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2 years ago

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Mathematics

1 answer:

svet-max [94.6K]2 years ago

8 0

Answer:

(a) 27 degrees (nearest degree)

(b) 17.9 m (to one decimal place)

Step-by-step explanation:

Wow, that's along ladder, perhaps for the firemen!

From diagram,

(a)

sin(x) = 9 / 20 = 0.45

x = arcsin(0.45) = 26.74 degrees

(b)

height of wall ladder reaches

h = 20*cos(x) = 20*cos(26.74) = 17.86 m

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nlexa [21]

Answer:

A = -12

B = -8

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Step-by-step explanation:

$y=2x-8$

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$y=2(-2)-8=-4-8=-12$

A = -12

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$y = 2 (0)-8=-8$

B = -8

x = 2

$y = 2 (2) -8 = 4-8 = -4$

C = -4

Hope this helps

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Step-by-step explanation:

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