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MariettaO [177]

2 years ago

7

laney pays $0.99 for each song she downloads from the internet. in total she paid $24.75 for songs from the internet. how many s

ongs did lane download

1 answer:

dangina [55]2 years ago

6 0

Laney would have downloaded 25 songs

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How do you solve these problems?

Rzqust [24]

A)

$\bf log_4(x)=3\\\\
-----------------------------\\\\
log_{{ a}}{{ a}}^x\implies x\qquad \qquad 
\boxed{{{ a}}^{log_{{ a}}x}=x}\impliedby 
\begin{array}{llll}
\textit{we'll use this}\\
\textit{cancellation rule}
\end{array}\\\\
-----------------------------\\\\
4^{\cfrac{}{}log_4(x)}=4^3\implies x=4^3$

b)

$\bf 3^{2y}=81\qquad 
\begin{cases}
81=3\cdot 3\cdot 3\cdot 3\\
\qquad 3^4
\end{cases}\implies 3^{2y}=3^4\impliedby 
\begin{array}{llll}
\textit{same base}\\
exponents\\
must\ be\\
the\ same
\end{array}
\\\\\\
2y=4\implies y=\cfrac{4}{2}\implies y=2$

6 0

3 years ago

Teds science class collects aluminum cans to sell to the recycling center. the center pays a fixed amount for each kilogram of a

tatuchka [14]

The Center Pays<span> $0.002 For </span><span>Each Kilogram</span>

3 0

2 years ago

If f(x) = 2x2 - 5 and g(x) = x2 - 4x - 8, find (f - g)(x).

oksano4ka [1.4K]

Answer:

B. ) x² + 4x + 3

Step-by-step explanation:

(f-g)(x) = f(x) - g(x) =

(2x²-5) - (x²-4x-8) =

2x² - x² + 4x + 8 - 5 =

x² + 4x + 3

8 0

2 years ago

Help me no links please

REY [17]

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5 0

2 years ago

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Which of the following are invloved in graphs or linear functions?

olga_2 [115]

Answer:

I dont know you never explain properly

Step-by-step explanation:

8 0

2 years ago