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nalin [4]
2 years ago
6

Which is an exponential decay function

Mathematics
2 answers:
dezoksy [38]2 years ago
6 0

Answer:

should be either b or c

Step-by-step explanation:

ee ni mee ni my nee mo

sveta [45]2 years ago
5 0
An exponential decay function has the form y = ka^x where a is between 0 and 1

In the first answer a > 1 so it is an exponential growth function

In the second answer (4/5)^-x = (5/4)^x so again a growth function

In the third answer (8/7)^-x = (7/8)^x so this is an exponential decay function
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6. Ed drives from Jefferson to Holden, a distance of 250 miles. He then travels on to
andreev551 [17]

Answer:

The constant speed with Ed is travelling is 60 mile per hour

Step-by-step explanation:

Given as :

The distance cover to travel from Jefferson to Holden is (D1) 250 miles

The distance cover to travel from Holden to Paxton is (D2) 50 miles

Total time taken to complete entire journey = T = 5 hours

Let The constant speed of Ed = S mph

Time = \frac{Distance}{Speed}

Or, Time = \frac{D1}{S}  + \frac{D2}{S}

Or, 5 hour =  \frac{250}{S}  + \frac{50}{S}

Or, 5 × S = 250 + 50

So,  5 × S = 300

∴           S = \frac{300}{5}

I.e         S = 60 mph

Hence , The constant speed with Ed is travelling is 60 mile per hour Answer

6 0
3 years ago
IM GIVEN BRAINLIEST!! :)
kiruha [24]

Answer: 975.

A 28% discount makes 702 72% of the original price, so 702/.72 gives 975

Hope this helps :)

8 0
2 years ago
Help me out ? it would help alot
Dafna1 [17]
The method that is not correct is brandon's method.
8 0
3 years ago
Read 2 more answers
Given f'(x)=(x-4)(6-2x) find the x-coordinate for the relative minimum of the graph f(x).
vlabodo [156]
<span>The graph you plotted is the graph of f ' (x) and NOT f(x) itself. </span>

Draw a number line. On the number line plot x = 3 and x = 4. These values make f ' (x) equal to zero. Pick a value to the left of x = 3, say x = 0. Plug in x = 0 into the derivative function to get

f ' (x) = (x-4)(6-2x)
f ' (0) = (0-4)(6-2*0)
f ' (0) = -24

So the function is decreasing on the interval to the left of x = 3. Now plug in a value between 3 and 4, say x = 3.5

<span>f ' (x) = (x-4)(6-2x)
</span><span>f ' (3.5) = (3.5-4)(6-2*3.5)
</span>f ' (3.5) = 0.5

The function is increasing on the interval 3 < x < 4. The junction where it changes from decreasing to increasing is at x = 3. This is where the min happens.

So the final answer is C) 3
5 0
3 years ago
Which three-dimensional object is formed when the shape is rotated about the axis as shown?
Alinara [238K]

Answer:

Pyramid

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
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