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Ksju [112]
4 years ago
9

Please help i’m desperate smh

Mathematics
2 answers:
kramer4 years ago
7 0
Just add them all up brother 60 +30 you’ll see because they are both the same shape
kondor19780726 [428]4 years ago
5 0

Answer: a) 2 miles

b) 4 miles

Step-by-step explanation:

There are two right angle triangles formed in the rectangle.

Taking 30 degrees as the reference angle, the length of the side walk, h represents the hypotenuse of the right angle triangle.

The width, w of the park represents the opposite side of the right angle triangle.

The length of the park represents the adjacent side of the right angle triangle.

a) to determine the width of the park w, we would apply

the tangent trigonometric ratio.

Tan θ, = opposite side/adjacent side. Therefore,

Tan 30 = w/2√3

1/√3 = w/2√3

w = 1/√3 × 2√3

w = 2

b) to determine the the length of the side walk h, we would apply

the Cosine trigonometric ratio.

Cos θ, = adjacent side/hypotenuse. Therefore,

Cos 30 = 2√3/h

√3/2 = 2√3/h

h = 2√3 × 2/√3

h = 4

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Which function is the best inverse of f(x)=x2-9
melomori [17]

Answer:

The inverse is sqrt(x+9)

Step-by-step explanation:

f(x)=x^2-9

To find the inverse of the function, we interchange x and y and solve for y

y = x^2 -9

x = y^2 -9

Add 9 to each side

x+9 = y^2 -9+9

x+9 = y^2

Take the square root of each side

sqrt(x+9) = sqrt(y^2)

sqrt(x+9) = y

f^-1 (x) = sqrt(x+9)

7 0
3 years ago
Find the area of a square that is 1/2 yd on a side.
victus00 [196]
Answer:  "  \frac{1}{4}  yd²  " .

______________________________________________________
The area of the square is:  "  \frac{1}{4}  yd²  " .

    or; write as:  " 0.25 yd² " . 
______________________________________________________
Explanation:
______________________________________________________
A "square", by definition, is a quadrilateral and a rectangle, with 4 (four) equal sides and 4 (four) equal angles.

The formula for the area of a square is:

                " A  =  s²  " ;  

          in which:  " A = area of the square" ;
 
        (in " square units ";  in our case, " square yards " ;  
                                                  or, write as:  " yd² " . 
______________________________________________________
                           " s = side length = " 1/2 yd " ;  {given} .
______________________________________________________
 To find the "Area, "A" ; of the square, which is what the question asks:  

→  We plug in the given / known values into the formula, & solve:

     →  " A  =  s²  "  ; 

     →    A = (1/2 yd)²  ; 

                =  (1/2)² * yd²  ;

                =  (1/2) * (1/2) * yd²  ; 

                = (1 * 1) / (2 * 2) * yd²  ;

                =  "  1/4 yd² " .
______________________________________________________ 
Answer:  " \frac{1}{4}  yd²  " .

______________________________________________________
The area of the square is:  "  \frac{1}{4}  yd²  " .

    or; write as:  " 0.25 yd² " . 
______________________________________________________
6 0
4 years ago
Will was playing checkers with a friend the ratio of games was 3:1 won nine games how many games did his friend win
seraphim [82]

Answer:

Games won by his friend = 3

Step-by-step explanation:

<u>Given data:</u>

Ratio of games winning = 3:1

Total games won by Will = 9

Total games won by his friend = ?

<u>Solution:</u>

Assume games won by friends = x

So according to data:

                          3:1 = 9:x

                        = 3/1 = 9/x

By cross multiplying:

                        = 3x = 9 * 1

By dividing 3 to the both sides of equation:

                        = 3x/3 =9/3

                         = x = 3

                                              Games won by friend = 3


8 0
3 years ago
Find the next two terms in this<br> sequence<br> 8,5, 2, -1, -4, [ ?
OleMash [197]

Answer:

-7

Step-by-step explanation:

Subtract 3 from each term to get the next

4 0
4 years ago
Find the measure of the indicated angle to the nearest degree. HELP PLEASE WILL GIVE POINTS AND BRAINLIEST
Irina-Kira [14]
Im pretty sure it’s 1 don’t be mad if it’s not pls
3 0
3 years ago
Read 2 more answers
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