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
vekshin1
3 years ago
10

What types of problems can be solved using the GCF what types of problems can be solved using the least common multiple

Mathematics
1 answer:
melamori03 [73]3 years ago
5 0
The Least Common Multiple is used to add fractions with unlike denominators:
Three things can happen:
1/3 + 1/7 - the LCM is the product of the denominators (in this case 21)
2/8 + 3/16 - the LCM is the greater denominator  (in this case 16)
2/9 + 5/6 - the LCM is lower than the product of the denominators (in this case it is 18)

The Greatest Common Factor is used to reduce fractions quickly:
\frac{48}{72} ÷ \frac{24}{24} = \frac{2}{3}
By using the GCF -in this case 24, I reduced the fraction in a single step.
If I kept dividing by 2/2 (not the GCF), it would take much longer:
48/72 = 24/36 = 12/18 = 6/9 and then I would still have to divide 6/9 by 3/3 to get 2/3


You might be interested in
25 7/5 tons = ib ......
Fittoniya [83]

Answer:

c. 51,400

Step-by-step explanation:

25 x 2,000=50,000

2,000 x .7= 1,400

50,000+1,400=51,400

5 0
3 years ago
Consider the following region R and the vector field F. a. Compute the​ two-dimensional curl of the vector field. b. Evaluate bo
Shalnov [3]

Looks like we're given

\vec F(x,y)=\langle-x,-y\rangle

which in three dimensions could be expressed as

\vec F(x,y)=\langle-x,-y,0\rangle

and this has curl

\mathrm{curl}\vec F=\langle0_y-(-y)_z,-(0_x-(-x)_z),(-y)_x-(-x)_y\rangle=\langle0,0,0\rangle

which confirms the two-dimensional curl is 0.

It also looks like the region R is the disk x^2+y^2\le5. Green's theorem says the integral of \vec F along the boundary of R is equal to the integral of the two-dimensional curl of \vec F over the interior of R:

\displaystyle\int_{\partial R}\vec F\cdot\mathrm d\vec r=\iint_R\mathrm{curl}\vec F\,\mathrm dA

which we know to be 0, since the curl itself is 0. To verify this, we can parameterize the boundary of R by

\vec r(t)=\langle\sqrt5\cos t,\sqrt5\sin t\rangle\implies\vec r'(t)=\langle-\sqrt5\sin t,\sqrt5\cos t\rangle

\implies\mathrm d\vec r=\vec r'(t)\,\mathrm dt=\sqrt5\langle-\sin t,\cos t\rangle\,\mathrm dt

with 0\le t\le2\pi. Then

\displaystyle\int_{\partial R}\vec F\cdot\mathrm d\vec r=\int_0^{2\pi}\langle-\sqrt5\cos t,-\sqrt5\sin t\rangle\cdot\langle-\sqrt5\sin t,\sqrt5\cos t\rangle\,\mathrm dt

=\displaystyle5\int_0^{2\pi}(\sin t\cos t-\sin t\cos t)\,\mathrm dt=0

7 0
3 years ago
Use the distributive property to write an expression that is equivalent to each given property.
Nadya [2.5K]

Answer:

-6x+12

-9+5a

7x+63

8y-4/5x-12

Step-by-step explanation:

To solve these all you have to do is take the number outside of the parenthesis and multiply them by each term.

-3(2x)-3(-4) All I did here was expand the problem to show what i mean by terms.

-6x+12

Do this for each problem.

0.1(-90)+0.1(50a)

-9+5a

-7(-x)-7(-9) For this one you are taking negatives times negatives so each answer will be positive.

7x+63

4/5(10y)+4/5(-x)+4/5(-15)

8y-4/5x-12

3 0
3 years ago
What do these numbers have in common<br> 73,40,84,62,95
JulsSmile [24]

Answer:

your answer: They are all numbers

8 0
3 years ago
What is x divided by 8 greater than equal to 9
Stolb23 [73]

Answer:

x≥72

Step-by-step explanation:

Put into an equation then solve.

x/8≥9

x8    x8

x≥72

Hope that helped!

4 0
3 years ago
Other questions:
  • What is the value of the 8 in 381,697?
    5·2 answers
  • How to write 0.326 in two forms
    14·1 answer
  • A 455 foot fence encloses a pasture. What is the length of each side of the pasture? Write and solve an equation
    8·1 answer
  • Three of nine softball players play outfield.what fraction of the players play outfield? Write the answer as a reduced fraction
    12·1 answer
  • In a town election ,Azeem got 42 percent of the vote cast and Hamza get the remaining votes . If the total number of votes cast
    12·1 answer
  • Four more than a number divided by 2 is ten.​
    15·2 answers
  • A box of 10 bars of soap cost $10.88 while the same brand with four more bars cost $17.62 which is the better buy round your ans
    7·1 answer
  • Make a table for f(x) = 2.5x − 10.5 from 2-6. I just need the numbers
    15·1 answer
  • Evaluate the expression for x = 2 and y = 4<br> 16x^(0 +2x^(2* y^(-1)))
    6·1 answer
  • Can someone help me answer this
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!