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Alja [10]
3 years ago
8

Solve the system of equations and choose the correct answer from the list of options. d + e = 15 −d + e = −5 Label the ordered p

air as (d, e). (4 points) Question 3 options: 1) (0, 0) 2) (10, −5) 3) (5, 10) 4) (10, 5)
Mathematics
1 answer:
Shtirlitz [24]3 years ago
8 0

Answer:

3) (5, 10)

Step-by-step explanation:

d + e = 15

-d + e = -5

e = -5 + d

substitude e for -5 + d

d + -5 + d = 15

2d = 10

d = 5

figure out e

5 + e = 15

e = 10

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Answer/Step-by-step explanation:

✔️Find EC using Cosine Rule:

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EC² = 27² + 14² - 2*27*14*cos(32)

EC² = 925 - 756*cos(32)

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EC = √283.875639

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