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
stich3 [128]
3 years ago
9

Which equation below gives an incorrect value for the function k(x) = 512x?

Mathematics
1 answer:
lina2011 [118]3 years ago
3 0

Answer:

D. gives an incorrect value for the function k(x) = 512^{x}

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

<em>Which equation below gives an incorrect value for the function k(x) = </em>512^{x}<em>?</em>

<em>A.) k(2/3)=64 </em>

<em>B.) k(4/9)=16 </em>

<em>C.) k(1/3)=8 </em>

<em>D.) k(2/9)=8</em>

My answer:

Let analyse all 4 possible answers:

  • A.) k(2/3)=64  

<=> k(2/3) = 512^{2/3} = 64

True

  • B.) k(4/9)=16

<=> k(4/9) = 512^{4/9}= 16

True

  • C. k(1/3)=8

<=>  k(1/3)= 512^{1/3}= 8

True

  • D. k(2/9)=8

<=> k(2/9) = 512^{2/9} = 4 not 8

Wrong

Hope it will find you well

You might be interested in
Which of the following lengths can be the sides of a triangle?
Dmitriy789 [7]

Answer:

C. 44 cm, 30cm, and 16 cm

Step-by-step explanation:

Sana nakatulong

7 0
3 years ago
Ok so i need the work and answer for this problem is due asap click the picture.
IRISSAK [1]

Answer:

C. 36

Step-by-step explanation:

There are 217 students and 35 adults.

217 + 35 = 252 people

There are 7 buses for 252 people

252 people ÷ 7 buses = 36 people per bus

7 0
3 years ago
Read 2 more answers
How do you think inequalities are different from equations you have worked with before?
dmitriy555 [2]

Answer:

Inequalities are different from equations.  If you multiply or divide both sides of an equation by the same negative number, the equation remains the same, but If you multiply or divide both sides of an inequality by the same negative number, the inequality reverses.

4 0
3 years ago
What is the best approximation of the solution to the
denis-greek [22]

Answer: Choice C.   (1, -6)

Explanation: The two lines cross at around this location. The solution point is on both lines at the same time.

3 0
3 years ago
PLEASE HELP ME I BEG I WILL GIVE BRAINLIEST
ohaa [14]

Answer:

Mean = (2.2 + 2.4 + 2.5 + 2.5 + 2.6 + 2.7)/6 = 2.48

Standard deviation = √(summation(x - mean)²/n

n = 6

Summation(x - mean)² = (2.2 - 2.48)^2 + (2.4 - 2.48)^2 + (2.5 - 2.48)^2 + (2.5 - 2.48)^2 + (2.6 - 2.48)^2 + (2.7 - 2.48)^2 = 0.1484

Standard deviation = √(0.1484/6

s = 0.16

Standard error = s/√n = 0.16/√6 = 0.065

Part B

Confidence interval is written as sample mean ± margin of error

Margin of error = z × s/√n

Since sample size is small and population standard deviation is unknown, z for 98% confidence level would be the t score from the student t distribution table. Degree of freedom = n - 1 = 6 - 1 = 5

Therefore, z = 3.365

Margin of error = 3.365 × 0.16/√6 = 0.22

Confidence interval is 2.48 ± 0.22

Part C

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

H0: µ = 2.3

For the alternative hypothesis,

H1: µ > 2.3

This is a right tailed test

Since the number of samples is small and no population standard deviation is given, the distribution is a student's t.

Since n = 6

Degrees of freedom, df = n - 1 = 6 - 1 = 5

t = (x - µ)/(s/√n)

Where

x = sample mean = 2.48

µ = population mean = 2.3

s = samples standard deviation = 0.16

t = (2.48 - 2.3)/(0.16/√6) = 2.76

We would determine the p value using the t test calculator. It becomes

p = 0.02

Assuming significance level, alpha = 0.05.

Since alpha, 0.05 > than the p value, 0.02, then we would reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the mean absolute refractory period for all mice when subjected to the same treatment increased.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Consider the statemen P. P.X=5 which of the following is an equivalent statement
    9·1 answer
  • Two lawn care companies are competing for a landscaping contract. Company A charges a $250 monthly consulting fee plus $10 per s
    7·1 answer
  • Which are independent events? Check all that apply. rolling a number cube twice picking 2 marbles from a bag, without replacemen
    15·3 answers
  • a man who is 6 feet tall cats a shadow that is 15 feet long.A tree casts a similar shadow is 22 FT how tall is the tree?
    5·2 answers
  • Which pair shows equivalent expressions?
    7·1 answer
  • Geometry congruent triangles.<br> will give brainliest.
    5·1 answer
  • Miss Adams tested three cameras last weekend. The table below shows the number of pictures
    10·1 answer
  • How can I do this ???​
    6·1 answer
  • A group of 123 students went on a field trip to
    11·1 answer
  • Luis was hired to make some jewelry for a special occasion. He needs to make the jewelry out of an alloy that is 54%silver and h
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!