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Leto [7]
2 years ago
10

Find f(-4) for f(x)=9(3)^x

Mathematics
2 answers:
kupik [55]2 years ago
7 0

Answer:

1/9

-------------

jeka942 years ago
3 0

Answer:

f(-4) = \dfrac{1}{9}

Step-by-step explanation:

f(x) = 9(3)^x

f(-4) = 9(3)^{-4}

f(-4) = 3^2 \cdot 3^{-4}

f(-4) = 3^{-2}

f(-4) = \dfrac{1}{9}

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f(t)=h=-16t^2+20t+6



a=-16, b=20, c =6

Δ=b^2-4ac=20^2-4*(-16)*6=400+384=784

\sqrt{Δ}=\sqrt{784}=28

max:

p=-\frac{b}{2a}=-\frac{20}{-32}=\frac{20}{32}=\frac{5}{8}

max heigh: h=-16(\frac{5}{8})^2+20*\frac{5}{8}+6=-16\frac{25}{64}+\frac{100}{8}+6

h=-\frac{25}{4}+\frac{50}{4}+6=\frac{-25+50+24}{4}=\frac{49}{4}

h=\frac{49}{4} at t=\frac{5}{8}s


will fall down at t:

t=\frac{-20-28}{-32}=\frac{-48}{-32}=\frac{3}{2}=1.5

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8 0
3 years ago
Allison works in a department store selling clothing. She makes a guaranteed salary of $350 per week, but is paid a commision on
alukav5142 [94]

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Step-by-step explanation:

5 0
3 years ago
Help meeee plz I don’t get it
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Answer: F

Step-by-step explanation:

This is basically like 2 rectangles. Find the area of both and add them together.

Remember that the area is l x w.

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The order from least to greatest is 0<u>.8%, 0.556, 1.2 and 10/8</u>

<h3>Ordering of numbers</h3>

In order to order the given numbers, we will first have to write them as a percentage as shown.

Given the number below

10/8, 1.2, 0.556, 0.8%

Convert to percentage

10/8 = 125%

1.2 = 120%

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0.8%

Hence the order from least to greatest is 0<u>.8%, 0.556, 1.2 and 10/8</u>

Learn more on ordering here; brainly.com/question/12399107

#SPJ1

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