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2 years ago

Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form.

Mathematics

2 answers:

pshichka [43]2 years ago

5 0

Answer:

See below for answers and explanations

Step-by-step explanation:

1) y=9, therefore x=2y=2(9)=18

2) y=32/2=16, therefore x=y√3=16√3

RoseWind [281]2 years ago

4 0

Answer:

1) Let y,9√3,x in ratio of 1:2:3

Thereforr,let constant value be a

y=a

9√3=2a

x=3a

a=9√3/2

a=4.5√3

Therefore ,y =4.5√3

And x=13.5√3

Let y,x,32 be in ratio of 1,2,3

Therefore,let constant value be B

Therefore ,3B=32

B=10.6

Therefore,

y=10.6

x=21.2

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Y is inversely proportional to x . When y = 3 , x = 20 Work out x when y = 12

Talja [164]

Answer:

x = 5 when y = 12

Step-by-step explanation:

If y is inversely proportional to x, we can say that x1 : x2 = y2 : y1

The order of y2 and y1 respectively are interchanged as y is inversely proportional to x

Now let us simply substitute our known values, and solve for x2;

x1 : x2 = y2 : y1

20 : x2 = 12 : 3

20/x2 = 12/3

12(x2) = 3(20)

12(x2) = 60

x2 = 60/12 = 5

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3 years ago

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

Delicious77 [7]

Answer:

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Step-by-step explanation:

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3 years ago

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Delicious77 [7]

Answer:

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3 years ago

A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s heigh

Nataly_w [17]

Answer D). 9 ft is correct

Height of the ball at a horizontal distance of 10 feet is 9 ft

Step-by-step explanation:

A ball is thrown and it follows a parabolic path. At each horizontal distance (x) the following equation models the ball’s height (y).

Y(x) = $-0.02x^{2} +0.8x+3$

Question asked is " What will be height (Y) of the ball when X=10 ft "

Simply putting value of X in given equation

we get,

Y(x) = $-0.02x^{2} +0.8x+3$

Y(x) = $-0.02(10)^{2} +0.8(10)+3$

Y(x) = $-0.02(100)} +8+3$

Y(x) = $-2 +8+3$

Y(x) = $9$

<em>Therefore,</em> Height of the ball at a horizontal distance of 10 feet is 9 ft

Answer D. 9 ft is correct

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3 years ago

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Levart [38]

If this is correct the answer would be
y^2 + 0.1y + 0.0025

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3 years ago