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4 years ago

Pleaseeee helpppp with this❤️❤️❤️

Mathematics

1 answer:

puteri [66]4 years ago

5 0

Step-by-step explanation:

when you solve it you will get an answer for it. so first solve the regular equation then the other two and then you have to add it all together to get another equation

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For these questions find the probability of drawing the given cards at random from a standard 52-card deck under each condition:

never [62]

Answer:

a) 6.37%

b) 6.25%

a) 0.60 %

b) 0.59 %

Step-by-step explanation:

2 )

a) With replacement

Probability of extracting a club is 13/52

Probability of extracting a spade is 13/51

13/52 * 13/51

= 6.37 %

b) Without replacement

13/52 * 13/52

= 6.25 %

3) With replacement

Probability of extracting a ace is 4/52

Probability of extracting a queen is 4/51

4/52 * 4/51

= 0.60 %

b) Without replacement

4/52 * 4/52

= 0.59 %

5 0

3 years ago

The expression x−y equals 0.7 if x and y have certain values. Evaluate the following expressions with the same values of x and y

Marina86 [1]

Answer:

-0.7

Step-by-step explanation:

$x-y=0.7$

You can choose any digits you wish for $x$ and $y$ but the difference must be 0.7. I chose 1.0 and 0.3.

$x=1\\y=0.3\\x-y=0.7\\\\y-x=\\0.3-1=\\-0.7$

8 0

4 years ago

1/2x - 5 = 10 - 3/4x Please show work !

marin [14]

Answer:

x= $\frac{1}{12}$

Step-by-step explanation:

1/2x - 5 = 10 - 3/4x

4x/2x - 5 × 4x = 10 × 4x - $\frac{3 x 4x}{4x}$

2 -5 × 4x = 10 × 4 - 3

2 - 20x = 40x - 3

-20x - 40x = -3 - 2

-60x = -3 - 2

-60x = -5

x = $\frac{-5}{-60}$

x = $\frac{1}{12}$

6 0

3 years ago

Rearrange the equation below to solve for y.<br> 6x+6y= 24

alexandr1967 [171]

Answer:

y = -x + 4

Step-by-step explanation:

Step 1: Use the subtraction property of equality

6y = -6x + 24

Step 2: Use the division property of equality

y = -x + 4

6 0

3 years ago

Read 2 more answers

Solve the equation by completing the

Marizza181 [45]

Answer:

s ≈ - 0.5 , s ≈ 8.5

Step-by-step explanation:

s² - 8s - 4 = 0 ( add 4 to both sides )

s² - 8s = 4

To complete the square

add ( half the coefficient of the s- term )² to both sides

s² + 2(- 4)s + 16 = 4 + 16

(s - 4)² = 20 ( take square root of both sides )

s - 4 = ± $\sqrt{20}$ ( add 4 to both sides )

s = 4 ± $\sqrt{20}$

Then

s = 4 - $\sqrt{20}$ ≈ - 0.5 ( to the nearest tenth ) ← smaller solution

s = 4 + $\sqrt{20}$ ≈ 8.5 ( to the nearest tenth ) ← larger solution

5 0

3 years ago