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3 years ago

Please answer the question below, Please and Thank you! ½ (c + 1) ≥ 5

Mathematics

2 answers:

ExtremeBDS [4]3 years ago

8 0

Answer:

c ≥ 9

Step-by-step explanation:

½ (c + 1) ≥ 5

Multiply each side by 2

½ *2(c + 1) ≥ 5*2

(c + 1) ≥ 10

Subtract 1 from each side

c+1-1 ≥ 10-1

c ≥ 9

alexandr402 [8]3 years ago

3 0

Answer:

c ≥ 9

Hope this helps!

Step-by-step explanation:

1/2(c+1) ≥ 5

c+1 ≥ 10

c ≥ 9

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PLZ HELP

Alex

Answer:

The correct option is C ) 109.5°

Therefore,

$m\angle E=109.5\°$

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

$\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}$

Substituting the values we get

$\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}$

$\cos E=\dfrac{-80}{240}=-\dfrac{1}{3}$

Therefore,

$\angle E=\cos^{-1}(-0.3333)$

$m\angle E=109.5\°$ ............As it is in Second Quadrant

Therefore,

$m\angle E=109.5\°$

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svetlana [45]

Answer:

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Step-by-step explanation:

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