Answer:
about 6.6 years
Step-by-step explanation:
41,500=14,000*.45*x
41,500=6,300*x
41,000/6,300=x
6.5873=x
6.6=x
Answer:
<em>(a) 3 inches
</em>
<em>(b) Her scale model drawing WILL fit on the piece of paper 8.5 by 7 inches</em>
Step-by-step explanation:
<u>Scaling
</u>
We use scales to represent realities in reduced spaces. In the case of lengths or surfaces, the scale allows us to draw the shapes in normal sheets of paper.
(a)
Kelly's rock garden has a length of 6 feet. She uses a 1 inch:2 feet scale. this means that the model length is
6 feet*1 inch/2 feet = 3 inches
(b)
The width of the model is 5 inches, keeping the same scale it means the real length is
5 inches * 2 feet / 1 inch = 10 feet
The model will have 3 inches by 5 inches, it perfectly fits on any regular piece of paper
B. Parallel faces
Not all sides need to be parallel and a polygon has only 1 face unless cut
Answer:
Part A. C Part B. D
Step-by-step explanation:
Part A: First, if you know you want to have equal than or more than 78 then you know it goes on the right side of the inequality. Next, you have to pay attention to the inequality and remember it's meaning. !!!Remember!!!!
This: 10<11 means 10 is less than 11, or you can read it as 11 is greater than 10. Use that to choose between C and D.
Part B: This question requires you to solve the inequality and then construct a graph. You can easily take off A and C because you know you already have positive 13 sold and therefore your total will be positive.
So, solve the inequality to find C and reread the question so you remember the goal of this coat drive (remember the sign you used in Part A); once you do that you can choose between B and D.
Answer:
Step-by-step explanation:
we know that
In this problem we have a exponential function of the form
where
x ----> is the number of years since 2009
y ----> is the population of bears
a ----> is the initial value
b ---> is the base
step 1
Find the value of a
For x=0 (year 2009)
y=1,570 bears
substitute
so
step 2
Find the value of b
For x=1 (year 2010)
y=1,884 bears
substitute
The exponential function is equal to
step 3
How many bears will there be in 2018?
2018-2009=9 years
so
For x=9 years
substitute in the equation
