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qwelly [4]
3 years ago
14

80 POINTS FOR ALL 5 ANSWERS AND BRAINLEIEST

Mathematics
2 answers:
IceJOKER [234]3 years ago
5 0

Answer:

I only know that question 1 is true

Step-by-step explanation:

Agata [3.3K]3 years ago
4 0

Answer:

Question 2 is y = 1/2 x - 2

Question 3 is y=-2x+4

Question 4 is y = x + 3

 Your other questions don't have pictures of the graph so I can't solve them sorry.  Have a good day.

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A square dartboard contains a red square and a blue square that overlap. A dart hits a random point on the board.
FinnZ [79.3K]
They want to know the probability of landing in the blue and red section at the same time. In other words, they want to know the probability of landing in the purple section.

We'll need the area of the purple square. This square is 1.5 inches by 1.5 inches. This is because 4 - 2.5 = 1.5

So the purple square has an area of 1.5*1.5 = 2.25 square inches

Divide this over the total area of the largest square (which is 9x9) to get 2.25/81 = 0.02777... where the 7's go on forever

Round that to two decimal places. The final answer is 0.03

Side note: 2.25/81 is equivalent to the reduced fraction 1/36 (express 2.25/81 as 225/8100 and then divide both parts by the GCF 225)
5 0
3 years ago
A ball is chosen at random from a bag containing 150 balls that are either red or blue and either dull or shiny. There are 36 re
tino4ka555 [31]

Answer:

The probability of the chosen ball being shiny conditional on it being red is; 0.375

Step-by-step explanation:

Let A be the event that a red ball has been chosen

Let B be the event that a shiny ball has been chosen

Let S be the total outcomes = 150 balls

Thus;

P(A ∩ B ) = 36/150

A ∩ B' = 150 - 36 - 54

A ∩ B' = 60

Thus; P(A ∩ B') = 60/150

P(A') = 54/150

P(A) = (150 - 54)/150 = 96/150

Thus, probability of the chosen ball being shiny conditional on it being red is;

P(B | A) = P(B ∩ A)/P(A)

Thus; P(B | A) = (36/150)/(96/150)

P(B | A) = 0.375

8 0
2 years ago
A problem states: "There are 7 more girls than boys in a club. There are 23 members in the club in all. How many girls are there
dlinn [17]

Answer:

Step-by-step explanation:

Number of boys = g - 7.

g - 7 + g = 23

2g = 30

g = 15.

The are 15 girls in the class.

3 0
3 years ago
Read 2 more answers
Can someone please help me with this?
nadya68 [22]

Answer:

A. -0.875

Step-by-step explanation:

Find where the points are located

A=-4.25

B=2.5

Add the points

-4.25+2.5=-1.75

-1.75/2=-0.875

7 0
2 years ago
Select all the events that are possible, but unlikely.
V125BC [204]

Answer:

opening a 300 page book to exactly page 143.

everyone in your school will get to school on time on the next school day.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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