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Alla [95]
3 years ago
9

Jack picked a card from a standard deck. What is the probability that jack picked a diamond or a queen?

Mathematics
2 answers:
Vika [28.1K]3 years ago
8 0
Picking a diamond is 1/4, and picking a queen is a 1/13 chance
andrey2020 [161]3 years ago
4 0

Answer:

probability is 4 / 13

Step-by-step explanation:

Total number of cards in a standard deck = 52 cards.

total number of diamonds = 13 cards

total number of queens = 4 cards.

We should remember that in 13 cards of diamonds there is one queen. so total diamonds and queens are = 13 + 3 = 16 cards

The probability that Jack picked a diamond or a queen

= 16 / 52 = 4 / 13

You might be interested in
The table shows the height of a plant as it grows. Which equation in point ­slope form gives the plant’s height at any time
vodka [1.7K]

Answer:

Option A is correct.

y-16=8(x-2) is the equation represent the point slope form gives the plant's height at any time.

Step-by-step explanation:

Point slope intercept form: For any two points (x_1, y_1) and  (x_2, y_2) then,

the general form

y-y_1=m(x-x_1) for linear equations;  where m is the slope given by:

m =\frac{y_2-y_1}{x_2-x_1}

Consider any two points from the table;

let A= (2 , 16) and B =(4, 32)

First calculate the slope of the line AB:

m =\frac{y_2-y_1}{x_2-x_1}=\frac{32-16}{4-2}=\frac{16}{2} = 8

Therefore, slope of the line m = 8

Then,

the equation of line is:

y-y_1=m(x-x_1)

Substitute the value of m=8 and (2, 16) above we get;

y-16=8(x-2)

Therefore, the equation in point slope form which gives the plant's height at any time is; y-16=8(x-2) , where x is the time(months) and y is the plant height (cm)


5 0
3 years ago
Read 2 more answers
Pls help extra points and mark brainlist
Mashutka [201]

Answer:

B. y = 2x

Step-by-step explanation:

every y value is the value of x multiplied by 2

so that means y=2x

hope this helps luv <3

5 0
3 years ago
Read 2 more answers
Find the number of 4-digit numbers that contain exactly two even and two odd digits.
Dvinal [7]

Answer:

2,435

Step-by-step explanation:

find two even and two odd

7 0
3 years ago
Hey what's the answer<br>thanks. <br>​
k0ka [10]

Step-by-step explanation:

if b+c=0

b=-c

x^b=x^-c

so

1/[2(x^b)+1]

6 0
3 years ago
PLEASE HELP WILL MARK BRAINLIEST!!!!!
Fudgin [204]

Answer:

the anser would be the second one i think hope it helps please mark brailiest

Step-by-step explanation:

3 0
3 years ago
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