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Lynna [10]
3 years ago
8

2y + 5x – z = 4y + 6x solve for y

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
5 0
The answer should be:
Y=-1/2x1
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There are 52 cards in a standard deck: 13 hearts, 13 clubs, 13 diamonds , and 13 spades. Timothy draws four cards at random from
siniylev [52]

Answer:

\dfrac{1}{4}

Step-by-step explanation:

Total number of cards in a standard deck = 52

Number of hearts in the deck = 13

Number of clubs in the deck = 13

Number of diamonds in the deck = 13

Number of spades in the deck = 13

Four cards are drawn at random by Timothy.

These four cards are drawn from each one of the suits.

And the cards are not replaced.

Therefore, now cards remaining in each suit:

Remaining number of hearts in the deck = 12

Remaining number of clubs in the deck = 12

Remaining number of diamonds in the deck = 12

Remaining number of spades in the deck = 12

Formula for probability of an event E can be observed as:

P(E) = \dfrac{\text{Number of favorable cases}}{\text {Total number of cases}}

Here, number of favorable cases are 12 (i.e. number of hearts)

Total number of cases = 12 \times 4 = 48

Therefore, the required probability is:

\dfrac{12}{48} = \bold{\dfrac{1}4}

7 0
3 years ago
PLZ HELP!!
ludmilkaskok [199]

9514 1404 393

Answer:

  y = -3x^2 -9x +30

Step-by-step explanation:

When a polynomial has a zero at x=p, it has a factor of (x -p). The factors of your quadratic are ...

  f(x) = (x +5)(x -2)

At the point x=3, the value of this product is ...

  f(3) = (3 +5)(3 -2) = (8)(1) = 8

In order for that value to be -24, it needs to be multiplied by a scale factor of -3. The quadratic you want is ...

  y = -3(x +5)(x -2)

  y = -3x^2 -9x +30 . . . . . standard form

3 0
3 years ago
Can you please help me <br> I’ll mark you as brainliest:)
sasho [114]

Answer:

if im not mistakeing it c

Step-by-step explanation:

4 0
3 years ago
Simplify<br> 43 +4.5<br> Plzzz help!!!!!!
swat32

Answer:

47.5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the original price of a hoverboard if it was marked up 80% and sold for final price of $300 (after mark-up).
victus00 [196]

Answer:

60

Step-by-step explanation:

300 divided by 100, gives you the 1% (which in this case is 3)

3 x 80 (markup) gives you 240

300- 240(markup) gives you<em> </em><em><u>60</u></em>

7 0
3 years ago
Read 2 more answers
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