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nexus9112 [7]
4 years ago
12

What kind of triangle is this?

Mathematics
2 answers:
kolezko [41]4 years ago
5 0
C.) obtuse Hope this helps!
inysia [295]4 years ago
3 0
The triangle is obtuse angled triangle because one of the angle is greater than 90°.
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Find the area of an equilateral triangle (regular 3 Gon) with the given measurement 9 in perimeter a=SQ.in
blsea [12.9K]

Answer:

3.897 in^{2}

Step-by-step explanation:

equilateral triangles are also equiangular, meaning the have equal angles.

Triangle sum theory says that angles of a triangle add up to 180.

That means each angle is 60.

A = bh/2

You need the (h). The base of is 3.  Perimeter = 9, so each side is 3

Draw a perpendicular line for the height. The line cuts the base in half (1.5)

Using trigonometry you can find the height.

tan 60° = h/1.5

h = height, 1.5 is half of 3, 60° is the base angle.

multiply each side by 1.5

1.5(tan 60°) = h

h=2.598

then substitute h into formula

A= <u>(2.598)(3) </u>

           2

A = 3.897 rounded

4 0
3 years ago
Albert has $105 to spend on new basketball shoes. On his favorite shoe website, the prices for a pair of the shoes range from $8
Leokris [45]

Answer:

11.28(94)

this is what i got  but i still don't know that question.

6 0
4 years ago
Read 2 more answers
Fifteen less than eight times a number (n) is twenty seven in equation form
Zepler [3.9K]

Answer:

x = -4/5 = -0.800

Step-by-step explanation:

Pull out like factors :

-12 - 15x  =   -3 • (5x + 4)

Solve :  

-3   =  0

Solve  :

5x+4 = 0

5x = -4

<u><em>x = -4/5 = -0.800</em></u>

5 0
4 years ago
Which shows the equation of the line using function notation?
kirza4 [7]
Hey there Smarty!

Your answer, would be the first option. I used a graphing calculater to recheck my work for this problem, and because of this reconfirmation, I concluded that you first answer would option (a).

Hope this helps you!

5 0
3 years ago
Tim Invested $5,000 in a savings account for 6 years.He earned $550 over that fine period.What is the interest rate?
Klio2033 [76]

Answer:

1.75 %  

Step-by-step explanation:

The formula for the future value (FV) of an investment is

FV =PV(1 + r/n)^nt

If the interest is calculated once a year, n = 1, and the formula reduces to

     FV = PV(1 +r)^t

5550 = 5000(1 + r)⁶     Divide both sides by 5000

 1.110 = (1+r)^6              Take the sixth root of each side

 1 + r = 1.0175               Subtract 1 from each side

      r = 0.0175               Convert to percent

     r = 1.75 %

The interest rate is 1.75 %.

5 0
3 years ago
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