# Mathematics Assignment

28.

TOA

Tan 120= 4000/x     (multiply each side of the equation by x)

x Tan 120=4000       (divide each side by Tan 120 )

x Tan 120/ Tan 120 =4000/ Tan 120

x=4000/ Tan 120

x= 18818.52 ft

29.

TOA

Tan 100= 50/x     (multiply each side of the equation by x)

x Tan 100=50       (divide each side by Tan 120 )

x Tan 100/ Tan 100 =500/ Tan 100

x=500/ Tan 100

x= 283.56 ft

30.

TOA

Tan 15.60= x/205     (multiply each side of the equation by 205)

205 Tan 15.60=x

x= 57.24 yards

31.

SOH

Sin x = 15/85

Sin x =0.1765       (Find the sin inverse of 0.1765)

x= Sin—1 0.1765

x= 10.160

32.

CAH

Cos x = 10/30

cos x =0.3333       (Find the cos inverse of 0.1765)

x= Cos—1 0.3333

x= 70.530

33.

CAH

Cos 170= 20/x     (multiply each side of the equation by x)

x Cos 170=20       (divide each side by Cos 170 )

x Cos 170/ Cos 170 =20/ Cos 170

x=20/ Cos 100

x= 20.91ft

Rafter= x + overhang

Rafter= 20.91 + 1     (12 inch= 1 foot)

Rafter= 21.91 feet

34.

Sin 140= x/25 (multiply each side by 25)

25 Sin 140= x

x= 6.05 feet

35.

Cos 180= x/ 38 (multiply each side by 38)

38 Cos 180= x

x= 36.14 inches

Equations

y=x2 – 4x + 9

y=9, x=0

y=x2 + 4x + 9

y=9, x=0

y=-x2 – 4x + 9

y=9, x=0

y=x2 – 4x + 9

y=-9, x=0

## Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
\$26
The price is based on these factors:
Number of pages
Urgency
Basic features
• Free title page and bibliography
• Unlimited revisions
• Plagiarism-free guarantee
• Money-back guarantee
On-demand options
• Writer’s samples
• Part-by-part delivery
• Overnight delivery
• Copies of used sources
Paper format
• 275 words per page
• 12 pt Arial/Times New Roman
• Double line spacing
• Any citation style (APA, MLA, Chicago/Turabian, Harvard)

# Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

### Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

### Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

### Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

### Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.