Answer: volume of pyramid is
100 ft.3
Step-by-step explanation:
The formula for determining the volume of triangular Pyramid is expressed as
Volume = 1/3AH
Where
A represents the area of the triangular base of the pyramid
H represents the height of the pyramid.
The triangular Pyramid has a base of 10 square feet and a height of 30 feet. Therefore,
Volume = 1/3 × 10 × 30 = 100 cubic feet
Answer:
D - Type of restaurant - fast food or more expensive.
Step-by-step explanation:
By a lurking variable we mean or refer to any variable that is unknown and not controlled for or out of individual control. When there is one or more lurking variables in any study it could results in accidental bias. According to Soares (1985), lurking variables are intrinsic and they are not actually caused by “accidents” in real sense. Hence he suggests that “lurking-variable bias” is a more suitable name for accidental bias.
Concluding that individuals who spend a lot on groceries also spend a lot at restaurants could be misleading in the sense that, groceries may have a more uniform price than restaurant regardless of your social class. For instance, type of restaurant could determine food cost. At some restaurant, food is quite expensive at another food is quite affordable. I may not to go any groceries store in a month but I patronize restaurant to eat daily.
It is also possible I don't patronize restaurants! And yet, I am frequent at groceries store.
In real sense, what I spent at groceries might be nothing compare to what I spend at restaurant and vice versa. Hence, the possible lurking variable is type of restaurant - fast food or more expensive which is unknown and not controlled for.
Answer: 
<u>Step-by-step explanation:</u>
(1, 2) and (4, -3)
First, find the slope (m): 
m = 
= 
Next, choose ONE of the points and input the point and slope into the Point-Slope formula: y - y₁ = m(x - x₁)
y - 2 = (x - 1)
y - 2 = 
+ 
y = + 
Then, determine which inequality symbol will result in (-2, 8) being False (since it is not a solution):
y ___ +
8 ___ 
+
8 ___ 
8 >
so ≤ makes the statement False
⇒ y ≤ +
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If you need a "system" of inequalities, then you need another equation.
There are infinite possibilities. Graph the points to see what works.
y < 8 or x > -2 are two examples.
---> I just realized that the system can be simpler than what I did above:
This year per hour: $10.50 = 125%
last year = 100%
therefore: 10.50/125 x 100
= 8.40
friend earned $8.40 last year.
