It can be represented by this expression: -20+20
Answer: The the speed of elevators is 22.55.
Explanation:
It is given that observation deck of the willis tower in Chicago Illinois is 1353 feet above the ground elevators lift visitors to that level in 60 seconds.
The speed is the change in distance with respect to time.
From the given information the total distance is 1353 and the total time is 60 seconds. So by the above formula we get,
Therefore, the speed of elevators is 22.55.
That's the identity property. 0 is the neutral number, of you add 0 to a number the result is the same number (in this case 6).
Consider the number 226981 since...
the units digit of 226981 is 1,
the units digit of its cube root is
also 1.
Now, the number obtained by striking out units, tens and hundred digits = 226.
=> 3. 3
<h2> 6. <226 <7 </h2>
tens digit of the cube root of 226981 is
<h2> 6</h2>
hence, 3._________
\/ 226981. =6
for more information
<h2>link/84016...</h2>
Answer:
A = 222 units^2
Step-by-step explanation:
To find the area of this trapezoid, first draw an imaginary horizontal line parallel to AD and connecting C with AB (Call this point E). Below this line we have the triangle CEB with hypotenuse 13 units and vertical side (21 - 16) units, or 5 units. Then the width of the entire figure shown can be obtainied using the Pythagorean Theorem:
(5 units)^2 + CE^2 = (13 units)^2, or 25 + CE^2 = 169. Solving this for CE, we get |CE| = 12.
The area of this trapezoid is
A = (average vertical length)(width), which here is:
(21 + 16) units
A = --------------------- * (12 units), which simplifies to:
2
A = (37/2 units)(12 units) = A = 37*6 units = A = 222 units^2
