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
Komok [63]
3 years ago
5

Solve 3 x 40 draw a model to show your answer

Mathematics
1 answer:
snow_tiger [21]3 years ago
5 0
Hello this is my easy way to multiply with zeros.What you do is ignore the zero like its not even there next you multiply whats left so we multiply 3 x 4 and that is 12.next we add the zero and that's it.Hoped I Helped! :D
You might be interested in
What is the distance between (-4,-8) and (-4,0) round to the nearest tenth if needed​
mixer [17]

Answer:

8

Step-by-step explanation:

Distance between x coordinates: 0 units

Distance between y coordinates: 8 units

sqrt(0^2+8^2)

8 units

6 0
3 years ago
The table shows the number of the free throws each player made during the last basketball season determine if each statement is
Rina8888 [55]

Answer:

True

Step-by-step explanation:hi

6 0
3 years ago
A pond forms as water collects in a conical depression of radius a and depth h. Suppose that water flows in at a constant rate k
Scrat [10]

Answer:

a. dV/dt = K - ∝π(3a/πh)^⅔V^⅔

b. V = (hk^3/2)/[(∝^3/2.π^½.(3a))]

The small deviations from the equilibrium gives approximately the same solution, so the equilibrium is stable.

c. πa² ≥ k/∝

Step-by-step explanation:

a.

The rate of volume of water in the pond is calculated by

The rate of water entering - The rate of water leaving the pond.

Given

k = Rate of Water flows in

The surface of the pond and that's where evaporation occurs.

The area of a circle is πr² with ∝ as the coefficient of evaporation.

Rate of volume of water in pond with time = k - ∝πr²

dV/dt = k - ∝πr² ----- equation 1

The volume of the conical pond is calculated by πr²L/3

Where L = height of the cone

L = hr/a where h is the height of water in the pond

So, V = πr²(hr/a)/3

V = πr³h/3a ------ Make r the subject of formula

3aV = πr³h

r³ = 3aV/πh

r = ∛(3aV/πh)

Substitute ∛(3aV/πh) for r in equation 1

dV/dt = k - ∝π(∛(3aV/πh))²

dV/dt = k - ∝π((3aV/πh)^⅓)²

dV/dt = K - ∝π(3aV/πh)^⅔

dV/dt = K - ∝π(3a/πh)^⅔V^⅔

b. Equilibrium depth of water

The equilibrium depth of water is when the differential equation is 0

i.e. dV/dt = K - ∝π(3a/πh)^⅔V^⅔ = 0

k - ∝π(3a/πh)^⅔V^⅔ = 0

∝π(3a/πh)^⅔V^⅔ = k ------ make V the subject of formula

V^⅔ = k/∝π(3a/πh)^⅔ -------- find the 3/2th root of both sides

V^(⅔ * 3/2) = k^3/2 / [∝π(3a/πh)^⅔]^3/2

V = (k^3/2)/[(∝π.π^-⅔(3a/h)^⅔)]^3/2

V = (k^3/2)/[(∝π^⅓(3a/h)^⅔)]^3/2

V = (k^3/2)/[(∝^3/2.π^½.(3a/h))]

V = (hk^3/2)/[(∝^3/2.π^½.(3a))]

The small deviations from the equilibrium gives approximately the same solution, so the equilibrium is stable.

c. Condition that must be satisfied

If we continue adding water to the pond after the rate of water flow becomes 0, the pond will overflow.

i.e. dV/dt = k - ∝πr² but r = a and the rate is now ≤ 0.

So, we have

k - ∝πa² ≤ 0 ---- subtract k from both w

- ∝πa² ≤ -k divide both sides by - ∝

πa² ≥ k/∝

5 0
3 years ago
Please help ASAP!!<br>What is the sum of the square root of 676 and square of 24​
Amiraneli [1.4K]

Step-by-step explanation:

square root of 676 is equal to 26

square of 24 is equal to 576

576+26 = 602

8 0
3 years ago
Read 2 more answers
HELP I WILL GIVE BRAINIEST
lilavasa [31]

Answer:

C

Step-by-step explanation:

common sense.

5 0
3 years ago
Other questions:
  • Complete the steps to solve the equation 4e2 + 2x = x − 3 by graphing.
    7·1 answer
  • As part of a school contest, Sarah and Luis are playing a math game. Sarah must pick a number between 1 and 50 and Luis clues so
    11·2 answers
  • Help please !!!!!!!!!!
    11·1 answer
  • Which best describes the graph of the function f(x) = 4(1.5)*?<br>​
    13·1 answer
  • Find the measure of the indicated angle
    13·1 answer
  • The Atlanta Journal Constitution conducted a survey of 900 registered voters to determine which voting method they prefer. The A
    9·1 answer
  • The probability that Gerald makes a three-point shot in basketball is 20\%20%20, percent. For practice, Gerald will regularly sh
    10·1 answer
  • PLEASE HELP!
    11·2 answers
  • How many triangles???????
    6·2 answers
  • Use appropriate algebra and theorem 7. 2. 1 to find the given inverse laplace transform. (write your answer as a function of t.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!