3 years ago

If arc AE = 64° and arc BD = 20°, find the measure of angle BCD.

Mathematics

1 answer:

tamaranim1 [39]3 years ago

5 0

Angle mes BCD = (mes Arc AE-mes ARC BD)/2

Plug: mes BCD = (64+20)/2 = 44° (Number C)

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wel

Well a yard is 3 ft
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3 goes into 13 4 times and you get 12
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3 years ago

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Chris has a job selling newspapers every morning. He receives a base pay of $10 per day and also gets 15 cents for every paper h

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3 years ago

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You want to put $4,000 in a simple interest account. It has a 2.5% annual interest rate. How long will it take you to earn $500

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2 years ago

If 2x + 5 = 82, then 12x = ? A 5 B 10 C 15 D 20

KengaRu [80]

Answer:

2x= 38.5

Step-by-step explanation:

I'm not sure where u got 12x but 2 x = 38.5:

2x + 5 =82

subtract 5 for 82

2x = 77

77 divided by 2 is 38.5

x = 38.5

hope this helps :)

5 0

3 years ago

Substitution again help please

Vesnalui [34]

Answer:

Step-by-step explanation:

1) 4x -3

x = -7 ;

4x - 3 = 4*(-7) - 3 = - 28 - 3 = -31

x = 14 ;

4x - 3 = 4*14 - 3 = 56 - 3 = 53

x = 0

4x - 3 = 0 - 3 = -3

2) 6 -3x

x = -7 ;

6 - 3x = 6 - 3*(-7) = 6 + 21 = 27

x = 14

6 - 3x = 6 - 3*14 = 6 - 42 = -36

x = 0

6 - 3x = 6 - 0 = 6

$3) \dfrac{3x - 21}{7}\\\\x = -7\\\\\\\dfrac{3*(-7)-21}{7}=\dfrac{-21-21}{7}=\dfrac{-42}{7}=-6\\\\\\x = 14\\\\\dfrac{3*14-21}{7}=\dfrac{42-21}{7}=\dfrac{21}{7}=3\\\\\\x=0\\\\\dfrac{0-21}{7}=\dfrac{-21}{7}=-3\\\\$

$\dfrac{3x}{7}-21\\\\\\x = -7\\\\\dfrac{3*(-7)}{7}-21=-3-21=-24\\\\\\x =14\\\\\dfrac{3*14}{7}-21=3*2-21=6-21=-15\\\\\\x=0\\\\\dfrac{0}{7}-21=-21$

8 0

1 year ago