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3 years ago

What is the ratio cosC?

Mathematics

1 answer:

Maslowich3 years ago

4 0

Answer: 61.9°

Approximately: 62°

Step-by-step explanation:

Using Pythagoras

(AC)^2 = 17^2 - 15^2

= 289 - 225

√AC = √64

AC = 8

Cos C = Adj/ Hyp

Cos C = 8/17

Cos C = 0.4706

Inverse of Cos C

C = 61.93°

Approximately: 62°

You might be interested in

Find an equation of the line that goes through the points (10,34) and (-1,10)

kotykmax [81]

Answer:

Given points are ( 10 ,34 ) and ( -1 , 10)

Step-by-step explanation:

The equation of line is given by 

first we can find slope (m) 

= (y2 - y1) / ( x2 - x1)

= 34-10/10+1

 =24/11

Now the equation is

y - y1 = m ( x - x1) 

y - 10 = 24/11 ( x +11)

11 ( y - 10 ) = 24 (x + 11)

11y - 110 = 24x + 264

24x + 264 +110-11y =0

24x - 11y + 374 = 0

which is the required equation 

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D-5x-24%3D0" id="TexFormula1" title="x^{2}-5x-24=0" alt="x^{2}-5x-24=0" align="absmi

xeze [42]

Answer:

x= 8, 3

Step-by-Step Explanation:

$x= \frac{-(-5)^{2} +\sqrt{(-5)^2-4*1(-24)} }{2*1} =8$

$x= \frac{-(-5)-\sqrt{(-5)^2-4*1(-24)} }{2*1} : -3$

5 0

3 years ago

What is one plus two

cricket20 [7]

Answer:

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Explain what is similar and what is different about the two expressions

Maslowich

The 2 I believe sndjdjf

5 0

3 years ago

PLEASE HELP :D ( these are multi step equations )

AnnyKZ [126]

For the first problem the answer is -5/2

2x−7+10=−2

Step 1: Simplify both sides of the equation.
2x−7+10=−2
2x+−7+10=−2
(2x)+(−7+10)=−2

(Combine Like Terms)
2x+3=−2

Step 2: Subtract 3 from both sides.
2x+3−3=−2−3
2x=−5

Step 3: Divide both sides by 2.
2x/2=−5/2
x=−5/2

Answer:
x= -5/2

3 0

3 years ago