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
Leno4ka [110]
3 years ago
7

Need help with this answer ​

Mathematics
2 answers:
harina [27]3 years ago
6 0

Answer:

There is no question

Step-by-step explanation:

ad-work [718]3 years ago
4 0

Answer:

which one?

Step-by-step explanation:

You might be interested in
write a fraction with a decimal value between 1/2 and 3/4. write both the fraction and the equivalent decimal
Irina-Kira [14]
The fraction 5/8 is a fraction between 1/2 and 3/4. Its decimal form is 0.625
6 0
4 years ago
The perimeter of the cover of a math textbook is 34 inches. if the width of the cover is 7 inches, what is the length of the cov
Sauron [17]
The length would be 10 inches.
to find perimeter, you add length+length+width+width.
since both widths and both lengths have to be the same, u add the width 2 times or 7+7=14.
next u subtract 14 from 34 or 34-14=20. 
since u still have 2 lengths that are equal, u divide 20 by 2 or 20/2=10

hope this helps! :)
7 0
3 years ago
The time taken to complete a motorcycle race is normally distributed, with an average time (µ) of 2.5 hours and a standard devia
torisob [31]

Using the normal distribution, there is a 0.5398 = 53.98% probability that a randomly selected cyclist will take at least 2.45 hours to complete the race.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

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

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 2.5, \sigma = 0.5

The probability that a randomly selected cyclist will take at least 2.45 hours to complete the race is <u>one subtracted by the p-value of Z when X = 2.45</u>, hence:

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

Z = \frac{2.45 - 2.5}{0.5}

Z = -0.1

Z = -0.1 has a p-value of 0.4602.

1 - 0.4602 = 0.5398.

0.5398 = 53.98% probability that a randomly selected cyclist will take at least 2.45 hours to complete the race.

More can be learned about the normal distribution at brainly.com/question/4079902

#SPJ1

3 0
2 years ago
one side of a kite is 1 cm less than 4 times the length of another. if the perimeter is 38 cm, find the length of each side
lawyer [7]
We can use a system of equations to solve this.
Length 1 = x
Length 2 = y

Set up the system.
2x+2y=38
x+1=4y

Isolate the variable on one equation.
x=4y-1

Substitute that into the other equation.
2(4y-1)+2y=38

Solve.
8y-2+2y=38
10y=40
y=4

Substitute back into other equation.
x=4(4)-1=16-1=15

The lengths are 15 cm and 4 cm.

Hope this helps!
4 0
3 years ago
Triangle J is shown below. James drew a scaled version of Triangle J using a scale factor of 4 and labeled it
Novay_Z [31]

Answer:

The area of triangle K is 16 times greater than the area of triangle J

Step-by-step explanation:

we know that

If Triangle K is a scaled version of Triangle J

then

Triangle K and Triangle J are similar

If two triangles are similar, then the ratio of its areas is equal to the scale factor squared

Let

z -----> the scale factor

Ak ------> the area of triangle K

Aj -----> the area of triangle J

so

z^{2}=\frac{Ak}{Aj}

we have

z=4

substitute

4^{2}=\frac{Ak}{Aj}

16=\frac{Ak}{Aj}

Ak=16Aj

therefore

The area of triangle K is 16 times greater than the area of triangle J

4 0
3 years ago
Read 2 more answers
Other questions:
  • Item 9 A sports store donates basketballs and soccer balls to the boys and girls club. The ratio of basketballs to soccer balls
    7·1 answer
  • If Melissa puts 28 3/8 ounces of water into each vase, how many total ounces of water will she need?
    15·1 answer
  • Is there enough information given to find the value of X. Explain your reasoning. Ty!
    12·1 answer
  • Any suggestions or answers
    12·1 answer
  • Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is the following.
    10·1 answer
  • How do you write sum 81w+48 a product of two factors
    10·1 answer
  • A cube has a volume 7^3 of cubic centimeters. What is its surface area?
    6·1 answer
  • Please helppppppp!!!!
    11·2 answers
  • Activity #2
    14·2 answers
  • A large data sample of heights of US women is normally distributed with a mean height of inches and a standard deviation of inch
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!