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solniwko [45]
3 years ago
10

Find f(2) if f(a) = -4a +5

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

-3

Step-by-step explanation:

plug in 2 where a is

f(a)=-4(2)+5

f(a)=-3

weeeeeb [17]3 years ago
4 0

Answer:

f(2) = - 3

Step-by-step explanation:

To evaluate f(2) substitute a = 2 into f(a), that is

f(2) = - 4(2) + 5 = - 8 + 5 = - 3

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The random variable KK has a geometric distribution with mean 16. Which of the following is closest to the standard deviation of
asambeis [7]

Answer:

E 240

Step-by-step explanation:

Geometric Distribution mean = (1- p) / p

16 = (1 - p) / p

16p = 1 - p  ;  17p = 1 ; p = 1/17 = 0.058  

Standard Deviation = (1 - p) / p^2

= (1 - 0.058) / (0.058)^2

0.942 / 0.003364

= 280 , closest to 240

5 0
3 years ago
Simplify the rational expression:<br> 5y+5/2 ÷ 25y-20/40y²-32y
NNADVOKAT [17]

Step-by-step explanation:

Your problem → 5y+5/2 / 25y-20/40y^2-32y

5y+5/2÷25y-20/40y^2-32y

=5⋅y+5/2÷25×y-20/40×y^2-32×y

=5y+5/2÷25×y-20/40×y^2-32y

=5y+5/2×1/25×y-20/40×y^2-32y

=5y+y/10-20/40×y^2-32y

=5y+y/10-y^2/2-32y

=5y×10+y-y^2×5-32y×10 ÷ 10

=50y+y-5y2-320y ÷ 10

= -269y-5y^2 / 10

4 0
2 years ago
Graph: - 4x + 4y &gt; 20 &amp; 4x + 4y &lt; -12<br>please help !!!!!<br>​
VARVARA [1.3K]
I’m not totally sure about the less and greater signs because I’m not sure you can graph using those signs but either way their are your line equations

8 0
3 years ago
Each time you take your dog to the dog park it costs $1.75. Write an expression that represents the cost of n visits to the dog
Step2247 [10]

Answer:

1.75n

For each visit it costs 1.75, so n visits would be the product of the two.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Help show work<br> Thank you
Anika [276]
1.) v=(l)(w)(h)
V=(9)(9)(9)
V=(81)(9)
V=729in^3

2.) (I forget if this is the real equation to this but this would give you the same answer)

V=(l)(w)(h)
————
2
V=(8)(6)(12)
————-
2
V=576/2

V=288cm^3
7 0
3 years ago
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