes this equation true?

Remember the function is C(x)=30x+5.

Answers

Answer:

Consider all the info you are given:

The monthly allowance is 2 GB...this is basically how much data is included in the the plan so that the monthly pymt is the same every month. When the GBs used goes pass 2GB...there is a cost to that.

You're given C(x) = 30x + 50, the monthly cost of the plan

'x' is the GB of data used OVER the allowance (2GB.)

They put over in italics to give you a hint to the solution.

(a) C(0.7) is the cost when the data used goes over 2GB by 0.7 GB. C(0.7) = 30(0.7) + 5 = 26

The college student would pay $26 when they use an extra 0.7GBs (pass the allowance.)

(b) This part to the problem wants you to figure out how much the overage, pass the 2GBs, the college student can go and only end up paying $50 (the set budget)

So you the solve for x by setting C(x) = 50

30x + 5 = 50

30x = 50 - 5 = 45

x = 45/30

x = 1.5

Remember x is the overage (the GBs over the allowances), so to stay at budget, the college student can use 3.5 GBs of data (2GBs + 1.5 GBs) only pay $50 that month.

Hope this helps...

what is 16/14 in mixed number

Answers

Answer:

1 2/14

Step-by-step explanation:

I don’t think there is such things as a mixed number just a mixed fraction

James is purchasing a new pair of AirPods for $199.99. If the tax rate is 9%, how much will he spend?

Answers

Given:

Price of new AirPods = $199.99

Tax rate = 9%

To find:

How much will he spend?

Solution:

We have,

Price of new AirPods = $199.99

Tax rate = 9%

Tax value = 9% of $199.99

                = [tex]\dfrac{9}{100}\times 199.99[/tex]

                = [tex]17.9991[/tex]

Now,

Total money spend = Price of AirPods + Tax

                                = [tex]199.99+17.9991[/tex]

                                = [tex]217.9891[/tex]

                                [tex]\approx 217.99[/tex]

Therefore, the total money spend by James is $217.99.

Due to erosion, a beach is
disappearing at a rate of -5 feet
per year. How long will it take for
the beach to lose 85 feet

Answers

Answer:

17 years

Step-by-step explanation:

do 85 divided by 5

Answer:

17 years

Step-by-step explanation:

-5 feet = 1 year

To do this you would do:

85 ÷ 5 = 17 years

Hope this helps!

help help help help help help help helphelp help help helphelp help help helphelp help help help

Answers

Answer:

X = 36/17

y = -8/17

Step-by-step explanation:

Since they both equal y, you could use them equal to each other.

(5/2)x-4=(-1/3)x+2

Then solve for x by combining like terms. X should be 36/17. Plug in x to find y in one of the equations. I will use the top one. (5/3)(36/17)-4=y. That should simplify down to (60/17)-4=y. Y would finally equal -(8/17).

Answer:

What the other guy said. I think he is correct.

Step-by-step explanation:

worth 10 points please help

Answers

D. 5/4 * 12/1 equals 60/4 which is 15 then minus 1 to get 14.

imagine you're in a queue to the airport check-in desk if two-thirds of the queue is in front of you and three tenths of the queue is behind you how many people are in the queue​

Answers

2/3 in front x10
3/10 behind x3

20/30 In front
9/30 behind

20/30+9/30= 29/30
30 people are in the queue

Step-by-step explanation:

Let x be the number of people in the queue, including yourself.

We have 2/3 x + 1 + 3/10 x = x.

=> 29/30 x + 1 = x

=> x/30 = 1

=> x = 30.

Hence there are 30 people in the queue.

PLZ HELP ASAP ILL GIVE BRAINLEST PLZ

Answers

Answer:

the answer is yes

Step-by-step explanation:

k(3)=5(3)-3

k(3)=15-3

k(3)=12

12 is the answer

Here is a table giving the thousands of commuters in Alabama in 2015 by transportation method and one-
way length of commute:
Commute duration (one-way)
Private vehicle
Public transportation
Other
Total
< 15 minutes
498
1
27
526
15-29 minutes
-748
2
8
758
30-44 minutes
387
2
4
393
45-59 minutes
145
1
0
146
> 60 minutes
109
3
3
115
Total
1887
9
42
1938
Find the relative frequency marginal distribution of transportation method.
Round to the nearest whole percent.

Answers

Answer:

526

758

393

146

115

Step-by-step explanation:

The relative frequency for private vehicles is 97%, the relative frequency for public transport is 0 and the relative frequency for others is 2.

What is a relative frequency?

It is defined as the frequency that can be evaluated by the two-way frequency table. Usually, we can obtain this frequency by dividing the frequency that is not in the total frequency cell by the total frequency.

We know the formula for the relative frequency:

[tex]\rm Rf = \frac{Frequency}{Total \ frequency}[/tex]

From the data given the Rf value for the private vehicle:

[tex]\rm Rf = \frac{1887}{1928} \times100[/tex]

Rf = 0.97×100 = 97%

For public transport:

= 0.005×100

= 0.5

= 0  (whole value)

For other:

= 0.022×100

= 2.2

=2 (whole value)

Thus, the relative frequency for private vehicles is 97%, the relative frequency for public transport is 0 and the relative frequency for others is 2.

Learn more about the relative frequency here:

brainly.com/question/8358304

#SPJ2

$18 for 3 bracelets; $30 for 5 bracelets

Answers

Step-by-step explanation:

I don't have my wallet on me. Tho could you further explain?

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