<span>7q^2 − 28 = 0
</span>7q^2<span> = 28
</span>q^2<span> = 28/7
</span>q^2<span> = 4
</span>q^2= 2^2
<span>q=+ 2 and q = -2
hope that helps
</span>
Answer: a) $26.55/year
b) $64.13/year
Step-by-step explanation:
a) <u>$7.64</u> . <u>1 ft³</u> . <u>50 gal</u> . <u>1 load </u> . <u>52 week</u> = $<u>26.55</u>
100 ft³ 7.48 gal 1 load 1 week 1 year year
The total cost per year is $26.55
b)<u>$7.64</u> . <u>1 ft³</u> . <u>17.2 gal</u> . <u>1 shower </u> . <u>365 days</u> = <u>$64.13</u>
100 ft³ 7.48 gal 1 shower 1 day 1 year year
The total cost per year is $64.13
Let h represent the height of the building. Then the difference between the two angle measurement locations is
.. h/tan(39°) -h/tan(50°) = 300 ft
.. h = (300 ft)/(1/tan(39°) -1/tan(50°))
.. h ≈ 758 ft
The height of the building is about 758 feet.
freezing point. 32 or below is freezing point.
