1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
alekssr [168]
3 years ago
14

What is the exact value of x?

Mathematics
1 answer:
boyakko [2]3 years ago
5 0

Answer:

B

Step-by-step explanation:

5\cdot 21^{5x} = 16 \\\ 21^{5x} = \frac{16}{5} \\\\ 21^{5x} = 3.2 \\\ log 21^{5x} = log 3.2 \\\ 5x\cdot log 21 = log 3.2 \\\ 5x = \frac{log 3.2}{log 21} \\\\\ x = \frac{log 3.2}{5\cdot log 21}


I hope I helped you.

You might be interested in
A community is building a square park with sides that measure 145 meters. To separate the picnic area from the play area, the pa
Natasha_Volkova [10]
You can solve this problem by using the pythagorean theorem.
{a }^{2}  +  {b}^{2}  =  {c}^{2}
Where the a- and b-values represent the sides of the triangle. Since the park is a sqaure, each side is equal. This means that both the a-value and the b-value are the same. Now, you must find the c-value.

145^2 + 145^2 = c^2

21,025 + 21,025 = c^2

42,050 = c^2 *now square root each side of the equation.*

205.06 = c

The length of the diagonal line is 205 meters.
4 0
3 years ago
Read 2 more answers
Compute the exact value of the function for the given x-value without using a calculator. f(x) = 7x for x = 2
Bas_tet [7]

Answer:

14

Step-by-step explanation:

Substitute x = 2 into f(x)

f(2) = 7 × 2 = 14


6 0
3 years ago
Read 2 more answers
Leslie drank 4/5 pint of juice and Hank drank 7/10 pint of juice. Who drank more
amid [387]
Leslie did. If you multiply 4/5 by two, you get 8/10. 8/10 is greater than 7/10. 
5 0
2 years ago
Read 2 more answers
Solve equation 3k+45=8k+25
Brrunno [24]

Answer:

k=4

Step-by-step explanation:

First, we can subtract 3k on both sides. It is ultimately easier to start by subtracting the term with a variable. This would result in 45=5k+25. Then, we can subtract 25 on both sides to get closer to isolating k. This becomes 20=5k. We can then divide by 5 on both sides. This means that k=4.

5 0
3 years ago
Read 2 more answers
A 12 sided die is rolled. the set of equally likely outcomes is { 1,2,3,4,5,6,7,8,9,10,11,12}. find the probability of rolling a
Anton [14]
Probability is 4/12, or 1/3
5 0
3 years ago
Read 2 more answers
Other questions:
  • When rotating a figure, which is equivalent to a -turn counterclockwise rotation?
    14·2 answers
  • And episode of the television show is 60 minutes from when I originally air on activity without commercials the episode is only
    7·1 answer
  • ⦁ Find the area of the trapezoid. Show your work and explain how you solved using First, Next, and Last. (Please help! and thank
    6·1 answer
  • Write -2.42 as a fraction in simplest form?
    8·2 answers
  • Find the perimeter of this shape.
    13·2 answers
  • PLEASE HELP!
    15·1 answer
  • Need a quick answer please
    14·1 answer
  • -3x-6+(-1)<br> i will give brainliest !
    8·2 answers
  • Mrs.Humble is filling bags with peanuts to give as gifts. Each bag will contain 1 3/5 pounds of peanuts. The peanuts cost 4.95 p
    13·1 answer
  • Which one following is true about the data set 3,5,5,7,9
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!