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mixas84 [53]
3 years ago
8

Helpppppppppppppppp please y’all

Mathematics
2 answers:
max2010maxim [7]3 years ago
7 0

\sf{3. \ \ Given : \dfrac{2}{3} - \dfrac{5}{4} + \dfrac{7}{2}}

Let us solve the first two fractions : The LCM of 3 and 4 is 12

\sf{\implies \dfrac{4(2) - 5(3)}{12} + \dfrac{7}{2}}

\sf{\implies \dfrac{8 - 15}{12} + \dfrac{7}{2}}

\sf{\implies \dfrac{-7}{12} + \dfrac{7}{2}}

LCM of 2 and 12 is 12

\sf{\implies \dfrac{-7 + 7(6) }{12}}

\sf{\implies \dfrac{-7 + 42}{12}}

\sf{\implies \dfrac{35}{12}}

\sf{\implies 2 +\dfrac{11}{12}}

\sf{\implies 2 \dfrac{11}{12}}

---------------------------------------------------------------------------------------

\sf{4. \ \ Given : \dfrac{(2 - 7)^2 + 5}{3}}

\sf{\implies \dfrac{(-5)^2 + 5}{3}}

\sf{\implies \dfrac{25 + 5}{3}}

\sf{\implies \dfrac{30}{3}}

\sf{\implies 10}

worty [1.4K]3 years ago
5 0

Answer:

2/3-5/4+7/2

Step-by-step explanation:

  1. collect like terms. that is the positive and negative terms
  2. 2/3+7/2-5/4
  3. lcm of 3 and 2 is 6 hence 2/3+7/2= 25/6
  4. 25/6-5/4....lcm of 6 and 4 is 12 hence 25/6-5/4=35/12
  5. the answer in its mixed fraction is <em>2</em><em> </em><em>and</em><em> </em><em>1</em><em>1</em><em>/</em><em>1</em><em>2</em>
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Nookie1986 [14]

Answer:

Step-by-step explanation:

surface area of sphere=a

4pir^2=a

r^2=a/4p

r=root(a/4pi)

if radius is doubled

r1=2root(a/4pi)

r1^2=4(a/4pi)

a/a1=(4pia/4pi)/(4pi 4a/4pi)=1/4

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6 0
2 years ago
The room shown below right is 14 ft by 10 ft. Find the dimensions of each piece of furniture to the nearest tenth . 16))
DENIUS [597]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

Please find the image file of the question:

The dresser dimension is:

L= 6.0 \ feet\\\\ W= 3.0 \ feet

The bed dimension is:

L = 7.1\  feet\\\\W = 5.7\  feet

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L = 2.8 \ feet\\\\W= 2.8 \ feet

6 0
3 years ago
I need help please :(<br> The last one is 30,21,11
Shalnov [3]
It is b because it makes sense
3 0
3 years ago
Find the distance between the two points.
Harrizon [31]
<h2>Answer</h2>

2\sqrt{10}

<h2>Explanation</h2>

1. Use Distance formula

Important to use distance formula in such problems, so keep this formula memorized for future use.

The formula to find distance amongst two points is

\sqrt{(x^2-x^1)^2 + (y^2 - y1)^2}

2. Plug in the numbers into the formula:

1 -(-1)^2 + 3 - (-3)^2

2^2=4

6^2 = 36

36 + 4 = 40

3. Find the square root of 40.

\sqrt{40}

Simplify further:

2\sqrt{10}

3 0
3 years ago
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lisabon 2012 [21]
The averge is 25 because the negitive truns into a positive
7 0
3 years ago
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