Answer:
Step-by-step explanation:
For a point to be a relative extreme, there must be points on both sides that are not as extreme. That is, the ends of the interval may be extreme values, but do not qualify as <em>relative</em> extrema, since there are not points on <em>both sides</em>.
In the interval [-3, 3], the relative extrema are the turning points.
The relative minimum is at y = -9 on the y-axis.
The relative maxima are at y = -6, between 1 and 2 on either side of the y-axis.
<u><em>Matteo is 4 inches taller than Nico. </em></u>
<u><em>Sarah is wrong because she didn't consider the conversion rate from ft to inches. </em></u>
Height of Matteo = 4 feet 3 inches
Height of Nico = 3 feet 11 inches.
- Now to find the difference in height, we need to first convert both of their heights to inches.
From conversion tables, we know that;
12 inches = 1 ft.
- Thus, their height in inches is;
Height of Matteo = (4 × 12) + 3 = 51 inches
Height of Nico = (3 × 12) + 11 = 47 inches
Thus, difference in height = 51 - 47 = 4 inches.
Thus, Matteo is 4 inches taller than Nico.
- Looking at the method of Sarah, she didn't consider that the unit she was working with. If it was just units and tens subtraction, that method would have worked but she ought to have added 12 to 3 since it is from ft to inches instead of 10 to 3 as in the case of regular numbers without units.
Read more at; brainly.com/question/16978154
He spent 13.5 hrs cutting grass last week.
Answer:
The required amount of mice is 11.82 gram.
Step-by-step explanation:
Given : Assuming that it is known from previous studies that σ = 4.5 grams. If we wish to be 95% confident that the mean weight of the sample will be within 3 grams of the population mean for all mice subjected to this protein diet.
To find : How many mice should be included in our sample?
Solution :
The formula used in the situation is
Where, z value at 95% confidence interval is z=1.96
gram is the mean of the population
gram is the standard deviation of the sample
Substituting the value, to find x sample mean
Therefore, The required amount of mice is 11.82 gram.
Answer:
c) 135
Step-by-step explanation:
dog ratio is 3
45 ÷ 3 = 15
therefore ratio 1 is 15
ratio 9
9×15 = 135
