Evaluate 8+w/4 when w=14
1 answer:
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Answer:
D. 914 feet
Step-by-step explanation:
We are given the distance that a person can see on a clear day from the upper observation platform of the Eiffel tower in Paris. We are then required to estimate the height of the upper observation platform using the formula;
Where d is the distance and h the height of the upper observation platform. The first step would be to solve for h, that is make h the subject of the formula in the above equation;
We multiply both sides of the equation by the reciprocal of 5/6 which is 6/5;
The next step is to eliminate the square root on the Left Hand Side of the equation by squaring both sides;
Given d is 25.2, h becomes;
To the nearest whole number, h becomes 914
Well this is kind of difficult because we have no way to determine a constant for each banana; however, we can still formulate an equation to form some sort of solution.
Divide both sides by two:
Now, we can continue to go forward as long as know how many pounds each banana bunch weighs and how many bananas are in the bunch.
We could say there are "x" bananas in each pound of bananas:
Or:
Or to isolate "c":
Divide both sides by two:
Now, we can continue to go forward as long as know how many pounds each banana bunch weighs and how many bananas are in the bunch.
We could say there are "x" bananas in each pound of bananas:
Or:
Or to isolate "c":
Answer:
The pebble will hit the ground 8.29 second after it is thrown.
Step-by-step explanation:
Given that,
The height of the pebble after t seconds is given by the equation
h= -16t²+24 t+900.
When the pebble hit the ground, the height of the pebble will be zero.
So putting h=0 in the given equation.
0 = -16t²+24 t+900
⇒-4(4t²-6t-225)=0
⇒4t²-6t-225=0
Applying quadratic formula , here a=4, b= -6 and c= -225.
⇒ t = 8.29, -6.79
Since time can not negative.
∴t=8.29 seconds.
The pebble will hit the ground 8.29 second after it is thrown.