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agasfer [191]
3 years ago
13

............help plsss T.T

Mathematics
2 answers:
PolarNik [594]3 years ago
4 0

Answer:

a) in division we subtract the index notations

c power 4 / c power 3 = c power 1 or c

d power 5 / d power 3= d power 2

8/2 = 4

answer = 4cd power 2

b)  9/3 = 3

a power 3/ a power 1 = a power 2

b power 5/ b power 2 = b power 3

ans= 3a power 2 b power 3

Pie3 years ago
3 0

Answer:a,  8c^{4} d^{5} /2c^{3} d^{3}

             8c^{3}.c.d^{3}.d^{2} /2c^{3} d^{3}

             ans=4cd^{2}

           ans= b, 9a^{3}  b^{5} /3ab^{2}\\3*3.a^{2}.a.b^{2}.b^{3} /3ab^{2} \\3a^{2}b^{3}

Step-by-step explanation: hope this will help you

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Answer:

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2 years ago
What is the value of x (distance from the edge of the screen to the end of the wall) if the area of the screen is 40 m^2?
erica [24]

The value of x that is the length from the edge of the screen to the end of the wall is equal 3. This is derived from an equation which serves as a function of the Area. See the solution below.

<h3>

What is the calculation for the solution above?
</h3>

Recall that the area of the entire wall is 40m².

(10-2x) (16- 2x) = 40

Expanding the brackets, we have

160-20x-32x + 4x² = 40
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Using the quadratic equation

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Where a = 1
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x = (13 ± 7)/2

Thus x = 10; or x = 3.

x cannot be the answer because it invalidates 16-x<0;

Hence, the correct answer is x = 3

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7 0
2 years ago
Paper and Pencil Construction: Construct a Line Perpendicular to a Given Line through a Point on the Line
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Step-by-step explanation:

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3 years ago
Bob sees a very tall white pine tree. He estimates that the angle of elevation from him to the top of the tree is 77°
vlabodo [156]

Answer:

  86.63 ft

Step-by-step explanation:

The tangent relation applies.

  Tan = Opposite/Adjacent

  tan(77°) = (tree height)/(20 ft)

  tree height = (20 ft)·tan(77°) ≈ 86.63 ft

_____

<em>Additional comment</em>

It is somewhat problematic for Bob to see the top of a white pine tree at that angle of elevation. His view would likely be obscured by the branches of the tree.

8 0
2 years ago
746/40<br><img src="https://tex.z-dn.net/?f=40%20%5C%20746" id="TexFormula1" title="40 \ 746" alt="40 \ 746" align="absmiddle" c
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Answer:

373

Step-by-step explanation:


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3 years ago
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