Answer:
$250
Step-by-step explanation:
<h3>
Answer: Choice A</h3>
Explanation:
For regular tessellations, the types of polygons that we can use are
- squares or rectangles
- equilateral triangles
- regular hexagons
We can only pick one of those shapes.
Shapes like regular octagons or pentagons will not work on their own because there is gap or overlap if we tried to glue them together. Think of tiles on the floor. There cannot be any gap or overlap when forming a tessellation.
If you wanted to use octagons to tessellate the plane, then you'd need squares to fill in the gaps. At this point, it's not considered a regular tessellation.
Answer:
t-test
Step-by-step explanation:
t-test is used to determine if their is a significant difference between averages or means of two groups or data set. There are three types of t-test;
Independent sample t-test which compares the means for two group; paired sample t-test which compares at the different times the means from the same data set or group and finally one sample t-test which compares a single group against a known mean. It involves the forming of null hypothesis; the two mean are the same or equal and after several calculations to get some important values, the values are compared with standard values and the null hypothesis is either accepted or rejected.
X^2+10x+25= 24+25
(x+5)^2= 49
x+5= +-7 (plus or minus 7)
x= -7-5
x=-12
x=7-5
x=2
Final answer: x={-12, 2}
