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borishaifa [10]
3 years ago
12

URGENT...Please help me with this question!!!!!!

Mathematics
1 answer:
Hunter-Best [27]3 years ago
6 0

Answer:

option 2

Step-by-step explanation:

The problem can be solved using Pythagoras' identity for a right triangle.

The angle between due East and due North is 90°

The solution here involves using the Cosine rule.

let x be the direct distance between house and office, then

x² = 17² + 21² - 2(17)(21)cos90° → option 2

Note that since cos90° = 0 the equation reduces to

x² = 17² + 21² ← Pythagoras' identity

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Aron rides his bike 12 miles in 3 hours. if he rides at a constant speed, select the answers below that are equivalent ratios to
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Answer:

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3 0
3 years ago
Read 2 more answers
Find f(-5) f(x) -4x + 3
Fiesta28 [93]

Answer:

if f(x)= -4x+3

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Step-by-step explanation:

first you substitute x for -5

f(-5)= -4(-5)+3

then you multiply

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8 0
3 years ago
Factorising quadratics <br><br> All questions please to be completed. I’m stuck.
Alex777 [14]

Answer:

1. (x +1)(x - 1)

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4. (x+14)(x-14)

5. (x+5)(x-7)

Step-by-step explanation:

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