1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
babymother [125]
3 years ago
14

Simplify the expression.

Mathematics
1 answer:
Nana76 [90]3 years ago
6 0
The answer is the A. I hope this helps!
You might be interested in
Please explain how to do and set up
In-s [12.5K]

A

using the Cosine rule in ΔSTU

let t = SU, s = TU and u = ST, then

t² = u² + s² - (2us cos T )

substitute the appropriate values into the formula

t² = 5² + 9² - (2 × 5 × 9 × cos68° )

   = 25 + 81 - 90cos68°

   = 106 - 33.71 = 72.29

⇒ t = \sqrt{72.29} ≈ 8.5 in → A


6 0
3 years ago
I need help on 11, 12 and 13 please ... :(
Lynna [10]
Question 11= B
Question 13= C
I don't know how to do question 12
6 0
3 years ago
What is the circumference of a circle with a radius of 1.4 m?
malfutka [58]
Ok now that i understand the question better i say it is D

4 0
3 years ago
Read 2 more answers
What is the ratio of 5 gallons blue paint to 9 gallons of yellow paint?
MakcuM [25]
Wouldn't you divide? If so, 5/9 = 0.6
7 0
3 years ago
Read 2 more answers
40.6 in numerical form
oksano4ka [1.4K]
What's your question so I could help?
6 0
3 years ago
Other questions:
  • Jana is prescribed 250 mg of medication. Seventy-five percent of the medication remains in her body after each hour, h, accordin
    8·2 answers
  • Please help me with this question! I will give brainliest if I can!
    7·1 answer
  • Elise walks diagonally from one corner of a square plaza to another. Each side of the plaza is 5050 meters.
    13·1 answer
  • 1 Jack is keeping a record of the number of steps he takes each day.
    13·1 answer
  • Set up an equation to find the length of the diagonal of the rectangle.
    14·1 answer
  • HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
    12·1 answer
  • -2y-5(6z-4y)-3z can anyone help me
    13·1 answer
  • Exit
    8·1 answer
  • Quick question: is this the way you do this?
    6·1 answer
  • in rectangle ABCD, BD and AC are diagonals and intersect at E. If BD = 84 units and AE = 6y, what is the value of y
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!