1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
r-ruslan [8.4K]
2 years ago
11

Calculate the frequency of a wave with a speed of 250m/s and a wavelength of 50m.

Mathematics
1 answer:
WARRIOR [948]2 years ago
7 0

Answer:

<h3>formulas</h3>

<em><u>frequency</u></em><em><u>=</u></em><em><u>spee</u></em><em><u>d</u></em><em><u>/</u></em><em><u>wavele</u></em><em><u>ngth</u></em>

<em><u>f</u></em><em><u>=</u></em><em><u>2</u></em><em><u>5</u></em><em><u>0</u></em><em><u>/</u></em><em><u>5</u></em><em><u>0</u></em>

<em><u>f</u></em><em><u>=</u></em><em><u>5</u></em><em><u>0</u></em><em><u>h</u></em><em><u>z</u></em>

You might be interested in
Matt decides the length of his table will be 15 in. He calculates that the area of the table is 30 in. squared. Determine if Mat
Allushta [10]

Answer:No Matt's calculation is not correct.

Step-by-step explanation:

We have to multiply by the number of the area.If it is 4 inches we multiply by 4

15 x 4 =60

A=4 inches squared

A=LxW (length x width )

so you can say that:

Matt is incorrect because He skipped  the step of multiplying 2 by 2 in the formula which is where we get 4 from.

8 0
2 years ago
What is the solution to the system <br><br> A. (-3,1)<br> B. (0,3<br> C. (1,3)<br> D. (1,-1)
UNO [17]

Answer:

C

Step-by-step explanation:

the lines are intersecting at 1,3

5 0
2 years ago
Read 2 more answers
Multiply the following complex numbers: (-7+ ) and ( + i). Show all work and explain the steps you are taking in the work.
notka56 [123]

Answer:

Step-by-step explanation:

in complex number land there are two distict parts real.. the first number and imaginary.. the second number with the i

if your problem really only has a 7 and an i in it.. then it looks like below

7 * i  = 7i

but..I suspect you just left out a bit of the problem.. repost .. i'll answer it again if the problem is different that what you posted already  :)

8 0
2 years ago
Solve the proportions using cross products. Round to the nearest hundredth is necessary. 21miles/49hours = 15miles h hours
SSSSS [86.1K]

\dfrac{21}{49}=\dfrac{21:7}{49:7}=\dfrac{3}{7}\\\\\dfrac{21}{49}=\dfrac{15}{h}\to\dfrac{3}{7}=\dfrac{15}{h}\qquad\text{cross multiply}\\\\3h=(7)(15)\\\\3h=105\qquad\text{divide both sides by 3}\\\\\boxed{h=35}\\\\Answer:\ 35\ hours

8 0
3 years ago
-4(x-2)+5x=0
dem82 [27]

Answer:

x + 8

Step-by-step explanation:

-4(x - 2) + 5x = 0

-4x + 8 + 5x = 0

<em><u>x + 8 = 0</u></em>

8 0
2 years ago
Other questions:
  • A cone-shaped paper drinking cup is to be made to hold 27 cm of water. Find the height h and radius r of the cup that will use t
    6·1 answer
  • What is the sum of -17 and -4
    13·2 answers
  • The product of negative 5 and negative 4 increased by 3 equals
    7·1 answer
  • 3 tins of beans and 4 tins of tomatoes cost 2.73. 5 tins of beans cost 1.55. how much is one tin of tomatoes?​
    11·2 answers
  • Olivia bought a coat for a trip to Alaska and used a coupon for 20% off the coat price. The total cost of her coat, with the dis
    8·1 answer
  • (Geometry Question) <br> For Tangent A, would it be 1.05 or 0.9524?
    10·2 answers
  • I need help with 7x8 and 2/5
    9·2 answers
  • 6
    9·1 answer
  • Solve. 9(x+1)=4-2(9x+5)
    5·2 answers
  • 5. The area of the trapezoid is 75 square inches. Find the height of the trapezoid. And it’s two bases are 10 and 15.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!