Answer:
D
Step-by-step explanation:
If you multiply all sides by 2 you get the same dimensions.
Answer:
a=g-b/-c
Step-by-step explanation:
Found you.
Answer:
15>x>9
Step-by-step explanation:
There are two rules about triangle sides.
1) The two shortest sides must add up to a length bigger than the longest side, also known as the hypothenuse
2) The hypothenuse is the longest side of the triangle
In other words, x and 6 must add up to a number that's less than 15 because 15 is longest side, but must be more than 9. So x can be any value between 9 and 15
Answer:
The answer is A.
Step-by-step explanation:
This is quite the odd question to see on homework, but looking at it a certain way helps determine the answer. two fourths are shaded in, and so is one twelfth. Since the other five twelfths are blank, it can be interpreted that the model is showing us A. This can be checked on a scientific calculator.
.5 / (1/12) = 6
Therefore, A is correct.
A: Suppose Mr. Moore decides to use 20 seventh graders as the sample. Is this sample a random sample? Explain your reasoning.
Ans: No, because he only chose the seventh graders which is invalid since he wants to have to use the mean height which involves the 6th, 7th and 8th graders.
B: Mr. Moore decides to use a random number generator to select 20 students from the school. Suppose that when choosing 20 students using the random generator on the graphing calculator, Mr. Moore’s sample is all eighth graders. Does that mean the sample is not a random sample? Explain your reasoning.
Ans: No, it is still a random sample. Since he is using a random generator, there is a possibility that the random generator would pick all students from the 8th grade. Unlike the first one, the random generator is not biased towards any grade, it is just a coincidence.
