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
Genrish500 [490]
3 years ago
6

The Radius of a circle is 5 cm. Find the area of the circle, correct to one decimal place.

Mathematics
1 answer:
lorasvet [3.4K]3 years ago
6 0

Answer:

78.5

Step-by-step explanation:

r^{2}x3.14 (pie)

so then substitute.

5x5=25

25x3.14=78.5

You might be interested in
subtract the product of 3 and 4 from 36. then divide the quotient of 9 and 3, subtracted from fifteen
Butoxors [25]
The first one is 24, and the second one is 12
4 0
3 years ago
Read 2 more answers
State which of the following sets of ordered pairs represents a function. Please pick the best option
IRINA_888 [86]

Answer:

set A and set B...it is the best and right option bro...option c is wrong because 2 elements of domain has relation with 1 range

3 0
3 years ago
Let x denote the lifetime of a mcchine component with an exponential distribution. The mean time for the component failure is 25
aliina [53]

Answer:

0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

The mean time for the component failure is 2500 hours.

This means that m = \frac{2500}, \mu = \frac{1}{2500} = 0.0004

What is the probability that the lifetime exceeds the mean time by more than 1 standard deviations?

The standard deviation of the exponential distribution is the same as the mean, so this is P(X > 5000).

P(X > x) = e^{-0.0004*5000} = 0.1353

0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations

4 0
2 years ago
Can you please help me
Karolina [17]

Answer:

214d or (159+55)d

Step-by-step explanation:

150 + 9 = 159

50 + 5 = 55

159 + 55 = 214

d = how many days.

5 0
2 years ago
Read 2 more answers
What is equivalent to the expression 9(z-6)
Liono4ka [1.6K]
Using the distributive property an equivalent expression would be 9z-54
6 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE ANSWER QUICKLY!!
    10·1 answer
  • Strawberries are $3.50 per pound. you bought $18.25 worth of strawberries (X=?)
    11·1 answer
  • Please help check my answers I beg you!!!!!!!
    5·1 answer
  • Your paint 1/3 of a wall in 1/4 hour. at this rate, how long will it take to paint one wall
    11·1 answer
  • Three out of nineteen students will ride in a car instead of a van. How many ways can those three students be
    6·1 answer
  • You spin the spinner twice. What is the probability of landing on a 6 and then landing on a 5?
    12·2 answers
  • Triangle MNO is congruent to Triangle PQR. What is the measure of
    8·2 answers
  • A rectangle has an area of 48 cm².
    8·2 answers
  • Point P is graphed at (4, 5) shown
    9·1 answer
  • Giving 25 points + brainliest if its correct
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!