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Leni [432]
3 years ago
12

Find f(5) for f(x)= 1/9(3)^x A. 27 B. 3 C. 9 D. 81

Mathematics
1 answer:
zhuklara [117]3 years ago
7 0

Answer:

A    27

Step-by-step explanation:

f(5) means x = 5, so substitute 5 into 1/9(3)^x

f(5) = 1/9(3^5) = 1/9(243) = 27

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Khalid carried water bottles to the field to share with his team at halftime. The water bottles weighed
jeka57 [31]

Answer:

<u>Answer</u><u>:</u><u> </u><u>D</u>

{50x}^{2}  + 30x + 10

• first factorise out 10:

= 10(5 {x}^{2}  + 3x + 1)

• then find factors of the quadratic equation in the bracket:

4 0
3 years ago
1/5x-2/3y=30 when y=15
dolphi86 [110]

Answer:

Step-by-step explanation:

<u>Step 1:  Set y to 15 and solve</u>

<u />\frac{1}{5}x - \frac{2}{3}*15=30

\frac{1}{5}x-10=30

<em>Add 10 to both sides</em>

<em />\frac{1}{5}x-10+10=30+10

\frac{1}{5}x=40

<em>Multiply both sides by 5</em>

<em />\frac{1}{5}x*\frac{5}{1}=40*\frac{5}{1}

x=200

Answer:  x=200

5 0
3 years ago
Failinggggggggggg mathhhhhhhhhhhhhhhhhhhhhhhhh
azamat
2. (D)
3. (B) Hope it helps
3 0
3 years ago
Read 2 more answers
Simon drove through some roadworks where the speed limit was 50 mph. Two cameras recorded the time taken to travel 1200 m throug
Tom [10]

Answer:

Speed = 21.43m/s

Step-by-step explanation:

Given

Distance = 1200m -- of the roadworks

Time\ Recorded = 56s

Required

Determine the speed

In this case:

Speed = \frac{Distance\ of\ Roadword}{Time\ Captured}

Speed = \frac{1200m}{56s}

<em></em>Speed = 21.43m/s<em> --- approximated</em>

3 0
3 years ago
K^2+5k-6=0 quadratic formula
s2008m [1.1K]
I hope this helps you



1.k^2+5k-6=0


a=1


b=5


c= -6


disctirminant =b^2-4ac


disctirminant =5^2-4.1. (-6)


disctirminant =49


x1= -(5)+ square root of 49/2.1



x1=-5+7/2


x1=1



x2= -5- square root of 49/2.1


x2= -5-7/2


x2= -6


7 0
3 years ago
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