Which logarithmic equation is equivalent to the exponential equation below?
67.21 = ea
A. In a = 67.21
B. loga 67.21 = 2.43
C. lo967.21 2.43 = e
O D. In 67.21 = a

Answers

Answer 1

Answer:

[tex]log_e^{67.21}= a[/tex]

Step-by-step explanation:

The equation is ,

[tex]\implies 67.21 = e^a [/tex]

Here e is the Euler's Number . The log which are defined on the base e are called Natural logarithms.

Say if we have a expoteintial equation ,

[tex]\implies a^m = n [/tex]

In logarithmic form it is ,

[tex]\implies log_a^n = m [/tex]

Similarly our required answer will be ,

[tex]\implies\boxed{ log_e^{67.21}= a }[/tex]


Related Questions

Find the magnitude of a vector with initial point A(3, 4, 10) and terminal point B(8, 4, –2).

A: 0
B: 13
C: 8
D:16

Answers

Answer:

B

Step-by-step explanation:

Use the distance formula in 3 dimensions

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2+(z_{2}-z_{1})^2 }[/tex]

with (x₁, y₁, z₁ ) = (3, 4, 10) and (x₂, y₂, z₂ ) = (8, 4, - 2)

d = [tex]\sqrt{(8-3)^2+(4-4)^2+(-2-10)^2}[/tex]

   = [tex]\sqrt{5^2+0^2+(-12)^2}[/tex]

    = [tex]\sqrt{25+144}[/tex]

    = [tex]\sqrt{169}[/tex]

     = 13 → B

If you have 2 cans of tomato soup, 3 cans of chicken soup, 2 cans of cheese soup, 2 cans of potato soup and 1 can of beef soup what is the probability that he will choose a ca of tomato and a can of cheese soup

Answers

Answer:

1/25

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

probability of choosing a can of tomato and a can of cheese soup = probability of choosing a can of tomato x probability of choosing a can of cheese soup

total number of cans = 2 + 3 +2 + 2 + 1 = 10

probability of choosing a can of tomato = number of can of tomato / total number of cans

= 2/10 = 1/5

probability of choosing a can of cheese soup = number of can of cheese soup / total number of cans

= 2/10 = 1/5

1/5 x 1/5 = 1/25


There are 45 students in a class. If 60% of them are girls, find the number of girls and boys


please help me i am requesting I will mark u as brain list

Answers

Number of girls-27
Number of boys-18

60% of 45 is 27 which is the number of girls.So now you have to subtract 27 by the total which will give you 18

Step-by-step explanation:

here's your solution

==> Total number of students in class = 45

==> percentage of girls in class = 60%

==> number of girls in class = (60/100)*45

==> number of girls = 27

==> number of boys = 45 - 27

==> number of boys = 18

hope it helps

The area of a rectangle if the length is 5 more than 4 times the width, what's the algebraic expression for this question ​

Answers

A= 4w+5

Please mark brainliest

The area of a rectangle if the length is 5 more than 4 times the width, the algebraic expression for this is, A = (4b + 5) × b

What is the area?

An area is total space occupied by two-dimensional or flat surfaces. In other words we can say that it is a number of unit squares present in a closed figure. We use various units for measurement of area like, cm², m², ft², mm².

Given that,

The length is 5 units more than 4 times the width

Suppose,

length = l

width = b

So, according to given condition

l = 4b + 5

Now, the area for rectangle is

A = length × width

A = l × b

A = (4b + 5) × b

Hence, the algebraic expression is (4b + 5) × b

To learn more about Area check:

https://brainly.com/question/16151549

#SPJ2

An event planner can set up 6 tables in 30 minutes. How many tables can the event planner set up in 4.5 hours?

Answers

First convert 4.5 hours to minutes

4.5 hours = 270 minutes

6:30 = ?:270

Divide 270 and 30

270/30 = 9

Then multiply 6 and 9

9*6 = 54

The event planner can set up 54 tables in 4.5 hours(270 minutes)

54 tables

Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.

Answers

Question 7
A
C
D

Question 8
A
B
D

HELPP plz I need the answer with step by step don't send a file plz

Answers

Answer:

13

Step-by-step explanation:

5^2 + 12^2 = Y

Sqrt Y = X

Six equilateral triangles are connected to create a regular hexagon. The area of the hexagon is 24a2 – 18 square units. Which is an equivalent expression for the area of the hexagon based on the area of a triangle?

6(4a2 – 3)
6(8a2 – 9)
6a(12a – 9)
6a(18a – 12)

Answers

The answer is A. 6(4a^2-3)

Answer:

A. 6(4a²-2)

Step-by-step explanation:

Got it correct… You’re welcome.

a recipe for sparkling water juice calls for 1 1/2 quarts of sparkling water and 3/4 quart of grape juice

a. how much grape juice would you need to mix with 15/4 quarts of sparkling water

b. how much of each ingredients would you need to make 100 quarts of punch

Answers

Answer:

You would need 18 quarts of sparkling water to mix with 9 quarts of grape juice

Step-by-step explanation:

1 1/2 ---------> 3/4

x --------------> 9

We clear the value of x:

x = ((9) / (3/4)) * (1 1/2)

Rewriting we have:

x = ((9) * (4/3)) * (1 1/2)

x = (36/3) * (1 1/2)

x = (12) * (1 1/2)

x = (12) * (3/2)

x = 18

To solve the equation 34x=15, Abby multiplied both sides by ¾ and got a solution of x=1114. Explain the error that Abby made and then find the correct value of x.

Answers

Answer:

x = 20

Step-by-step explanation:

3/4x = 15

Abby's calculation:

3/4x = 15

Multiply both sides by 3/4

x = 1114

Abby's error was multiplying both sides by 3/4 instead of dividing both sides by 3/4 to get the value of x

Correct calculation:

3/4x = 15

Divide both sides by 3/4

3/4x ÷ 3/4 = 15 ÷ 3/4

x = 15 × 4/3

x = 60/3

x = 20

Check:

3/4x = 15

3/4*20

= (3*20) / 4

= 60/4

= 15

3/4*20 = 15

helppppppppppppppppppppppppppp

Answers

Answer: A

Step-by-step explanation:

What is the value of 3/5 divide 2/5
A. 6/25
B. 2/3
C. 6/5
D. 3/2
E.25/6

Answers

The answer is E I did a test like this before and they try to trick you

-3.5 x 0.2 =??? ;w;


A. -0.7
B. 0.7
C. -3.3
D. -0.7

Answers

Answer:

A and D

Step-by-step explanation:

It can't be B because of the negative...

It would have to be less than 3.3 since 0.2 is less than and the 3.3 is negative

A and D are the same?

-3.3 * 0.2 = -0.7

Write the equation of a line that passes through the point (0,5) and has a slope of 4/5

Answers

Answer:

[tex]m = \frac{4}{5} \\ from \: \: y = mx + c \\ at \: (0,5) \: \: \\ 5 = 0 \times \frac{4}{5} + c \\ c = 5 \\ equation \: is \: \: y = \frac{4}{5} x + 5[/tex]

Sarah had 25 candies. Sarah gave 2/5 of the candies to her sister. Of the amount left, she gave 2/3 to her friend. How many candies does Sarah have left for herself?

Answers

3 left for herself (:

Answer:

5 candies left for herself

Step-by-step explanation:

Oceanside Bike Rental Shop charges 13 dollars plus 7 dollars an hour for renting a bike. Sandy paid 41 dollars to rent a bike. How many hours did she pay to rent the bike?

Sandy rented the bike for _____
hours.

Answers

STOP SENDING LINKS like honestly

you dont have to show work just write the answers plz help

Answers

Answer(s):

1. 31.42

2. 50.27

3. 94.25

4. 62.83

5. 43.98

6. 12.57

7. 100.53

8. 25.13

9. 75.4

6th grade advanced / 7th grade
5 x (-2w - 4) = (__)

Answers

-10w - 20

5 ( -2w - 4 ) =
5(-2w) - 5(4) =
-10w - 20

What is the remainder when x^3 - 1 is divided by (x + 2)?

Answers

Answer:

-9

Step-by-step explanation:

Use synthetic division here.  The divisor will be -2, which comes from the divisor (x + 2):

-2    /      1    0    0    -1

                   -2    4    -8

       -------------------------

              1      -2   4    -9

The remainder is -9.

Answer:

Negative 9 or -9 is the answer.

What’s the ratio of the surface area?
20:4
4:1
16:1
64:1

Answers

the answer of the question is 16:1

Find the surface area of
the prism.
14 in.
7 in.
5 in.
The surface area is _in2

Answers

The surface area is 406in2 hoped this helped :)

Solve the Inequality for x
x/2+3/2<5/2

Answers

Answer:

x<2

Step-by-step explanation:

I didnt feel like typing it out but the explanation is in the picture hope this helps :)

Which expression is a factor of 9,2- 4r + 1? F3r-1 Gr-1 H 9r - 1 I J There are no real factors.​

Answers

Answer:

use photomath bestie

Membership in a digital library has a $5 startup fee and then costs $9.95 per month. Membership in a video streaming service costs $7.99 per monrh with no startup fee. Use vocabulary words to explain how this information could be used to write an expression for the total cost of both memberships after m months

Answers

Answer:

Wait ima ask my mom to help you with this.

Step-by-step explanation:

True or False: A secant passes through a circle once where as a tangent passes through a
circle twice.

Answers

Answer:

false

Step-by-step explanation:

A secant of a curve is a line that intersects the curve at least twice.

How many four letter words can be made from the letters X, B, O, M, T?

Answers

Answer:

tomb

explanation:

thats it

What is the solution to the equation 1.2m - 0.8 = -2.Om?
m = 0.25
m = 0.4
m = 1
m = 4

Answers

The answer will be 0.25

Fatima paid for 5 pallets of grass to be delivered.
Each pallet of grass cost $129.95.
Fatima paid $76.20 for delivery.
What is the total amount Fatima paid?

Answers

Answer:

729.5

Step-by-step explanation:

3 + 8 > 27
Helppp lolllhshsdhfbdb

Answers

Answer:

What do you need to answer?

Answer:

11 > 27 False its smaller..

Step-by-step explanation:

Help ASAP before 2:10

Answers

Answer:3 choice

Step-by-step explanation:

When you have this || you put the opposite mark

Answer:

D

Step-by-step explanation:

-6

-2

|-4|

|-5|

6

The || means "absolute value". Thats the distance from 0 on a number line.

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