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IrinaK [193]
2 years ago
11

True or False: The starting value of an exponential function determines if it

Mathematics
2 answers:
jek_recluse [69]2 years ago
7 0

Answer:

False

Step-by-step explanation:

f(x) = ab^x

The starting value is a and it is the y intercept, not the starting value. Whatever is in the b value determines if it's exponential growth or exponential decay.

damaskus [11]2 years ago
4 0

Answer:

True.

Step-by-step explanation:

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Can someone answer 15b
NISA [10]
A)

well, we know the elevator's rate is -20 f/s, ok, so every second, is dropping 20 feet, therefore, "y" is "distance from the ground floor", so when y = 0, meaning the distance to the ground floor is 0, so you ARE at the ground floor then.

and "x" is how many seconds you've been in the elevator.

now, she got in the elevator for 6 seconds, so, the elevator went down by 20 * 6, or 120 feet down, reason why the slope is negative, when she stopped, she was 350 feet away from the ground floor still though.

if the elevator went down 120 feet, and she's still 350 feet from the ground floor, that means  she boarded the elevator at 120 + 350 feet, or 470 feet.

b)

\bf \begin{array}{lcccllll}
&\stackrel{\textit{elapsed seconds}}{x_1}&\stackrel{\textit{ft from ground-floor}}{y_1}\\
%   (a,b)
&({{ 6}}\quad ,&{{ 350}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies -20
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-350=-20(x-6)
\\\\\\
y-350=-20x+120\implies  y=-20x+\stackrel{y-intercept}{470}
6 0
3 years ago
Jonathan bought a calculator for X$. Cindy bought the same calculator for 3 times more than Jonathan paid for his calculator. Wh
Andrej [43]

Answer:

3x or 3*x

Step-by-step explanation:

5 0
3 years ago
Given: △ABC, AB=5√2 m∠A=45°, m∠C=30° Find: BC and AC
Naddik [55]

Answer:

BC = 10, AC= approximately 13.66 OR 5+5 √3

Step-by-step explanation:

Law of Sines

5 0
3 years ago
Writing
Afina-wow [57]

Answer:

b=17

Step-by-step explanation:

b=(45+6)/3

b=51/3

b=17

she bought 17 books since the original price of evereything was 51 dollars before the discount of 6 dollars.

3 0
2 years ago
17) please help with this question!!!<br> BraiNLIEST AND 20 POINTS :)
valentinak56 [21]

Answer:

A

Step-by-step explanation:

8 gallons of regular gas with 10% and 2 gallons with 85%

8 x 10 =80%

2 x 85 =170%

170+80=250%

10 gallons each with 100%, so 10 x 100 =1000%

250% of 1000% = 1/4 or 25% ethanol

Hope this helps!

4 0
3 years ago
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