<span>Lennie used
associative law of addition.
Associative law of addition doesn’t matter how you group the given numbers to
add.
a + (b + c) = (a + b) + c
=> 19 + (11 + 37) or ( 19 + 11) + 37
=> 19 + (48) or (30) + 37
=> 67 or 67</span>
Step-by-step explanation:
4.5 s, 324 ft
Explanation:
The object is projected upward with an initial velocity of
v_0 = 144 ft/sv
0
=144ft/s
The equation that describes its height at time t is
s(t) = -16t^2 + 144 ts(t)=−16t
2
+144t (1)
where t, the time, is measured in seconds.
In order to find the time it takes for the object to reach the maximum height, we must find an expression for its velocity at time t, which can be found by calculating the derivative of the position, s(t):
v(t) = s'(t) = -32t +144v(t)=s
′
(t)=−32t+144 (2)
At the maximum heigth, the vertical velocity is zero:
v(t) = 0
Substituting into the equation above, we find the corresponding time at which the object reaches the maximum height:
\begin{gathered}0=-32t+144\\t=\frac{144}{32}=4.5 s\end{gathered}
0=−32t+144
t=
32
144
=4.5s
And by substituting this value into eq.(1), we also find the maximum height:
s(t) = -16(4.5)^2+144(4.5)=324 fts(t)=−16(4.5)
2
+144(4.5)=324ft
<h3>used this way i even don't know sorry:))</h3>
<span>base area = 25 sq meters
area = PI*radius^2
radius = sq root [area / PI]
</span><span>radius = sq root (25/PI)
</span>base radius = <span>2.8209479177 meters
</span><span>
Cylinder Volume = </span><span>π <span>• r² • height
Therefore,
</span></span><span>Cylinder height = Volume / [pi*radius^2]
</span>Cylinder height = 225 / [PI*<span>2.8209479177 ^ 2]
</span>Cylinder height = 225 / [PI *
<span>
<span>
<span>
7.9577471544
</span>
</span>
</span>
]
<span>Cylinder height = 225 / 25
</span><span>Cylinder height = 9 meters
</span>Source:
Formulas
http://www.1728.org/diamform.htm
Calculator
http://www.1728.org/diam.htm
THe correct option is the 3rd option
Answer:
The answer is C
Step-by-step explanation:
117 + 23 =140 and you have $140 in all so you spent it all
