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
cricket20 [7]
2 years ago
8

10^r=1 solve for r please

Mathematics
1 answer:
Fed [463]2 years ago
3 0

Answer:

r = 1/10

Step-by-step explanation:

To get to one tenth of a number, the exponent of that number will be one tenth. In equation form, x^1/10=1/10x. Let x equal any real number. Hope I've helped <3

You might be interested in
Which graph represents y = [x] over the domain 2&lt;2&lt;5?
aleksandr82 [10.1K]
I think it’s the one on the bottom left
3 0
3 years ago
Consider the probability that greater than 96 out of 153 DVDs will work correctly. Assume the probability that a given DVD will
ICE Princess25 [194]

Answer:

0.3594 = 35.94% probability that greater than 96 out of 153 DVDs will work correctly.

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 153, p = 0.62

So

\mu = E(X) = np = 153*0.62 = 94.86

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{153*0.62*0.38} = 6

Probability that greater than 96 out of 153 DVDs will work correctly.

97 or more DVDs, which is 1 subtracted by the pvalue of Z when X = 97. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{97 - 94.86}{6}

Z = 0.36

Z = 0.36 has a pvalue of 0.6406

1 - 0.6406 = 0.3594

0.3594 = 35.94% probability that greater than 96 out of 153 DVDs will work correctly.

3 0
3 years ago
Batman took a bicycle trip. In all, he traveled 6 hours at a rate of 28 mph. What was his total distance ?
Mice21 [21]
Distance=speed x time
so it would be 28 x 6=168
7 0
3 years ago
Read 2 more answers
Connor and Angie helped take attendance during their schools practice fire drill if the actual count was between 77 and 89 inclu
wel

Answer:

The most absolute error is 12

Step-by-step explanation:

The formula for absolute error is given by the following relation;

Absolute error, Δx = Value measured, x₀ - Exact (actual) value, x

Δx = x₀ - x

Since the actual count is between 77 and 89, the maximum absolute error will be where the actual value = 77 and the measured value = 89 and vice versa, giving an absolute error of 89 -77 = 12.

The most absolute error = 12.

4 0
3 years ago
Hey can you please help me posted picture of question
Bess [88]
The answer is C. hope this helps.

7 0
2 years ago
Read 2 more answers
Other questions:
  • What is the equation of the line that passes through the point (3,-5)(3,−5) and has a slope of 0?
    14·1 answer
  • How many stuffed animals are on the scale
    10·1 answer
  • At 2.80 per pound,the cheddar cheese costs how many cents per pound ounce
    5·1 answer
  • If a credit card charges you 24% interest per year, what percent will you be 1 point
    9·1 answer
  • Solve this system of equations to find x and y, please, and explain how you did it:
    7·1 answer
  • The table shows the values of a function f(x).
    5·1 answer
  • Solve for x: 5x - 2 = 3x + 8
    13·2 answers
  • Please help again like legit
    5·1 answer
  • Aliya buys p pounds of apples for $2 per pounds. Write an algebraic expression to find the total cost?
    10·1 answer
  • Yesterday, there were 10 problems assigned for math homework. Layla got 2 out of 10 problems correct. What percentage did Layla
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!