MATHEMATICS MIDDLE SCHOOL

Select from the drop-down menus to correctly complete the sentence.The probability of a chance event is a number between ______
A) 1 to 100
B) 0 and 10
C) 0 and 1

that expresses the likelihood that an event ______ occur.
A) Can
B) Cannot

Answers

Answer 1
Answer:

For a chance event to occur, the probability of that event will be between A. 1 to 100.

This probability is a measure of the likelihood that the event A. Can occur.

What is the probability of a chance event?

A chance event is an event that has a certain probability of occurring. This probability will be between 1% and 100% depending on the likelihood of the event occuring.

If there exists a probability between 1% and 100% then it means that the event has a likelihood of occuring. If it didn't have such a likelihood, the probability would be 0.

Find out more on probability at brainly.com/question/743546.
Answer 2
Answer:

Answer:

0-1

can

Step-by-step explanation: I took the test

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According to the map how many different routes are there from a to d

Determine and prove what shape is formed for the given coordinates for ABCD, and then find theperimeter and area as an exact value.
A (10,-4), B (6,-7), C (3,-3), D (7,0)

Answers

Answer:

Square

Step-by-step explanation:

Plot points A (10,-4), B (6,-7), C (3,-3), D (7,0) on the coordinate plane.

Find slopes of the sides:

AB:\ (-7-(-4))/(6-10)=(3)/(4)\n \nBC:\ (-3-(-7))/(3-6)=-(4)/(3)\n \nCD:\ (0-(-3))/(7-3)=(3)/(4)\n \nDA:\ (-4-0)/(10-7)=-(4)/(3)

The slopes of opposite sides are the same, so opposite sides are parallel. The slopes of adjacent sides have product of -1, then adjacent sides are perpendicular.

Find the lengths of all sides:

AB=√((10-6)^2+(-4-(-7))^2)=√(4^2+3^2)=√(16+9)=√(25)=5\ units\n \nBC=√((6-3)^2+(-7-(-3))^2)=√(3^2+4^2)=√(16+9)=√(25)=5\ units\n \nCD=√((3-7)^2+(-3-0)^2)=√(4^2+3^2)=√(16+9)=√(25)=5\ units\n \nAD=√((10-7)^2+(-4-0)^2)=√(3^2+4^2)=√(16+9)=√(25)=5\ units\n \n

All four sides are of the same length.

Quadrilateral ABCD is a square (all sides of equal length and perpendicular)

Evaluate the expression by using the given values of the variables. y ÷ 4 • 3 – 6 ÷ x + 8 where x = 3 and y = 24A.
8

B.
12

C.
–8

D.
24

Answers

First you plug in the the variable values.

24/4 × 3 - 6/3 + 8.

Then you follow the procedure using order of operations (First you do multiplication/division right to left, then subtraction/addition)

24/4 is 6, then multiply by 3 which is 18.

So far you have 18 - 6/3 + 8. Then you divide 6/3 because it is division and you get 2.

18 - 2 + 8, then you subtract 2 from 18 to get 16 and add 8 which is 24. So the answer is D
y ÷ 4 • 3 – 6 ÷ x + 8    replace y with 24 and x with 3

24 ÷ 4 • 3 – 6 ÷ 3 + 8 

6 • 3 – 6 ÷ 3 + 8 

18 – 6 ÷ 3 + 8 

18 - 2 + 8 

16 + 8

24

Jen motorboat travels at a speed of 13mph in still water. Booth River flows at a speed of 3mph. How long will it take Jen to travel 11 mi upstream? 11mi downstream

Answers

Answer:

Upstream 1.1 hours and down stream 0.6875 hours.

Step-by-step explanation:

Jen motorboat travels at a speed of 13 mph in still water.

Now, the speed of river flows is 3 mph.

Therefore, the upstream speed of the boat is (13 - 3) = 10 mph and the downstream speed of the boat will be (13 + 3) = 16 mph.

Therefore, to travel 11 miles upstream Jen will take (11)/(10) = 1.1 hours.

And to travel 11 miles down stream Jen will take (11)/(16) = 0.6875 hours. (Answer)

8 + (-5) - (-7)

find the answer and explain your steps about how you got it please

Answers

Answer: 7

Step-by-step explanation:

8+(-5)=3

3-(-7)=7

Answer:

10

Step-by-step explanation:

8 + -5= 3

3-(-7)=10

2 negatives make a positive

There were 3,905 more hits on the school website in January than February. February had 9,854 hits. About how many hits did the website have during January and February?

Answers

9,854
-
3,905
_____
5,949
It is actually 5,940 because the equation asked about how many hits did the website have. Therefore, you have to round.

When can you add or subtract equations in a system to solve the system? when do you have to multiply first? Justify your answers with examples.

Answers

You must always use the order of operations also known as PEMDAS meaning multiplication and division come before adding and subtracting for example when solving 2+2÷2 if not follwing PEMDAS it is 2 When you do it the correct way using PEMDAS it will be 3
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A cell phone company wants to predict the probability of a seventh grader in your city, City A, owning a cell phone. Records from another city, City B, indicate that of seventh graders own a cell phone.a. Assuming the probability of a seventh grader owning a cell phone is similar for the two cities, estimate the probability that a randomly selected seventh grader from City A owns a cell phone.b. According to the data, which of the following is more likely? a seventh-grade male owning a cell phone a seventh grader owning a cell phone Explain your choice.