Answer: 672 feets
Step-by-step explanation:
Using the solution diagram attached, the vertical height, h of the lighthouse ;
Using trigonometry :
Tanθ = opposite / Adjacent
Tan 2 = h / 804
h = tan 2 * 804
h = 28.076 feets
Using h, we can obtain the distance CB :
Tan θ = opposite / Adjacent
Tan 2 = 28.076 / CB
CB = 28.076 / Tan 12°
CB = 132.08860 feets
Distance between A and B
804 - 132.08860
= 671.9 feets
Sorry I just saw this but the answer would be (please give brainliest)
A: Be sure the formula is in the form t=d/v because we want to find the value of t. Additional info needed: d = distance from Sun to Earth (an average value because orbit of Earth is not a perfect circle) v = velocity (or speed) of light And, if we want the answer in minutes, we may need to convert seconds to minutes. The value of v (meters/sec) and d (meters) should be compatible, or we have to convert them also.
B: d=vt d/v = t [divide both sides by v]
C:d = 93,000,000 miles (rounded)
v = 671,000,000 miles/hr (the speed of light, rounded)
D:t = d/v = 93000000/671000000 = 0.14 hours (rounded) This is (0.14)*60 = 8.4 minutes or <span>8 minutes 24 seconds
</span>
E: 128100/5280=24.621 miles
t=24.261/335.92
t=0.07222 hours
t=0.07222 times 3600
t=260 seconds
Step-by-step explanation:
an arithmetic sequence means that every new term is the old term plus a constant number.
in our case that constant is +50.
and our starting value a0 = 250
so, the first 4 terms are
$250, $300, $350, $400
for the function formula we know
a0 = $250
a1 = a0 + 50 = 250 + 50 = $300
a2 = a1 + 50 = a0 + 50 + 50 = a0 + 2×50 = $350
a3 = a2 + 50 = a0 + 3×50 = $400
so, we see
an = a0 + n×50 = 250 + 50n
therefore,
f(n) = 250 + 50n
after 9 months saving we reached a9, meaning n=9.
f(9) = 250 + 50×9 = 250 + 450 = $700