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ra1l [238]
3 years ago
9

What does 7^x=21 in a logarithmic equation

Mathematics
1 answer:
Leviafan [203]3 years ago
8 0
Loga x=n ⇔ a^n=x
log₇ 21=x

x=log ₇ 21
x=ln 21 / ln7=1.564575034...

Answer: x=log₇ 21
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I’m stuck on number 8 plz help anyone !!
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Answer:

Sally's km/h during the first half hour is 7 .

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Step-by-step explanation:

On the table during the first half hour, Sally traveled 7 km.

From the first stop to the second stop, she traveled 8 km; from the second stop to the third stop, she traveled 6 km; from the third stop to the fourth stop, she traveled 3 km; from the fourth stop to the fifth stop, she traveled 4 km; and from the fifth stop to the sixth stop she traveled 8 km. Therefore The lowest average speed is between the 3rd and 4th stops.

<em />

<em>Plz rate Brainliest because this took a long time.</em>

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Step-by-step explanation:

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Step-by-step explanation:

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vfiekz [6]
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3 years ago
Jim owns an ice-cream store. Use the clues to find out how many ice-cream cones he sold last week. • He sold more than 300 but f
allsm [11]

Answer:

Step-by-step explanation:

Remark

The last digit is 1 3 5  7 9 because the last digit is odd.

The first digit must be a 3 because the number is between 300 and 350

Let the first digit = x

Let the second digit = y

Let the third digit = z

x + y = z

x + y + z = 14                        Substitute z for x + y

z + z = 14                              Combine

2z = 14                                  Divide by 2

2z/2 = 14/2                            

z = 7

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The middle digit is 3 less than the last digit.

y = 7 - 3 = 4

Answer

347

4 0
2 years ago
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