Answer:
Beginning in the 6th century BC with the Pythagoreans, the Ancient Greeks began a systematic study of mathematics as a subject in its own right with Greek mathematics. Around 300 BC, Euclid introduced the axiomatic method still used in mathematics today, consisting of definition, axiom, theorem, and proof.
Step-by-step explanation:
The first recorded zero appeared in Mesopotamia around 3 B.C. The Mayans invented it independently circa 4 A.D. It was later devised in India in the mid-fifth century, spread to Cambodia near the end of the seventh century, and into China and the Islamic countries at the end of the eighth.
Rather than trial and error, you can do this with an equation.
x + x+1 + x+2 = 267 =>
3x+3 = 267
x = 264/3 = 88
So the numbers are 88+89+90. 90 is the largest number.
Answer:
slope = 3
Step-by-step explanation:
if each square is equal to 1
The slope has to be 3.
you can see it, because between those 2 point you can count 3 spaces in y-vertex, and 1 space in x-vertex
what that means is that we will move 3 steps up (or down) for each 1 space in x-vertex.
you can see it just right there on the graph
High school gives too much homework. Studies have shown that teenagers get less sleep because they are worried about homework. On the weekdays teenagers need about eight or more hours of sleep, but because of homework they cannot. Most of the time the homework we get we won't be using; unless we go into that business. There are times homework is a waste since most people don't do it. They use a lame excuse. Homework that we get we don't remember for a test. So why get it? How come we get too much homework? We don't sleep, don't do it, forget it at home, or don't need it when we are older. There are classes let's take math for instance, we get too much a week. There might be questions we have that our parents don't know. Instead of going outside we have to do homework. High school can be tough on us high schoolers. There's a lot expected of us. Especially homework. It will give us stress and tired through the day and night. Some high schoolers even drink caffeine to keep them up to do homework. That isn't healthy for us.
Hope this helps somewhat ^^
Answer:
Standard error: C. 10
Critical value: c. 1.71
Step-by-step explanation:
Standard error:
In which s is the standard deviation of the sample and n is the size of the sample.
In this problem, 
So
Which means that the answer for the first question is c.
Critical value
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 25 - 1 = 24
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 24 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.71, which means that the answer for the second question is also c.
