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
Volgvan
2 years ago
5

Need help! Can anyone please help me? It would be much appreciated. Please view the attached photo. Will mark as brainliest!

Mathematics
1 answer:
seraphim [82]2 years ago
6 0

Answer:

  B)  0.0073 mm/s

Step-by-step explanation:

The rate of change of area is the product of the circumference and the rate of change of radius:

  dA/dt = C·dr/dt

  dr/dt = (dA/dt)/C

Of course, C = 2πr, so ...

  dr/dt = (7 mm²/s)(2π·152 mm) ≈ 7/955.04 mm/s ≈ 0.0073 mm/s

You might be interested in
The table shows the ratio between the number of tickets ordered and their cost: Number of Tickets Cost (dollars) 5 20 7 28 9 36
Charra [1.4K]

9514 1404 393

Answer:

  • (1, 4)
  • (2, 8)
  • (3, 12)

Step-by-step explanation:

The ratios all have ...

  first number : second number = 1 : 4

Using first numbers of 1, 2, 3, the second numbers can be found by multiplying these by 4. (1, 4), (2, 8), (3, 12)

__

You plot these (x, y) points the same way you plot <em>any</em> point on a coordinate grid. The first (x) value is the horizontal distance from the vertical axis. Positive is to the right. The second (y) value is the vertical distance from the horizontal axis. Positive is up.

__

Of course, the origin is where the horizontal and vertical axes meet. It can be convenient to find one of the coordinates on its respective axis, then use the other coordinate to find the point at the desired distance from that axis.

Usually, you would choose the axis on the basis of how easy it is to determine exactly where the coordinate lies. If the y-axis is marked every 5, for example, it might be hard to determine where a multiple of 4 will lie. Locating the x-coordinate on the x-axis may be an easier way to start.

7 0
3 years ago
What is the area of this circle?<br><br> a 1,017.36<br> b 254.34<br> c 28.26<br> d 56.52
Licemer1 [7]

Answer:

b

Step-by-step explanatiobn:

b

5 0
2 years ago
Read 2 more answers
Solve the formula Ax+By = C for A.
jok3333 [9.3K]

Answer:

A = \frac{C - By}{x}

Step-by-step explanation:

Given

Ax + By = C

Required

Solve for A

The question implies that we make A the subject of the formula.

Start by subtracting By from both sides of the equation by x

Ax + By - By= C - By

Ax = C - By

Divide both sides by x

\frac{Ax}{x} = \frac{C - By}{x}

A = \frac{C - By}{x}

<em>Solved</em>

8 0
2 years ago
Which is equivalent to 8−+3
Natalija [7]

Answer: -5 + 0

Step-by-step explanation:

Ok

3 0
3 years ago
Bianca wrote the steps for her solution to the equation 2.3 + 8(1.3x – 4.75) = 629.9. She left out the description for the last
ryzh [129]
I believe the correct answer from the choices listed above is the last option. THe missing step of her solution would be the statement "<span>Divide both sides of the equation by 10.4." Hope this answers the question. Have a nice day.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • In ΔPQR, the measure of ∠R=90°, QP = 29, RQ = 21, and PR = 20. What ratio represents the cosine of ∠P?
    15·1 answer
  • A fish tank is 60% if the way full when it has 25 gallons. How many total gallons can the fish tank hold ?
    12·1 answer
  • What is the product of 44(4–7)(4)?
    10·2 answers
  • Solve 247 divided by 10(^2) . and 247x10 (^2)<br><br> what's different about the two answers?
    10·1 answer
  • What is the conversion factor to convert cups to liters?
    11·1 answer
  • 0.018 as a fraction in simplest form
    11·2 answers
  • 3x + 4y = 17<br> -6x = 10y - 39<br> How many solutions
    7·1 answer
  • I NEED HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPP I don’t get it plz tell me the answer
    7·1 answer
  • /d/e/1FAIpQLSclFkZlgkRij_Rf2abUD8YgyQtKMgZR65VhFeEjQ96N34Edog/formResponse
    12·2 answers
  • HELP DUE IN 10 MINS!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!