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Mathematics

1 answer:

lina2011 [118]3 years ago

7 0

Answer:

56 degrees

Step-by-step explanation:

x+15 + x + 2x+1 = 180 (triangle angle sum theorem)

4x+ 16 = 180

4x= 164

x= 41

<C = x+15

x+ 41, so

41+ 15=

x+ 56

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What is the volume of a hemisphere with a radius of 1.6 and height of 6.2?

qaws [65]

You can find the area of a hemisphere by using the following equation

V = (2/3) (pi)*r^3

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6 0

3 years ago

HELP ASAP!!!!!!!!!!!

ycow [4]

Answer:

should be 30

Step-by-step explanation:

triangles have 180°

if x is 30

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4 0

3 years ago

A card is picked from a standard deck of 52 cards. Determine the odds against and the odds in favor of selecting a red face card

timama [110]

<h3>The probability of picking a red face card from the deck is $(\frac{3}{26} )$ </h3><h3>The probability of NOT picking a red face card from the deck is $(\frac{23}{26} )$ </h3>

Step-by-step explanation:

The total number of cards in the deck = 52

The total number of red( Diamond + Hearts) face cards in the given deck

= 2 Red Queens + 2 Red jacks + 2 Red kings = 6 cards

Let E : Event of picking a red face card from the deck

Now , P( any event) = $\frac{\textrm{The number of favorable observations}}{\textrm{Total number of observations}}$

So, here P(Picking a red face card) = $\frac{\textrm{The number of red face cards}}{\textrm{Total number of cards}} = (\frac{6}{52} ) = (\frac{3}{26})$