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amm1812
3 years ago
13

Select the solution(s) of log2x=1−log(x+4).

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

Step-by-step explanation:

log2x = 1 - log(x+4)

log2x = log10 - log(x+4)

log2x = log[10/(x+4)]

2x = 10/(x+4)

2x(x+4) = 10

2x² + 8x - 10 = 0

÷2 both sides of equation

x² + 4x - 5 = 0

(x+5)(x-1) = 0

x = -5, 1

x isn't be -5 because logA, A need to be > 0

So, x value is 1

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Nate mother drives 225 miles to work each month how many miles do she drives in one year show work
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3 years ago
Multiply (2x + 2y)(2x + 2y)
Maslowich

Answer:

4x² + 4y² + 8xy

Step-by-step explanation:

( 2x + 2y ) ( 2x + 2y ) = ( 2x + 2y )²

Formula : -

( a + b )² = a² + b² + 2ab

Here,

a = 2x

b = 2y

( 2x + 2y )²

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7 0
2 years ago
Read 2 more answers
The volume of a cube with sides of length s is given by v = s^3. find the rate of change of the volume with respect to s when s
katrin2010 [14]

The rate of change of the volume with respect to s when s = 15 centimeters is 3375 centimeters

<h3>What is the volume?</h3>

The formula for volume of a cube is given as;

Volume = a³

Where:

a = length of its side

From the information given, we have;

V = s³

Where s = 15 centimeters

Substitute the value into the formula

v = (15)³

v = 3375 centimeters

Thus, the rate of change of the volume with respect to s when s = 15 centimeters is 3375 centimeters

Learn more about a cube here:

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5 0
1 year ago
5 + 1 7/8 and explain answer
anzhelika [568]

Answer:

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Step-by-step explanation:

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5 + 1 + 7/8 = 6 7/8 (six and seven eighths)

8 0
3 years ago
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