3 years ago

The temperature at the beginning of the day is

Mathematics

2 answers:

Sveta_85 [38]3 years ago

6 0

Answer:

Step-by-step explanation:

-4+15=11

levacccp [35]3 years ago

4 0

Answer: 11C

Step-by-step explanation: -4+15C = 11C

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A beach has two floating docks. One is 650 meters east of the lifeguard stand. The other is 60° southeast and 750 meters from th

vovangra [49]

Answer:

705 meters

Step-by-step explanation:

$cos~60=\frac{650^2+750^2-d^2}{2 \times 650 \times 750} \\2 \times 650 \times 750 \times \frac{1}{2}=50^2(13^2+15^2)-d^2 \\487500=2500(169+225)-d^2\\487500=2500(394)-d^2\\487500=985000-d^2\\487500-985000=-d^2\\d^2=497500\\d=\sqrt{497500}\\or~d\approx705.337 \approx 705~meters$