Answer:
Irrational
Step-by-step explanation:
x = 
y = 
4.24264069....
It has no recognizable pattern and it goes on forever. Therefore, it is irrational.
Answer:
3. The number of copies he made is 1.25 standard deviations more than the mean number of copies made by teachers.
Step-by-step explanation:
In statistics, a z-score is measurement that describes a value's relationship to the mean and allows us to compare the value and the mean. It tells us how many standard deviations above or below the population mean.
Mr. Thomas has a z-score of 1.25.
He made 782 copies last week. The statistic this is being compared to is the mean of 550 copies by teachers per week at Lamley High School.
Therefore, the best interpretation is Mr. Thomas made 1.25 standard deviations more than the mean number of copies. The correct answer is <u>choice 3.</u>
Let's make sure the other choices are incorrect.
- The first answer is incorrect because a z-score doesn't compare the exact values, but uses the standard deviation to compare.
- The second answer is incorrect because he made 782 copies, while the mean was 550. He made <u>more</u> copies, plus the z-score is positive.
- The fourth and fifth answers are incorrect because the z-score doesn't use the median to compare.
Answer: 6 jars
Step-by-step explanation:
All you need to do is divide 2 by 1/3. This is the same thing as multiplying 2 by the reciprocal of 1/3 (just flip the fraction) which is 3/1 or 3. Now, just multiply 2 and the reciprocal of 1/3, which we found out was three, and you should should get your answer of 6 jars. Hope this helps!
Answer:
<span>y=−24</span>
Explanation:
<span><span>18</span><span>(5y+64)</span>=<span>14</span><span>(2y+20)</span></span>
multiply both sides by 8:
<span>5y+64=2<span>(2y+20)</span></span>
multiply out brackets:
<span>5y+64=4y+40</span>
subtract 4y from both sides:
<span>y+64=40</span>
subtract 64:
<span>y=40−64=−24</span>
<span>y=−<span>24
</span></span>
Answer:
A: 20:10=2:1
B: y=2x
c he can have 2 flowers per seed packet
Step-by-step explanation:
A: When you look at the coordinates of the graph, you can see the proportionallty at point (10/20)
B: the equoation is proportionalty multplied by x + y axis section (in this case 0)
C: The proportionality explains the relationship:
x represents the flowers
y represents the seed packets
