Answer:
Step-by-step explanation: with what?
Answer:
(a) By cosine rule, /PQ/2=202+152−2×20×15×cos145°
= 400+225−600cos145°
= 625+600×0.8192
= 491.52+625
/PQ/2=1116.52⟹/PQ/=1116.52−−−−−−√=33.41
≊33km ( to the nearest whole number)
(b) By sine rule,
sin<QPR15=sin14533.41
sin<QPR=15sin14533.41
sin<QPR=15×0.573633.41=0.2575
<QPR=14.92°
∴ Bearing of Q from P = 25° + 14.92° = 39.92°.
≊40° (to nearest whole number)
Step-by-step explanation:
hope it helps
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Answer: it be 10%
Step-by-step explanation:
sorry if i wrong
This is division. Let’s set up your problem.
I prefer not using mixed numbers. Instead we’ll use 14/3 for the fraction.
So to start off:
14/3 / 7
the 7 can also be 7/1.
use the saying, “keep, change, flip.”
keep the 14/3, change the sign to multiplication, and flip the last fraction.
14/3 x 1/7
now multiply.
14/21 is your fraction. Now simplify.
You get 2/3.
Your answer is:
She should cut the ribbon 2/3 m.
Step-by-step explanation:
everything can be found in the picture