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klemol [59]
3 years ago
14

A store is having a sale with a 19% discount on all merchandise. Write an

Mathematics
1 answer:
inna [77]3 years ago
7 0

Answer:

3

Step-by-step explanation:

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Given f(x)=5-3x, if f(x)=-19, find x
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5-3(8) = -19

5 multiplied by negative 3 times 8 equals negative 19

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3 years ago
I need help I try Photomath I didn’t help me .
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Answer:

8. 8.80

9. 90

Step-by-step explanation:

Question 8: Use the Pythagorean formula

DE² = DF²+EF²

EF² = DE² - DF²

= 16.2² - 13.6²

= 77.48

EF = √77.48 = 8.80  (Answer)

Question 9: Use the Cosine Rule

GI² = GH² +HI² - 2·GH·HI·Cos ∠GHI

= 60² + 42² - 2·60·42·Cos 123

= 3600 +1764 - (-2744.98)

= 8108.98

GI = √8108.98 = 90

4 0
3 years ago
Read 2 more answers
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