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
Luden [163]
3 years ago
6

Nghiệm của phương trình log2(x-2)=3

Mathematics
2 answers:
Phantasy [73]3 years ago
7 0
The correct answer is X =6
vodka [1.7K]3 years ago
5 0

Answer:

x =6

Step-by-step explanation:

log2(x - 2) = log2(8)

x-2 = 8

x=6

You might be interested in
Based on his past record, Luke, an archer for a college archeny practice L auke wesent the number on his past record, Luke, an a
polet [3.4K]

Answer:

Option (A) 0.40951

Step-by-step explanation:

We are given the following information in the question:

P(target) = 0.90

Let the random variable X represent the number of times he hits ring of the target with a shot of the arrow.

The probability distribution of X is

   x:         0              1                2               3               4               5

P(x):    0.00001   0.00045  0.00810   0.07290   0.32805   0.59049

The mean of discrete probability distribution is given by:

\mu = \displaystyle\sum x_iP(x_i)\\\\= 0(0.00001) + 1(0.00045) + 2(0.00810) + 3(0.07290) + 4(0.32805) + 5( 0.59049)\\= 4.5

Now, we have to evaluate

P(x

Option (A) 0.40951 t is the probability that the number of times Luke will hit the inner ring of the target out of the 5 attempts is less than the mean of X.

4 0
3 years ago
Please help me out and explain it to me​
a_sh-v [17]

Answer: C

Step-by-step explanation:

You can solve this by first multiplying both sides of the fraction by the conjugate of the denominator.

In this case, the conjugate is (8 - 2i).

So:

\frac{3-5i}{8+2i} *\frac{8-2i}{8-2i}

Simplify:

\frac{24-46i+10i^2}{64 - 4i^2}

Simplify again, knowing that i^2 = -1

\frac{14 -46i}{68}

Then, divide both numbers in the numerator by 68 to get your answer.

\frac{7}{34} -\frac{23i}{34}

8 0
3 years ago
I need help with 3 questions! In attachments............. 1 done
aev [14]
Hello the correct answer is d have a great one
5 0
3 years ago
Evaluate −12(−2).<br> 14<br> −14<br> −24<br> 24
bixtya [17]
The answer would be positive 24. The reason being is because of the fact that two negatives when multiplied cancel the negative. Also 12 * 2 is 24 so yeah
5 0
3 years ago
Read 2 more answers
Equation of the line contains the points (-3,2) and (5,-5)
makkiz [27]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis

We have the following points through which the line passes:

(x_ {1}, y_ {1}): (- 3,2)\\(x_ {2}, y_ {2}) :( 5, -5)

So the slope is:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {-5-2} {5 - (- 3)} = \frac {-7} {5 + 3} = - \frac {7} {8}

Thus, the equation of the line is of the form:

y = - \frac {7} {8} x + b

We substitute one of the points and find "b":

2 = - \frac {7} {8} (- 3) + b\\2 = \frac {21} {8} + b\\b = 2- \frac {21} {8}\\b = \frac {16-21} {8}\\b = - \frac {5} {8}

Finally, the equation is:

y = - \frac {7} {8} x- \frac {5} {8}

Answer:

y = - \frac {7} {8} x- \frac {5} {8}

6 0
2 years ago
Other questions:
  • What is the answer to y=2x+1
    5·2 answers
  • There is a ​$40 fee to rent a chain​ saw, plus ​$9 per day. Let x represent the number of days the saw is rented and y represent
    14·1 answer
  • How do I get the numbers for the x and y Table ?
    15·1 answer
  • PLEASE HELP ASAP!! VERY IMPORTANT!!!
    11·1 answer
  • In trying to calculate the product of 5 and 12
    7·2 answers
  • What is the csc -405?
    7·2 answers
  • Name the marked angle in 2 different ways.<br> N<br> M<br> L<br> K
    11·1 answer
  • Someone please help me!
    9·1 answer
  • Help me ASAP PLEASE lateral surface area of the triangular prism :)
    7·1 answer
  • 3x^2-39+120 <br> factor this
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!