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Irina18 [472]
3 years ago
9

Solve for an Angle in right triangles

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
8 0

Answer:

B = 56.25

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adjacent/ hypotenuse

cos B = 5/9

Take the inverse cos of each side

cos ^-1 (cos B) = cos ^-1 (5/9)

B =56.2510114

To the nearest hundredth

B = 56.25

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A snake slithers 2/9 miles in 4/5 hours what is its speed in miles per hour
Mamont248 [21]

Answer:

5/18

Step-by-step explanation:

speed = distance / time

s = (2/9 miles) / (4/5 hours)

To divide by a fraction, multiply by the reciprocal:

s = (2/9) × (5/4)

s = 10/36

s = 5/18

So the snake's speed is 5/18 miles per hour.

3 0
3 years ago
Simplify the expression using long division. (10x2 – 85x – 10) ÷ (x – 8)
Lelechka [254]

Answer: 5 • (2x2 - 17x - 2)

 ———————————————————

        x - 8      

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 

Step  2  :

           10x2 - 85x - 10

Simplify   ———————————————

                x - 8      

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  10x2 - 85x - 10  =   5 • (2x2 - 17x - 2)  

Trying to factor by splitting the middle term

3.2     Factoring  2x2 - 17x - 2  

The first term is,  2x2  its coefficient is  2 .

The middle term is,  -17x  its coefficient is  -17 .

The last term, "the constant", is  -2  

Step-1 : Multiply the coefficient of the first term by the constant   2 • -2 = -4  

Step-2 : Find two factors of  -4  whose sum equals the coefficient of the middle term, which is   -17 .

     -4    +    1    =    -3  

     -2    +    2    =    0  

     -1    +    4    =    3  

Observation : No two such factors can be found !!  

Conclusion : Trinomial can not be factored

8 0
3 years ago
What is the value of m?<br> m3 = 64
uranmaximum [27]

Answer

m=4

Step-by-step explanation:

3 0
3 years ago
Pls helpppppppp......... :( :( :(
ValentinkaMS [17]

Answer:

Step-by-step explanation:

a: is not proportional

because you cant divide any of the tope numbers by the bottom numbers so u can leave the thing blanc.

b: is proportional

becuase you can divide the top and bottom by 30 so the answer is 30

hope this help :)

4 0
3 years ago
Read 2 more answers
An (independent or dependent) variable can be assigned any value. The variable that changes depending on the (independent or dep
True [87]

Answer:

  • An <em>independent</em> variable can be assigned any value. The variable that changes depending on the <em>independent</em> variable is called the <em>dependent</em> variable.
  • If x is the independent variable, then <em>y</em> would be considered the dependent variable and will change depending on the value of <em>x</em>.

Step-by-step explanation:

The key word is "depending". The <em>dependent</em> variable changes depending on the <em>independent</em> variable.

3 0
4 years ago
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