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dusya [7]
3 years ago
8

Janice needs to re-shingle the roof of her house. One bundle of shingles costs $35.99 and covers 2.25 m2.

Mathematics
1 answer:
Zolol [24]3 years ago
4 0
Where is the rest of the question
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I need to get the left side to equal the right side. Keeping the right side alone and not changing it.
likoan [24]

<u>To prove the trigonometric equation:</u>

\sin ^{3} x+\cos ^{3} x=(\sin x+\cos x)(1-\sin x \cos x)

RHS=(\sin x+\cos x)(1-\sin x \cos x)

We know that \sin^2x +\cos^2x=1, substitute this in place of 1.

       =(\sin x+\cos x)(\sin^2x +\cos^2x-\sin x \cos x)

Multiply each term of the first term with each term of the 2nd term.

       =\sin^3x + \sin x \cos^2x-\sin^2 x \cos x+\cos x \sin^2 x + \cos^3 x-\sin x\cos^2 x

Group like terms together.

       =\sin^3x +( \sin x \cos^2x-\sin x\cos^2 x)+(\cos x \sin^2 x-\sin^2 x \cos x) + \cos^3 x

       =\sin^3x +( 0)+(0) + \cos^3 x

       =\sin^3x + \cos^3 x

       = LHS

RHS = LHS

\sin ^{3} x+\cos ^{3} x=(\sin x+\cos x)(1-\sin x \cos x)

Hence proved.

7 0
3 years ago
HELP!!!
Jlenok [28]
You can compose, or create, a parallelogram (a four-sided shape with two sets of opposite, parallel sides) using two shapes, such as triangles or squares. You can decompose, or take apart, a parallelogram by dividing it from opposite corners, either vertically or horizontally.
6 0
2 years ago
Drag a statement or reason to each box to complete this proof.
IRISSAK [1]

Answer:

3 Reasons) Transitive Property of congruence

4 Statements) JN =~ NK

5 Statements) MN =~ NK

6 Reasons) Definition of an isosceles triangle

Hope that helps!


7 0
3 years ago
Regina deposit 3,500 in savings account
bazaltina [42]

Answer:

What do you need to know its not compleate Do you want me to divide or what

Step-by-step explanation:

8 0
3 years ago
What is the area of a triangle that has a base of 15 1/4 in. and a height of 18in.
WARRIOR [948]

Answer:

137.25 inch ²

Area of triangle = 1/2× base × height

= 1/2×15.25×18

= 15.25×9

=137.25 inch²

8 0
3 years ago
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