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2 years ago

What valur of x makes the equation below true? 9^5 * 9^7=9^x

Mathematics

1 answer:

klasskru [66]2 years ago

8 0

Answer:

x=12

Step-by-step explanation:

(9^5)(9^7)=9^x

282429536481=9^x

<em>Step 1: Flip the equation.</em>

9^x=282429536481

<em>Step 2: Solve Exponent.</em>

9^x=282429536481

log(9^x)=log(282429536481)(Take log of both sides)

x*(log(9))=log(282429536481)

x=log(282429536481)/log(9)

x=12

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3 years ago

In a cave, a stalactite gets 44 millimeters longer each year. this year it is 72 centimeters long. how many years until it is 1

iragen [17]

Answer:

6.36 years (the .36 repeats), so rounded is 6.4.

Step-by-step explanation:

First, I'm going to convert all measurements to meters.

Since 1000 mm = 1 m, divide 44 by 1000.

44/1000 = 0.044 m

Since 100 cm = 1 m, divide 72 by 100.

72/100 = 0.72 m

Next, I'm going to setup an equation using y = mx + b.

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1 - 0.72 = 0.044x + 0.72 - 0.72

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2 years ago

The probability distribution for a game is shown in the table below.

nydimaria [60]

Given:

It is given that

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Explanation:

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So,

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3 years ago

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—- = ——
100 ?
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3 years ago