180 seniors taking Pre Calculus are randomly divided into classes. The school is testing both teaching style as well as the use of technology on student performance in math. They have 2 teaching styles: traditional and progressive. They also are testing the use of laptops, graphing calculators, and no technology. After the experiment was conducted they found that students in a traditional class with a graphing calculator scored significantly better than the other groups. Explain what "significantly" means in the statistical context for this study.

the answer is -1 for this question

step-by-step explanation:

answer is 8 r5

step-by-step explanation:

fabric (square meters)                   cloaks

7                                                           21

4/3                                                         4

step-by-step explanation:

we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.

1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.

we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.

therefore, harry will make 21 cloaks from 7 square meters of fabric.

2. let us find how many square meters of fabric will be needed to make 4 cloaks.

first of all we will find fabric needed for 1 cloak by dividing 2 by 6.

we can see that fabric needed for 1 cloak is   square meter. now we will multiply   by 4 to find fabric needed for 4 cloaks.