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
soldier1979 [14.2K]
3 years ago
8

What is 2/5 + 1/4+7/10

Mathematics
2 answers:
Stolb23 [73]3 years ago
6 0

Answer:

27/20 or 1 7/20

Step-by-step explanation:

1) make the denominators the same

  • 2/5 multiplied by 4 on top and bottom =8/20
  • 1/4 multiply by 5 = 5/20
  • 7/10 multiply by 2 = 14/20

2) add the numerators

  • 8+5+14=27

3) the denominator stays the same

  • 27/20

4) simplify it to 1 7/20

Aleks04 [339]3 years ago
3 0

Answer:

1 7/20

Step-by-step explanation:

You might be interested in
Find a particular solution to y" - y' + 9y = 3 sin 3x
Dima020 [189]

Answer:

cos3x

Step-by-step explanation:

y" - y' + 9y = 3 sin 3x

D^{2}y-Dy+9y=3 sin3x

y=\frac{3 sin 3x}{(D^{2} -D+9}=3 sin 3x

here D^2 will be replaced by  \alpha^2 where \alpha is coefficient of x

y=\frac{3 sin 3x}{-3^{2} -D+9}

y=-3\frac{sin 3x}{D}

y=-3\int\ {sin 3x} \, dx

y=-3\frac{cos3x}{-3}

y=cos3x

hence Particular solution is cos3x

6 0
3 years ago
Can someone help me whose good at geometry?
Pavel [41]
Actually I can help you in three of them as the number "3" is not confined between the arrays ND and NE

So:
It would be
angle END
or
angle DNE
or
angle N
6 0
4 years ago
Which equation is equivalent to <br> −<br> (<br> 6<br> −<br> x<br> )<br> =<br> 24<br> ?
kondor19780726 [428]
(6-x)=24

X=-18

If you subtract a negative number with a positive number it adds them together making it positive (6- -18)=24
8 0
3 years ago
Use simpson's rule with n = 10 to approximate the area of the surface obtained by rotating the curve about the x-axis. compare y
Lubov Fominskaja [6]

y = ln x , 1 <= x <= 3, about x axis and n = 10, dy/dx = 1/ x

S = (b a) ∫ 2π y √( 1 + (dy/dx) ^2) dx

so our f(x) is 2π y √( 1 + (dy/dx) ^2)

(b - a) / n = / 3 = (3-1) / 30 = 1/15

x0 = 1 , x1 = 1.2, x2 = 1.4, x3 = 1.6 ....... x(10) = 3

So we have , using Simpsons rule:-

S10 = (1/15) ( f(x0) + 4 f(x1) + 2 f)x2) +.... + f(x10) )

= (1/15) f(1) + f(3) + 4(f(1.2) + f(1.6) + f(2) + f(2.4) + f(2.8)) + 2(f(1.4) + f(1.8) + f(2.2) + f(2.6) )

( Note f(1) = 2 * π * ln 1 * √(1 + (1/1)^2) = 0 and f(3) = 2π ln3√(1+(1/3^2) = 7,276)

so we have S(10)

= 1/15 ( 0 + 7.2761738 + 4(1.4911851 +


5 0
4 years ago
Find the value of x. Sketch the image of the figure after the translation
Yuliya22 [10]

Answer:

dimo ba kayang answeran

Step-by-step explanation:

kaya muyan

4 0
3 years ago
Other questions:
  • In 783341693, what digit is in the ten thousands place?
    14·1 answer
  • What principal amount will grow to $300 if invested at 6.5 compounded weekly for 4 years
    12·1 answer
  • What is spqure root and how do i use it?<br><br>are they any math apps or for Android?
    14·1 answer
  • Translations, rotatation, and reflections quiz
    9·1 answer
  • Can someone please help me?
    15·1 answer
  • Can someone please help me!! Ive been asking for help and I not getting any.. please help
    15·1 answer
  • Which expression is equivalent to the model? (look in attached image)
    13·1 answer
  • POSSIBLE POINTS: 8
    5·1 answer
  • 23 + 72 = ????<br> What is the answer?
    6·1 answer
  • A theater has 990 total seats. There are r rows of seats in the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!