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
Nastasia [14]
3 years ago
7

Suppose a triangle has sides a,b, and c, and that a^2+b^2>c^2. Let theta be the measure of the angle opposite the side of len

gth c. Which of the following must be true?
Check all that Apply.

A. theta or delta is an acute angle.
B. The triangle is not a right triangle.
C. cos0>0
D. The triangle is a right triangle.

Mathematics
2 answers:
xenn [34]3 years ago
4 0
B
b 
b 
b i think it will be b
emmasim [6.3K]3 years ago
3 0

Answer with explanation:

It is given that , a triangle having side length , a , b and c follow the Inequality

 →→ a² + b² > c²

→c²-a²-b² <0 or, a²+b²-c²>0 -------(1)

Law of Cosines

c²=a²+b²-2 a b cos C

→ a²+b²-c²= 2 a b cos C

→ 2 a b cos C >0------[Using (1)]

Here, ∠C=theta

So, cos (Theta) > 0

B. The triangle is not a right triangle.

Option B and Option C

You might be interested in
How do you interpret algebraic expressions in terms of context
Zepler [3.9K]
By Interpret expressions that represent a quantity in terms of its context. Interpret parts of an expression, such as terms, factors, and coefficients. Interpret complicated expressions by viewing one or more of their parts as a single entity.
5 0
3 years ago
How do you find slope given on a graph?
oee [108]
You use rise over run. So you first count the rise( how many upwards is the point) then count the run( how many to the right or left is the point)
7 0
3 years ago
Help this is about shapes
denis-greek [22]

Answer:

exactly one pair of parallel sides =E

two pairs of sices of equal length = B,D

no right angle = A,C

8 0
3 years ago
A scuba diver descends 80 feet, rises 25 feet, descends 12 feet, and then
cluponka [151]

Answer: That would be 15ft

3 0
3 years ago
Factor the common factor out of the expression 8+20a+18a^2
ruslelena [56]
First let's rewrite it...

18a^2 + 20a + 8

Factor out a 2

2 (9a^2 + 10a + 4)
5 0
3 years ago
Other questions:
  • Find the coefficient of x^6 in the binomial expression of (2x+3)^9
    8·2 answers
  • Suppose that m and n are integers. compute r 2π 0 cos(mx) cos(nx) dx. (be careful: there will be two different results, one when
    13·1 answer
  • I NEED HELP FAST PLEASE HELP !
    9·1 answer
  • Mrs. Martin directs two courses one chorus has 28 students the other chorus has 36 students for rehearsals she wants to divide e
    7·1 answer
  • A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red
    15·1 answer
  • What is the determinant of k=[6 8]
    10·1 answer
  • What is the answer its for a grade
    10·1 answer
  • Consider a tank with a capacity of 1000 ` and initially contains 400 ` of solution
    5·1 answer
  • An employee receives an 8% raise each year. The salary this year is $42,000. Which two expressions will calculate the salary for
    15·1 answer
  • Rewrite the expression using radical notation.<br><br><img src="https://tex.z-dn.net/?f=14%28%20%5Cfrac%7B2%7D%7B5%7D%20%29" id=
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!