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1 year ago

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Mathematics

1 answer:

Vika [28.1K]1 year ago

6 0

Step-by-step explanation:

(0, -6)

O (3,0)

O (-6,0)

O (0, 3)

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The headless horseman rode 4/1-2 miles from the old Dutch burying ground to the haunted woods he then traveled 9/3-4 miles from

enyata [817]

Answer:

26 1/4 miles

Step-by-step explanation:

9+4+12=25

1/2+3/4=1 1/4

25+1 1/4= 26 1/4

7 0

2 years ago

they paid $4.28 in sales tax. if the sales tax rate is 6.25, what is the total cost of the items before tax?

emmasim [6.3K]

68.48

100% divided by 6.25% is 16 columns
Second row is 4.28 each
4.28(16)=$68.48

6 0

2 years ago

You pick a card at random from an ordinary deck of 52 cards. If the card is an ace, you get 9 points; if not, you lose 1 point.

Andreyy89

Answer:

$a = 9\\b = 48\\c = -1$

Step-by-step explanation:

We know that:

In a deck of 52 cards there are 4 aces.

Therefore the probability of obtaining an ace is:

P (x) = 4/52

The probability of not getting an ace is:

P ('x) = 1-4 / 52

P ('x) = 48/52

In this problem the number of aces obtained when extracting cards from the deck is a discrete random variable.

For a discrete random variable V, the expected value is defined as:

$E(V) = VP(V)$

Where V is the value that the random variable can take and P (V) is the probability that it takes that value.

We have the following equation for the expected value:

$E(V) = \frac{4}{52}(a) + \frac{b}{52}(c)$

In this problem the variable V can take the value V = 9 if an ace of the deck is obtained, with probability of 4/52, and can take the value V = -1 if an ace of the deck is not obtained, with a probability of 48 / 52

Therefore, expected value for V, the number of points obtained in the game is:

$E(V) = \frac{4}{52}(9) + \frac{48}{52}(-1)$

So:

$a = 9\\b = 48\\c = -1$

3 0

2 years ago

Read 2 more answers

What algebraic propertiy am i using for 5(d + 1)

bekas [8.4K]

Answer:

distributive

Step-by-step explanation:

you are distributing 5(d+1) into 5d +5

4 0

2 years ago

3. Find the least number should be subtracted 9240 to make perfect square.

Elenna [48]

Find the square root of 9240 = √9240 = 96.125... now, take the whole number in the square root of 9240 which is 96 and now square this number so, 96² = 9216. Take the 9216 and subtract it from 9240 which is 24.

3 0

2 years ago