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Iteru [2.4K]
2 years ago
8

Which is a discrete random variable?

Mathematics
1 answer:
sveta [45]2 years ago
3 0
The answer is z result of flipping. Two coins
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6 pounds of apples and 3 pounds of oranges cost 24 dollars.5 pounds of apples and 4 pounds of oranges cost 23 dollars. Set up a
vitfil [10]

Answer:cost of each pound of apple= $3

And cost of each pound of orange =$2

Step-by-step explanation:

Step 1

Let cost of apples = x

And cost of Oranges =y

Let 6 pounds of apples and 3 pounds of oranges cost 24 dollars be represented as

6 x + 3y= 24----- equation 1

Also, Let 5 pounds of apples and 4 pounds of oranges cost 23 dollars be represented as

5x+ 4y= 23----- equation 2

Step 2

6 x + 3y= 24----- equation 1

5x+ 4y= 23----- equation 2

Using substitution method to solve the equation

6 x + 3y= 24

24-6x=3y

y= 24-6x/3 = 8-2x

Y= 8-2x

Substituting the value of y= 8-2x  into equation 2

5x+ 4( 8-2x)= 23

5x+ 32 -8x= 23

32-23= 8x-5x

9=3x

x=9/3

x=3

Putting the value of x= 3 in equation 1 and solving to find y

6 x + 3y= 24

6(3) +3y= 24

18+3y=24

3y= 24-18

3y=6

y=6/3= 2

Therefore the cost of each pound of apple= $3

And cost of each pound of orange =$2

8 0
3 years ago
What is the answer? <br><br><br> A: 5/20<br><br> B:5/11<br><br> C: 19/20<br><br> D: 1 9/20
Kaylis [27]
The answer is D.
Find common factors of denominators.
15+10+4/20= 29/20= 1 9/20 :)
7 0
3 years ago
How is a rectangle similar to a square?
STatiana [176]

Answer:

So a square is a special kind of rectangle, it is one where all the sides have the same length. Thus every square is a rectangle because it is a quadrilateral with all four angles right angles. However not every rectangle is a square, to be a square its sides must have the same length.

Hope this helps!


7 0
3 years ago
Read 2 more answers
Pre-Calculus Help? Polar and Parametric Equations?
Paraphin [41]
\bf x=rcos(\theta )\implies \cfrac{x}{cos(\theta )}=r\\\\&#10;y=rsin(\theta )\implies \cfrac{y}{sin(\theta )}=r&#10;\\\\&#10;-------------------------------\\\\&#10;r=3cos(\theta )\implies \cfrac{x}{cos(\theta )}=3cos(\theta )\implies x=3cos(\theta )cos(\theta )&#10;\\\\\\&#10;\boxed{x=3cos^2(\theta )}&#10;\\\\\\&#10;r=3cos(\theta )\implies \cfrac{y}{sin(\theta )}=3cos(\theta )\implies \boxed{y=3cos(\theta )sin(\theta )}
7 0
3 years ago
Will mark brainliest!!<br><br> picture included ^^^^<br><br> please and THANK YOU<br><br><br> ^^!!
Alisiya [41]

Answer:

shift the graph up 1 unit

Step-by-step explanation:

d is the vertical shift

+1 means we shift the graph up 1 unit

5 0
3 years ago
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