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
Kamila [148]
3 years ago
13

The distance around the outside of Cedar Park is 0.8 mile. Joanie ran 0.25 of the distance during her lunch break. How far did s

he run?
Mathematics
2 answers:
ivolga24 [154]3 years ago
5 0
She ran 0.2 miles. You multiply the 0.8 by 0.25 (because you want to find 1/4 of the total) to get 0.2. 


Hope I helped!
salantis [7]3 years ago
5 0

Answer: 0.2

Step-by-step explanation:

To calculate the distance that Joanie run during her lunch break is necessary to multiply the total distance around the outside of Cedar Park (0,8) by the 1/4 of the total distance that she ran (0,25).

So, the expression is:

0,25 . 0.8 = 0,2

Joanie run 0,2 miles during  her  lunch break.

You might be interested in
1.12cm=______mm <br><br> 2.124mm=_______cm<br><br> 3.2cm=________mm<br><br> 4.7mm=_______cm
sashaice [31]

Answer:

1. 11.2 mm

2. 0.2124cm

3. 32mm

4. 4.7cm

8 0
3 years ago
There are two machines available for cutting corks intended for use in wine bottles. The first produces corks with diameters tha
uranmaximum [27]

Answer:

0.6826 = 68.26% probability that the first machine produces an acceptable cork.

0.933 = 93.3% probability that the second machine produces an acceptable cork.

The second machine is more likely to produce an acceptable cork.

Step-by-step explanation:

When the distribution is normal, we use 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.

What is the probability that the first machine produces an acceptable cork?

The first produces corks with diameters that are normally distributed with mean 3 cm and standard deviation 0.10 cm, which means that \mu = 3, \sigma = 0.1

Acceptable between 2.9 and 3.1, which means that this probability is the pvalue of Z when X = 3.1 subtracted by the pvalue of Z when X = 2.9.

X = 3.1

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

Z = \frac{3.1 - 3}{0.1}

Z = 1

Z = 1 has a pvalue of 0.8413

X = 2.9

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

Z = \frac{2.9 - 3}{0.1}

Z = -1

Z = -1 has a pvalue of 0.1587

0.8413 - 0.1587 = 0.6826

0.6826 = 68.26% probability that the first machine produces an acceptable cork.

What is the probability that the second machine produces an acceptable cork? (Round your answer to four decimal places.)

For the second machine, we have that \mu = 3.04, \sigma = 0.04. Same probability we have to find out. So

X = 3.1

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

Z = \frac{3.1 - 3.04}{0.04}

Z = 1.5

Z = 1.5 has a pvalue of 0.9332

X = 2.9

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

Z = \frac{2.9 - 3.04}{0.04}

Z = -3.5

Z = -3.5 has a pvalue of 0.0002

0.9332 - 0.0002 = 0.933

0.933 = 93.3% probability that the second machine produces an acceptable cork.

Which machine is more likely to produce an acceptable cork?

Second one has a higer probability, so it is more likely to produce an acceptable cork.

6 0
3 years ago
(6x^3+9x-8)+(5x-9x^2+7
irinina [24]
Add like terms
I'm assuming that you forgot to put the parenthasees at the end

so exg
4x+8x=12x
2x^2+3x^2=5x^2
3x^2+3x^3=3x^2+3x^3
group like tems
6x^3+9x-8+5x-9x^2+7
6x^3-9x^2+14x-1
6 0
3 years ago
Read 2 more answers
2.
mihalych1998 [28]
Answer:
False

Explanation:
No, a triangle cannot be constructed with sides of 2 in., 3 in., and 6 in.

For three line segments to be able to form any triangle you must be able to take any two sides, add their length and this sum be greater than the remaining side.
3 0
3 years ago
Read 2 more answers
Answer for this question?
mezya [45]
Go to mathpapa.com k
4 0
3 years ago
Other questions:
  • What are the domain and range of the logarithmic function f(x) = log7x? Use the inverse function to justify your answers.
    15·2 answers
  • What 946 x 1367 = what
    12·2 answers
  • What is 10+100+3554?
    14·1 answer
  • Simlplify the expression 52^-5 then write it as a repeated multiplication
    13·2 answers
  • What is 40% of 85? (with an explanation)
    7·2 answers
  • A Geiger counter counts the number of alpha particles from radioactive material. Over a long period of tune, an average of 28 pa
    14·1 answer
  • Find the area of ABC if A = 50°, b = 19ft, c = 28ft
    5·2 answers
  • Graph your linear equation. y=x÷3​
    12·1 answer
  • Which of the following data sets has the mean, median, mode, and range as the same number?
    11·1 answer
  • Help me please. It’s Alagrabra
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!