All categories

3 years ago

SOMEONE PLZ HELP IM SO LOST ILL GIVE U BRAINLIEST

Mathematics

1 answer:

hammer [34]3 years ago

6 0

Answer:

What is a Proof?

A series of steps, with justifications, that verifies a theorem or relationship exists

Types of Proofs

Two-column Proofs a table with two columns; the first column is the mathematical statement, and the second column is the justification

Paragraph Proofs a type of proof that explains the rationale for each step using complete sentences in paragraph form

Flow Chart Proofs a diagram that contains the steps of the proof and the justification for each one

------------------------

You might be interested in

Megan sent 12 postcards last week. This week she sent 4 postcards. How many more postcards didn't she sent last week?

Gala2k [10]

8 postcards she didn't sent last week.

5 0

3 years ago

Read 2 more answers

A number cube is rolled. What is the probability that the result is a number greater than 4?

JulijaS [17]

Answer:

1/3

Step-by-step explanation:

Number cube has 6 sides so a number greater than 4 is 5 and 6. Which is 2 times so 2/6 which can simplify to 1/3

5 0

3 years ago

Need help with task! Show work if possible~~

Inessa [10]

Answer:

Please see attached picture for full solution.

Sorry, I'm not sure how to do Q7 :(

6 0

3 years ago

Find the sum of each set of numbers, as well as the size n of each set of numbers (n = number of numbers in the set). Use these

guapka [62]

We have to add numbers without a calculator.

1) 25, 35, 19, 31

We can group them by the last digit, so they are easy to add:

25 + 35 = 20 + 30 + 5 +5 = 50 + 10 = 60

19 + 31 = 10 + 30 + 9 +1 = 40 + 10 = 50

Then, 60 + 50 = 110

numbers in the set n = 4

Sum = 110

2) 101, 73, 49, 27, 24, 36

We can group them again by the last digit (adding 10, like the previous example).

We can substract the last digit from one number and add it to the other one. The result will be the same, but they will become easier to add.

101 + 49 = 100+50 = 150

73 + 27 = 70 + 30 = 100

24 + 36 = 20 + 40 = 60

150 + 100 + 60 = 250 + 60 = 310

numbers in the set n = 6

Sum = 310

3) 25, 25, 25, 30, 30, 30, 32, 32, 32

In this case we have 3 times the same numbers, so we can add the three different numbers and then multiply the total by 3.

We can use the properties of the multiplication to simplify the product (we will use the distributive property)

25 + 30 + 32 = 27 + 30 + 30 = 87

87 * 3 = 80*3 + 7*3 = 240 + 21 = 261

numbers in the set n = 9

Sum = 261

8 0

1 year ago

In an election, about 500,000 people voted in all. What could be the exact number of people who voted in the election?

elixir [45]

I am going to give a few answers:

497,543
504,690
501,991
496,900

6 0

3 years ago