Answer:
39. I think c
40. F or G because a rectangle is a parallelogram
Answer:
Denote the distance from initial position of Emily to the park is D
=> As the first speed is 5 (mile/hour) and second speed is 9 (mile/hour) and total time is 1 and 5/9 hour, we have:
D/5 + D/9 = 14/5
=> (9D + 5D)/45 = 14/5
=> 14D/45 = 126/45
=> 14D = 126
=> D = 9 (mile)
Hope this helps!
:)
Answer:
Exponential
Step-by-step explanation:
<em>Starter:</em>
According to the title:
"Every day, half a bacteria population dies."
Exponential: y = ab^x ( b > 0 , b ≠ 1)
So the answer is C.
<em>Calculations:</em>
An exponential model is of the form y = a • b^t.
If you start with population of 500 million bacteria
t = 0
so 500 million = a • b^0 = a
Since every day half the population dies then in 1 day population will be 250 million
so a = 500 million, y = 250 million and t = 1
250 million = 500 million • b^1
b = 0.5
Therefore your equation would be
y = 500 million (or whatever the pop) • 0.5^t
Where t = number of days
This could also be written in exponential form ( e = 2.73)
Answer:
D
Step-by-step explanation: I just took the test on edge
First you have to figure out how many times 2/3 goes into 5 1/3, which is 8 times
meaning that she can make 8 shelves!
