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
Bumek [7]
4 years ago
14

Rename 4 thousand 7 thousand

Mathematics
2 answers:
aniked [119]4 years ago
8 0
For 4 thousand it's 4000 and for 7 thousand it's 7000
navik [9.2K]4 years ago
7 0
4,700 is 4 thousand and 7 hundred

But for 4 thousand it's 4,000 and for 7 thousand it's 7,000

You might be interested in
How do I simplify the radical expression. √8-4√2
WITCHER [35]
√8 = √(4x2)  = 2√2

4√2 =4√2

2√2-4√2 = -2√2


3 0
3 years ago
How do i solve -2y=8
Viefleur [7K]
If you're trying to solve for y
-2y = 8
Divide -2 to both sides
\frac{-2y}{-2} =  \frac{8}{-2}
Cancel out the -2 on the left, Divide the -2 to the 8 on the right so
y = -4
4 0
4 years ago
Read 2 more answers
3x^2(x^3-1)+2x^3(2x^2+2) <br> Whats the simplified answer?
ahrayia [7]

Answer:

\large\boxed{7x^5+4x^3-3x^2}

Step-by-step explanation:

3x^2(x^3-1)+2x^3(2x^2+2)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=(3x^2)(x^3)+(3x^2)(-1)+(2x^3)(2x^2)+(2x^3)(2)\qquad\text{use}\ a^na^m=a^{n+m}\\\\=3x^{2+3}-3x^2+4x^{3+2}+4x^3\\\\=3x^5-3x^2+4x^5+4x^3\qquad\text{combine like terms}\\\\=(3x^5+4x^5)-3x^2+4x^3\\\\=7x^5+4x^3-3x^2

4 0
3 years ago
A small black cloth bag holds two red counters, two green counters, two
pentagon [3]

Answer:

1/14

Step-by-step explanation:

P(red, then black) = \frac{2}{8} · \frac{2}{7} = \frac{4}{56} = \frac{1}{14} (simplifed form)

7 0
3 years ago
A tank contains 30 lb of salt dissolved in 500 gallons of water. A brine solution is pumped into the tank at a rate of 5 gal/min
Dmitry [639]

At any time t (min), the volume of solution in the tank is

500\,\mathrm{gal}+\left(5\dfrac{\rm gal}{\rm min}-5\dfrac{\rm gal}{\rm min}\right)t=500\,\mathrm{gal}

If A(t) is the amount of salt in the tank at any time t, then the solution has a concentration of \dfrac{A(t)}{500}\dfrac{\rm lb}{\rm gal}.

The net rate of change of the amount of salt in the solution, A'(t), is the difference between the amount flowing in and the amount getting pumped out:

A'(t)=\left(5\dfrac{\rm gal}{\rm min}\right)\left(\left(2+\sin\dfrac t4\right)\dfrac{\rm lb}{\rm gal}\right)-\left(5\dfrac{\rm gal}{\rm min}\right)\left(\dfrac{A(t)}{50}\dfrac{\rm lb}{\rm gal}\right)

Dropping the units and simplifying, we get the linear ODE

A'=10+5\sin\dfrac t4-\dfrac A{10}

10A'+A=100+50\sin\dfrac t4

Multiplying both sides by e^{10t} allows us to identify the left side as a derivative of a product:

10e^{10t}A'+e^{10t}A=\left(100+50\sin\dfrac t4\right)e^{10t}

\left(e^{10}tA\right)'=\left(100+50\sin\dfrac t4\right)e^{10t}

e^{10t}A=\displaystyle\int\left(100+50\sin\dfrac t4\right)e^{10t}\,\mathrm dt

Integrate and divide both sides by e^{10t} to get

A(t)=10-\dfrac{200}{1601}\cos\dfrac t4+\dfrac{8000}{1601}\sin\dfrac t4+Ce^{-10t}

The tanks starts off with 30 lb of salt, so A(0)=30 and we can solve for C to get a particular solution of

A(t)=10-\dfrac{200}{1601}\cos\dfrac t4+\dfrac{8000}{1601}\sin\dfrac t4+\dfrac{32,220}{1601}e^{-10t}

6 0
4 years ago
Other questions:
  • (30 Points!)
    7·2 answers
  • A blueprint of a house shows a
    9·1 answer
  • Order the fractions least to greatest 3/4,2/5,5/8,1/2
    7·1 answer
  • Jessica loves to read. She reads at a speed of 3 pages per minute. How many pages can she read in 2 hours? (First concert 2 hour
    14·1 answer
  • Giả sử tỷ lẹ bệnh nhân tại 1 thành phố là a%
    5·1 answer
  • Perform the indicated operation. Be sure the answer is reduced.
    11·1 answer
  • Calculate the length of x.
    13·1 answer
  • Write the equation of the circle graphed below
    9·1 answer
  • Help me out please!!!!!!!
    5·1 answer
  • A local fast food restaurant takes in $9000 in a 4 hour period, where the amount taken in varies directly with the number of hou
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!