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fomenos
3 years ago
10

Need answers for 13, 12, and 13

Mathematics
1 answer:
Marysya12 [62]3 years ago
5 0

Step-by-step explanation:

-0.45 = 9/20

2.77= 2 7/9

5.55  = 5 5/9

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Find (f – g)(x) if f(x) = 2x – 3 and g(x) = 4x + 8.
Aleks04 [339]

f(x) - g(x) = 2x-3 -(4x+8)

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4 0
3 years ago
Y is directly proportional to x,and y=216 when x=2. Find y when x=7.
makkiz [27]
\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
\begin{cases}
y=216\\
x=2
\end{cases}\implies 216=k2\implies \cfrac{216}{2}=k
\\\\\\
108=k\qquad therefore\qquad \boxed{y=108x}
\\\\\\
\textit{when x = 7, what is \underline{y}?}\qquad y=108(7)
6 0
3 years ago
Please help me ASAP
V125BC [204]
I'd say it's "convergent and doesn't have a sum"

because it's multiplying by 3 to get every new number and switching between ± after every new number. there is no sum because it's an infinite series.
8 0
3 years ago
Amanda uses the recipe shown to make punch for a family party:
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Nancy also has a mirror that measures 20.32 centimeters long. What is the length of Nancy’s mirror in inches?
tino4ka555 [31]

Answer:

C: 8.00

Step-by-step explanation:

1 in = 2.54 cm

l = 20.32 × 1/2.54

l = 8.00 in

The length of Nancy’s mirror is 8.00 in.

3 0
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