Answer:
The tea's actual cost is $116.25
Step-by-step explanation:
* Lets revise how to find the z-score
- The rule the z-score is z = (x - μ)/σ , where
# x is the score
# μ is the mean
# σ is the standard deviation
* Lets solve the problem
- The average cost of a glass of iced tea is $1.25
- The standard deviation of it is 7 cents
- A new restaurant charges a price for iced tea that has a
z-value of -1.25
* Lets change the average cost to cent
∵ $1 = 100 cents
∴ The average cost of a glass of iced tea = 1.25 × 100 = 125 cents
∵ z = (x - μ)/σ
∵ z = -1.25
∵ μ = 125
∵ σ = 7
∴ -1.25 = (x - 125)/7 ⇒ multiply both sides by 7
∴ -8.75 = x - 125 ⇒ add 125 to both sides
∴ 116.25 = x
* The tea's actual cost is $116.25
Answer:
Step-by-step explanation:
Given
Transformation = Rx-axis
Required
Determine the image
When rule Rx-axis is applied to a point (x,y),
The new coordinate point is (x,-y)
<em>In other words, the y coordinate is negated</em>
So, when rule Rx-axis is applied to
The image of the point is
Answer:
C - a stack of 15.6 watermelons
Step-by-step explanation:
Lets first go through each option:
<u>"A shopping receipt that totals $4.90"</u>:
This is an appropriate answer since many items sold are not priced at exact dollars (where there are no cents), so having $4.90 as the total cost after shopping is appropriate.
<u>"A soccer game where the average score is 4.7"</u>:
This is also an appropriate result since it is the <em>average</em> score of a soccer game, so finding a decimal is appropriate.
<u>"A stack of 15.6 watermelons"</u>:
This is not an appropriate result since it would be strange to say a 'stack' or group of something that is not a whole number.
<u>"A classroom with 24 students"</u>:
This is an appropriate result since the number of students is a whole number not a decimal.
Hope this helps :)
Answer:
Your answer is (0,-18)
Step-by-step explanation:
The Y Intercept is (0, -18) and the X Intercept is (18/5, 0)
Answer:
37
Step-by-step explanation: add it all and you will get 37
