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
mina [271]
3 years ago
5

NEED ANSWER ASAP MARKING BRAINLIEST

Mathematics
1 answer:
olga2289 [7]3 years ago
8 0

Answer:

3in

Step-by-step explanation:

You might be interested in
What is the solution set of the equation 6/m +2= m+3/m−1 ?
laiz [17]

Answer:

m = (-3, 2) x = (-1)

Step-by-step explanation:

Just took this K12 test.

5 0
3 years ago
The time taken to assemble a laptop computer in a certain plant is a random variable having a normal distribution of 20 hours an
ludmilkaskok [199]

Answer:

a) 40.13% probability that a laptop computer can be assembled at this plant in a period of time of less than 19.5 hours.

b) 34.13% probability that a laptop computer can be assembled at this plant in a period of time between 20 hours and 22 hours.

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.

In this question:

\mu = 20, \sigma = 2

a)Less than 19.5 hours?

This is the pvalue of Z when X = 19.5. So

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

Z = \frac{19.5 - 20}{2}

Z = -0.25

Z = -0.25 has a pvalue of 0.4013.

40.13% probability that a laptop computer can be assembled at this plant in a period of time of less than 19.5 hours.

b)Between 20 hours and 22 hours?

This is the pvalue of Z when X = 22 subtracted by the pvalue of Z when X = 20. So

X = 22

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

Z = \frac{22 - 20}{2}

Z = 1

Z = 1 has a pvalue of 0.8413

X = 20

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

Z = \frac{20 - 20}{2}

Z = 0

Z = 0 has a pvalue of 0.5

0.8413 - 0.5 = 0.3413

34.13% probability that a laptop computer can be assembled at this plant in a period of time between 20 hours and 22 hours.

4 0
3 years ago
Can someone please help me find the area?
rewona [7]

Answer:

90+20=110 square cm

Step-by-step explanation

(10*(14-5)+(5*(10-6)

=90+20

=110

4 0
3 years ago
Read 2 more answers
NEED HELP ASAP.....At the 2012 Summer Olympic Games in London, in the Men's Shot Put qualifying round, the distances ranged from
jeka57 [31]

Answer:

About 6 athletes.

Step-by-step explanation:

We are concerned only with the percent of athletes that are above one standard deviation.

Between one standard deviation and two standard deviations, there is 13.6% of the athletes.

From 2 to 3, there is 2.1%. Above 3, there is 0.2%.

The sum of those percentages is 15.9% of 40 = 0.159 · 40 = 6.36 or about 6 athletes.

Hope this helps.

6 0
3 years ago
And this is why I hate math.
Novosadov [1.4K]
Complementary angels add up to 90°
so x+18°=90°
so x=90-18=72°
7 0
3 years ago
Read 2 more answers
Other questions:
  • 6th grade-Write an inequality to represent the situation: The temperature stayed above -15 degrees. Thanks guys!
    9·1 answer
  • Complete each step in the following solution.
    6·1 answer
  • Let y represent the total cost of publishing a book (in dollars). Let x represent the number of the copies of the book printed.
    9·1 answer
  • Find the area of the triangle.
    12·1 answer
  • Sammi bought 2dozen valentines. How many valentines did sammi have left after giving 7/8 of them to her classmates
    7·1 answer
  • Which quadratic equation would be used to solve for the unknown dimensions?
    11·2 answers
  • Which coordinates represent the plotted point? Check all that apply.
    14·2 answers
  • Hi! Need help rly quick ☺️, will mark brainilest!!
    14·1 answer
  • Any experts, help please.
    15·1 answer
  • Help me please.<br>I am in need of help HURRY!!​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!