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madam [21]
3 years ago
7

HELP!!! Estimate: 32% of 50 =

Mathematics
2 answers:
nirvana33 [79]3 years ago
8 0

Answer:

32% of 50 = 16% of 100

So, 32% of 50 is equal to 16.

Let me know if this helps!

natali 33 [55]3 years ago
6 0

15 is the answer

if its estimate, its basically asking 30% of 50

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Given |u| = 10 at ∠135° and |v| = 5 at ∠30°, what expression can be used to find |u + v|?
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Answer:

B, 10^{2} + 5^{2}- 2(10)(5)cos(75)

Step-by-step explanation:

Using the law of cosines, which is c^{2}=a^{2}+b^{2}-2ab cos(C), you can simply insert all the values.

c=|u+v|

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b= r value of v (5)

To find  C, you simply have to subtract v from u, and then subtract that number from 180 to find the reference angle.

I.E.: ∠135 - ∠30 = ∠105 ↔ 180 - 105 = 75 =  C

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Alex_Xolod [135]

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