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Citrus2011 [14]

3 years ago

9

I’ll make brainliest

2 answers:

Stolb23 [73]3 years ago

7 0

Answer: 13.5647
explanation: using the pythagorean theorem

enyata [817]3 years ago

7 0

Answer:

54

Step-by-step explanation:

A 90 degree triangle will seperate into three sides equalling 90 degrees.

90 75

-25 -21

= 75 =54

The third side is 54 degrees, I believe. Haven't done this in a while so I apologize if I made any mistakes.

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A card is drawn randomly from a standard deck of cards. you win $10 if the card is a spade or an ace. what is the probability th

klio [65]

The probability of winning is 4/13.

These two events are not mutually exclusive; this means they can happen at the same time. For two events that are not mutually exclusive,

P(A or B) = P(A) + P(B) - P(A and B)

This gives us
P(spades or Ace) = P(spades) + P(Ace) - P(spades and Ace)

There are 13 spades out of 52 cards.
There are 4 aces out of 52 cards.
There is 1 card that is a spade and an ace out of 52 cards.

13/52 + 4/52 - 1/52 = 16/52 = 4/13

3 0

3 years ago

The game of American roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wh

solong [7]

Answer:

a) $- \frac{1}{19}$

b) SD(x) = 0.9986

Step-by-step explanation:

Given data:

Number of slots 38

slots for red ball 18

slots for black = 18

slots for green 2

outcomes Red Black or Green

Profit 1 -1

P(X) 18/38 20/38

Expected value of wining,

$E(x) = 1. \frac{18}{38} + (-1) \frac{20}{38} = - \frac{2}{38} = - \frac{1}{19}$

B) Standard deviation of winning SD(x)

$SD(x) = \sqrt{(1- (-\frac{1}{19})^2 .\frac{18}{38} + (1- (-\frac{1}{19})^2 .\frac{20}{38}}$

$SD(x) = \sqrt{\frac{360}{361}$

SD(x) = 0.9986

3 0

3 years ago

5x-4-7x+14 x is a variable

Bess [88]

Answer:

yes

Step-by-step explanation:

Answere=(-2x+10)

hope it help you

5 0

3 years ago

Read 2 more answers

Four times what gets you fourtheight

lakkis [162]

I think you mean 48. 4 * x = 48. x = 48/4 = 12

5 0

3 years ago

A new car depreciates as soon as you drive it out of the parking lot. A certain car depreciates to half its original value in 4

Alexandra [31]

Answer:

Original price of car = $20,000

Step-by-step explanation:

Let the original price of the car be 'x' dollars.

Given:

Here, the depreciation of the car is occuring exponentially as the value depreciates to half in every four years.

Worth of car after 8 years = $5000

Value after depreciation in 4 years = Half of original value = $\frac{x}{2}$

So, value of car after depreciation in another 4 years = Half of the value after 4 years = $\frac{1}{2}(\frac{x}{2})=\frac{x}{4}$

Therefore, final depreciated value after 8 years is $\frac{x}{4}$ .

But, as per question, final depreciated value is $5000. Thus,

$\frac{x}{4}=5000\\x=5000\times 4\\x=20000$

Therefore, the original price of the car was $20,000.

3 0

3 years ago