The wording “No more than” tells us that the total can be up to 35, but not more. So we can use the less than or equal to sign, ≤
So what she spends, must be less than or equal to 35:
6.25s+14.95 ≤ 35
<span>V(t) = 25000*0.85^t
----
V(5) = 25000*0.85^5 = $11092.63
=$11093</span>
456 × 100 = 45600. 45600 pennies equal 456 dollars.
<span>Sphere Volume = </span><span> 4/3 • <span>π <span>• r³
</span></span></span>1,296 = 4/3 * PI * r^3r^3 = (3/4) 1,296 / PI
r^3 =.75 * 1,296 / PIr^3 =
<span>
<span>
<span>
309.3972093706
</span>
</span>
</span>
radius =
<span>
<span>
<span>
6.7635099107 inches
</span>
</span>
</span>
Sphere Surface Area = <span> 4 • <span>π • r²</span></span>Sphere Surface Area = 4 * PI * 6.7635099107^2
Sphere Surface Area =
<span>
<span>
<span>
574.8494570603
</span>
</span>
</span>
square inches
The arrangement of the Eastern and Western lighthouses and the position of the boat are as shown in the attached diagram.
Using sine rule,
28/Sin 37 = 40/Sin B => Sin B = (40 Sin 37)/28 = 0.8597 => B = Sin ^-1(0.8597) = 59.287°
Therefore,
Angle E = 180 - (37+59.287) = 83.713°
Using the sine rule again;
BW/Sin E = 28/Sin 37 => BW = (28 Sin 83.713)/Sin 37 = 46.246 ≈ 46.27 miles.
The boat is 46.27 miles from the western lighthouse. The correct answer is A.