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
FromTheMoon [43]
3 years ago
11

suppose someone tells you that she has a triangle with sides having lengths 2.6, 8.1 and 8.6 is this a right triangle? why or wh

y not? is there an angle in the triangle larger than 90?
Mathematics
2 answers:
yawa3891 [41]3 years ago
5 0
By the converse of the Pythagorean Theorem, if 8.6 ^2 = 8.1 ^2 + 2.6 ^2 , then the triangle is right. 73.96 is not equal to 72.37 so the triangle is not a right triangle.

8.6^2 is greater than (8.1^2 + 2.6^2) which means that the triangle is obtuse.
The obtuse angle is opposite the 8.6 side.
Dafna1 [17]3 years ago
4 0

Answer:

Yes, a 92.16 degree angle is greater than a 90 degree obtuse angle but not a right angle

Step-by-step explanation:

To ave a right triangle the two smaller sides squared added together would have to equal the largest side. A^2 + B^2 = C^2

2.6^2 +8.1^2= 8.6^2

6.76 + 65.61 = 73.96

72.37 = 73.96 No

You might be interested in
Which equation has the solutions x = -3 ± √3i/2 ?
Maurinko [17]

Answer:Answer is option C : [x^{2} + 3x + 3 ] =0

Note:  None of options matches with given question.

instead of "-3" , there should be "-\frac{3}{2}".

Step-by-step explanation:

Note:  None of options matches with given question.

instead of "-3" , there should be "\frac{3}{2}".  

Here, First thing you have to observe the nature of roots.

∴ x = -\frac{3}{2}+\frac{\sqrt{3}}{2}i and x = -\frac{3}{2}-\frac{\sqrt{3}}{2}

∴ [ x+(\frac{3}{2}-\frac{\sqrt{3}}{2}i) ][ x+(\frac{3}{2}+\frac{\sqrt{3}}{2}i) ]=0

∴ [ x^{2} + x(\frac{3}{2}+\frac{\sqrt{3}}{2}i)+ x(\frac{3}{2}-\frac{\sqrt{3}}{2}i) + (\frac{3}{2}-\frac{\sqrt{3}}{2}i)(\frac{3}{2}+\frac{\sqrt{3}}{2}i) ]=0

∴ [x^{2} + \frac{3}{2}x + \frac{\sqrt{3}}{2}ix + \frac{3}{2}x - \frac{\sqrt{3}}{2}ix + (3-\frac{\sqrt{3}}{2}i)(3+\frac{\sqrt{3}}{2}i) ] =0

∴ [x^{2} + 3x + (\frac{3}{2}-\frac{\sqrt{3}}{2}i)(\frac{3}{2}+\frac{\sqrt{3}}{2}i) ] =0

∴ [x^{2} + 3x + \frac{9}{4} - (\frac{\sqrt{3}}{2}i)(\frac{\sqrt{3}}{2}i) ] =0

∴ [x^{2} + 3x + \frac{9}{4} - (\frac{3}{4}) i^{2} ] =0

∴ [x^{2} + 3x + \frac{9}{4} + (\frac{3}{4}) ] =0

∴ [x^{2} + 3x + \frac{12}{4} ] =0  

∴ [x^{2} + 3x + 3 ] =0  

Thus, Answer is option C : <em>[x^{2} + 3x + 3 ] =0  </em>

6 0
3 years ago
1. Which equations represents a quadratic function? A. y = 3 + 2x2
stepladder [879]
B is the answer dude
3 0
3 years ago
Which statement best describes the expression 3 y ÷ 2?
babymother [125]
The answer is c so i would pick that beacuse its sounds like a correct answer.
4 0
3 years ago
4. Calculate the expression shown below and write the answer in scientific
belka [17]

Answer:

3.75 * 10^{-3}

Step-by-step explanation:

We are given the equation 0.003 * 1.25 and are asked to solve it and convert it into scientific notation.

We need to first solve it:

0.003 * 1.25

==> 0.00375

Now convert it into scientific notation, if there are numbers before the decimal point, it is a positive exponent, visa versa:

0.00375 = 3.75 * 10^{-3}

6 0
3 years ago
A class quiz has 5 multiple-choice questions and each question has 4 possible answers (A, B, C, or D). Which spinner would best
Lostsunrise [7]

Answer:

the answer you seek is (B)

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Help please i really need it asap
    5·1 answer
  • Write two in to compare -17 and -22
    15·1 answer
  • Z+(z-6)-2=-10 how do you solve this
    13·1 answer
  • Please help!!
    7·1 answer
  • Write ellipse in standard form
    13·1 answer
  • PLEASE HELP!
    10·1 answer
  • Layne rode his bike from Point A to B by using Cherry Street. How much further would his trip have been if he took Orange Drive
    6·1 answer
  • Find the value of 2 - 3x when x = 7 PLEASE HELP ME :(
    9·2 answers
  • 375 is 60% of what number
    14·1 answer
  • Milan drove 754 miles in 13 hours.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!