Answer:
2.8
Step-by-step explanation:
From the similarity ratio we can calculate the missing side length for the smaller rectangle
and when we add all side lengths the answer is 2.8
Answer:
i think it x² so it can be. ot correct
Let
x-------> √150
so
x²=150
we know that
10²=100
11²=121
12²=144
13²=169
x²=150
so
x< 13
x> 12
12< x<13
<span>the value of x is in the interval (12,13)
</span>
----------*----------------------*----------*--------------*-------------------*------
11 12 √150 13 14
16 ounces in a pound
16*3=48
48 ounces of mixed nuts
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.
