Answer:
The answer is x=4
1.Move 7 to the other side (which makes it become a negative)
2.solve 19 -7=12
3.12 divided by 3=4
x=4
Answer:
The null hypothesis would say that class size has no effect on students learning.
Step-by-step explanation:
Null hypothesis is a type of hypothesis that is used in statistics which proposes that there is no difference between a certain characteristic of a population or the data - generating process.
Now, in this question,the school district is considering increasing class size in the elementary schools but we want to check whether larger classes may have a negative effect on students learning.
Thus, the null hypothesis would reject this claim of larger classes having negative effect on students and say that class size has no effect on students learning.
Answer
f(x) has 1 x intercept at x=0 because there is an x value that exists when y=0. For g(x), by adding 2 to 
it moves the parent function up 2 so there is now no x-intercept.
Step-by-step explanation:
The length of the side joining points (-3, -1) and (1, 3) is given by
The length of the side joining points (1, 3) and (3, 1) is given by
The area of a rectangle is given by length times width.
Thus, the area of the given rectangle is given by
Answer:
x=2.5, y=-5. (2.5, -5).
Step-by-step explanation:
5y+2(2.5)=-10
5y+5=-10
5y=-10-5
5y=-15
y=-15/5
y=-5
