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OLga [1]
2 years ago
12

2/x-4/y/-5/y+3/x Pls help

Mathematics
1 answer:
sweet [91]2 years ago
6 0

Answer:

5y-9x/xy

Step-by-step explanation:

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The answer is 25m. you do 6/15 =.4 then 10/.4= 25

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4. A
nignag [31]

Answer: the ball clears the bar by 2.48[m] as it passes through the goal posts.

Step-by-step explanation:

This question requires you to solve for two quantities. First you will need to determine how long it takes the ball to reach the goal based on its x-velocity. Second, you will use the time you calculated to determine the y-value (height) of the ball at that time. Putting these values together, you will know by how much the ball cleared the goal post.

Step 1: Finding how long it takes to reach the goal post.

1. Convert the speed of 17[m/s] into its x-component and y-component.

2. The x-component is given by 17*cos(59.4) = 8.654[m/s]

3. The y-component is given by 17*sin(59.4) = 14.633 [m/s] (Note that it makes sense that the y-component is larger because the ball is being kicked at an angle greater than 45 degrees from horizontal.)

4. Divide your 22[m] distance from the goal by the x-component of the ball's velocity to get the time it takes to reach the goal post. 22[m]/8.654[m/s] = 2.542[s]

Step 2: Find the y-coordinate of the ball at time = 2.542[s]

1. Use the formula y_final = 0.5*y_acceleration*t^2 + y_velocity_initial*t + y_position_initial

2. Substitute values to get y_f = 0.5*-9.8[m/s^2]*(2.542[s])^2 + 14.633[m/s]*2.542[s] + 0

3. Solve to obtain y_f = 5.534 [m]

4. Subtract the height of the bar to find the distance by which the ball clears the bar. 5.534[m] - 3.05[m] = 2.48[m]

Therefore, the ball clears the bar by 2.48[m] as it passes through the goal posts.

6 0
3 years ago
Steven investigates the amount of damage to the head gaskets on the trucks in his fleet and finds that the damage index depends
Hatshy [7]
The correct answer for the question that is being presented above is this one: "D) It decreases by 2/3 of a point." Steven investigates the amount of damage to the head gaskets on the trucks in his fleet and finds that the damage index depends on the ambient temperature.
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3 years ago
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5(2 + 9) + 62 help meeee plss
PIT_PIT [208]

Answer:

117

Step-by-step explanation:

4 0
3 years ago
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PLEASEEEEE HELPPPP MEEEEEEE BRAINLIEST TO THE FIRST ANSWER AND 30 POINTS
icang [17]

Answer:

CD ≠ EF

Step-by-step explanation:

Using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = C(- 2, 5) and (x₂, y₂ ) = D(- 1, 1)

CD = \sqrt{(-1+2)^2+(1-5)^2}

      = \sqrt{1^2+(-4)^2}

      = \sqrt{1+16} = \sqrt{17}

Repeat using (x₁, y₁ ) = E(- 4, - 3) and (x₂, y₂ ) = F(- 1, - 1)

EF = \sqrt{(- 1+4)^2+(-1+3)^2}

     = \sqrt{3^2+2^2}

     = \sqrt{9+4} = \sqrt{13}

Since \sqrt{17} ≈ \sqrt{13} , then CD and EF are not congruent

     

6 0
3 years ago
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