3 years ago

If the function f is defined by f(x)=3x+4, then 2f (x) +4=

Mathematics

1 answer:

Karolina [17]3 years ago

6 0

$f(x)=3x+4 \\ therefore \\ 2*f(x)+4=2(3x+4)+4=6x+8+4=6x+12$

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A Web music store offers two versions of a popular song. The size of the standard version is 2.8 megabytes (MB). The size of the

Serga [27]

Answer:

Number of high quality version downloads = 880

Step-by-step explanation:

Let,

x be the number of standard version songs downloaded

y be the number of high quality version songs downloaded

According to given statement,

x+y=1600 Eqn 1

2.8x+4.1y=5624 Eqn 2

Multiplying Eqn 1 by 2.8 to eliminate x

2.8(x+y=1600)

2.8x+2.8y=4480 Eqn 3

Subtracting Eqn 3 from Eqn 2

(2.8x+4.1y)-(2.8x+2.8y)=5624-4480

2.8x+4.1y-2.8x-2.8y=1144

1.3y=1144

Dividing both sides by 1.3

$\frac{1.3y}{1.3}=\frac{1144}{1.3}\\y=880$

Hence,

Number of high quality version downloads = 880

3 0

3 years ago

Evaluate<img src="https://tex.z-dn.net/?f=10%5E%7B6%7D" id="TexFormula1" title="10^{6}" alt="10^{6}" align="absmiddle" class="la

katovenus [111]

121,000,000,000
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3 years ago

How many centimeters are in 2.5 meters?

devlian [24]

Answer:

250

Step-by-step explanation:

1 meter = 100 centimeters

2.5 x 100 = 250

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3 years ago

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HACTEHA [7]

V= pi *r ^2 *h for a cylinder
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3 years ago

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Daniel [21]

D. is the answer. Your welcome

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3 years ago