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saw5 [17]
3 years ago
7

Find sum or difference.1/6 + 3/8A. 4/6B. 4/8C. 4/14D. 13/24

Mathematics
2 answers:
Vaselesa [24]3 years ago
7 0
<span>1/6 + 3/8
= 4/24 + 9/24
= 13/24

answer
</span><span>D. 13/24</span>
Natasha_Volkova [10]3 years ago
7 0

find common denominator:

6*4 =24, 8*3 = 24

1/6 = 4/24

3/8 = 9/24

4/24 + 9/24 = 13/24

 Answer is D

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What is (64x^2y^3)-1/2 as radical expression?
oksano4ka [1.4K]

Answer:

\frac{1}{8xy \sqrt{y} }

Step-by-step explanation:

(64 {x}^{2}  {y}^{3} )^{  - \frac{ 1 }{2} }  \\  \\  =  \frac{1}{(64 {x}^{2}  {y}^{3} )^{\frac{ 1 }{2} } }  \\  \\  =  \frac{1}{ \sqrt{64 {x}^{2}  {y}^{3}} }  \\  \\  =  \frac{1}{ \sqrt{ {(8xy)}^{2} y} }  \\  \\  =  \frac{1}{8xy \sqrt{y} }

3 0
2 years ago
Calculate the length of ac
svlad2 [7]

Answer:

  12.1 cm

Step-by-step explanation:

Using the law of sines, we can find angle C. Then from the sum of angles, we can find angle B. The law of sines again will tell us the length AC.

  sin(C)/c = sin(A)/a

  C = arcsin((c/a)sin(A)) = arcsin(8.2/13.5·sin(81°)) ≈ 36.86°

Then angle B is ...

  B = 180° -A -C = 180° -81° -36.86° = 62.14°

and side b is ...

  b/sin(B) = a/sin(A)

  b = a·sin(B)/sin(A) = 13.5·sin(62.14°)/sin(81°) ≈ 12.0835

The length of AC is about 12.1 cm.

_____

<em>Comment on the solution</em>

The problem can also be solved using the law of cosines. The equation is ...

  13.5² = 8.2² +b² -2·8.2·b·cos(81°)

This is a quadratic in b. Its solution can be found using the quadratic formula or by completing the square.

  b = 8.2·cos(81°) +√(13.5² -8.2² +(8.2·cos(81°))²)

  b = 8.2·cos(81°) +√(13.5² -(8.2·sin(81°))²) . . . . . simplified a bit

3 0
3 years ago
Read 2 more answers
-30=q-10+11q<br><br> Pls help me answer this
Leno4ka [110]
Combine q terms
-30 = 12q - 10
Add 10 to both sides
-20 = 12q
Simplify
Q = -5/3
5 0
3 years ago
What does cubed mean
allochka39001 [22]

Answer:

A cube number is a number multiplied by itself 3 times.

Step-by-step explanation:

A cubed number looks like this: x^{3}

The x is whatever number is being cubed.

3 0
3 years ago
71. the expression 14x 3 represents the perimeter of the triangle. what is the length of the third side? 3x 2 7x - 4
Alex

The Length of third side of the triangle is 4x +5

What is the Triangle?

A triangle is a three-sided polygon that consists of three edges and three vertices. The most important property of a triangle is that the sum of the internal angles of a triangle is equal to 180 degrees. This property is called angle sum property of triangle.

How to determine the length of the third side of the Triangle?

The given parameters are:

Length of the first side = 3x+2

Length of the second side =7x-4

Perimeter of the triangle =14x+3

Now, The perimeter is the sum of the sides of lengths

So, we have

Perimeter = sum of the sides of lengths

According to the question:

14x+3 =3x+2 +7x -4 + third side

Evaluate the like terms

14x-10x = -2 -3

third side = 4x + 5

Hence, The length of the third side of the triangle is 4x+5

Learn more about of perimeter of the triangle

brainly.com/question/19214072

#SPJ4

4 0
1 year ago
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