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
Stolb23 [73]
3 years ago
14

Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. who skates futher in 1 hour

Mathematics
2 answers:
Tamiku [17]3 years ago
6 0
Elizabeth because in about 13 minutes she skates 2/3 mile an hour which is over half a mile and in about 12 minutes Alice skates 2/5 which is less than half a mile and it’s a minute away. It’s Elizabeth
poizon [28]3 years ago
5 0
Alice is skating faster because she may take a larger number of a reduced hour but she covers 2/3 of a mile when skating.
You might be interested in
Which is a true statement?
Thepotemich [5.8K]

Answer:

C.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Quadrilateral ABCD has vertices A(-3, 4), B(1, 3), C(3, 6), and D(1, 6). Match each set of vertices of quadrilateral EFGH with t
kykrilka [37]

Answer:

1) E(-3, -4), F(1, -3), G(3, -6), and H(1, -6)   a reflection across the x-axis

2) E(-3, -1), F(1, -2), G(3, 1), and H(1, 1)       a translation 5 units down

3) E(3, 4), F(-1, 3), G(-3, 6), and H(-1, 6)    a reflection across the y-axis

4) E(4, 4), F(8, 3), G(10, 6), and H(8, 6)    a translation 7 units right

Step-by-step explanation:

Quadrilateral ABCD has vertices A(-3, 4), B(1, 3), C(3, 6), and D(1, 6).

1) E(-3, -4), F(1, -3), G(3, -6), and H(1, -6)

   A(-3, 4), B(1, 3), C(3, 6), and D(1, 6)

In this case the vertices has the same abscissas, and the ordinates have opposite sign, then the transformation is a reflection across the x-axis.


2) E(-3, -1), F(1, -2), G(3, 1), and H(1, 1)

   A(-3, 4), B(1, 3), C(3, 6), and D(1, 6)

In this case the vertices has the same abscissas, and the ordinates of EFGH have 5 units less, then the transformation is a translation 5 units down.


3) E(3, 4), F(-1, 3), G(-3, 6), and H(-1, 6)

   A(-3, 4), B(1, 3), C(3, 6), and D(1, 6)

In this case the vertices has the same ordinates, and the abcissas have opposite sign, then the transformation is a reflection across the y-axis.


4) E(4, 4), F(8, 3), G(10, 6), and H(8, 6)

   A(-3, 4), B(1, 3), C(3, 6), and D(1, 6)

In this case the vertices has the same ordinates, and the abscissas of EFGH have 7 units more, then the transformation is a translation 7 units right.

7 0
4 years ago
Solid of Revolution Consider the following integral, which calculates the volume of a cylinder by considering it as a solid of r
svetoff [14.1K]

Answer:

Step-by-step explanation:

In this case the solution of the integral is

\int\limits^{2\pi} _0 {} \, d\phi \int\limits^R_0 {\rho}h \, d\rho = [2\pi - 0](\frac{1}{2} )[R^{2} - 0]h = \pi R^{2}h

because h is a constant, and where the expression

\int {\rho} \, d\rho = \frac{\rho^{2}}{2}

was used.

I hope this is usefull for you

regards.

4 0
4 years ago
The table shows the linear relationship between the average height in feet of trees on a tree farm and the number of years till
siniylev [52]

Step-by-step explanation:

the equation :

Hn = 7n + 3

where :

Hn : the height of trees at year to-n

n : year to-n (n = 1,2,3,...)

so, the rate of change : increasing 7 feet per year.

8 0
3 years ago
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 7.8 years, and standard deviation of
den301095 [7]

The probability of 6 years or more, so we want the complement,

1 - 0.98533 = 0.01467                        1.467% chance, not very likely.

<h3>What is Z-score?</h3>

A z score is a type of statistical measurement that gives an idea of how far a raw score is from the mean of a distribution. A z score is used in a z test for hypothesis testing.

Here, Because you are looking for the mean of a group of 7.8, the standard deviation will shrink by a factor of √6

Old standard deviation = 0.7,

new standard deviation = 0.7/√6 = 0.64254

You need to find a z-score and then convert your z-score to a probability.

z-score = (your score - average)/ std dev

z-score = (7.8 - 6)/0.64254

z-score = 2.1789

To convert a z-score either look it up on a table or use a calculator.

But z-tables are designed to shade to the left, which means this is the probability that the mean life is 6 years or less. We want the probability of 6 years or more, so we want the complement, 1 - 0.98533 = 0.01467

1.467% chance, not very likely.

Learn more about Z-score from:

brainly.com/question/15016913

#SPJ1

3 0
3 years ago
Other questions:
  • it takes Elizabeth 15 minutes to walk 5 blocks. at that rate, how many minutes will it take her to walk 30 blocks?
    6·2 answers
  • Professor Melendez has 10 students in her college
    7·1 answer
  • Sally has already read 200 pages of her book. She plans to read 10 pages each day until she finishes. Write an equation of pages
    7·1 answer
  • Four and nineteen hundreths in decimal form?
    5·2 answers
  • Is the high temperature a function of the day?
    8·1 answer
  • ANSWER QUICK. I NEED ANSWER IN 5 MINUTES.​
    12·1 answer
  • Distribute and combine like terms: 5(x + 3) + 3x
    15·2 answers
  • I. 2a + 2b - c + d = -5
    11·1 answer
  • What is 10+6<br><br> Does anyone know i am really stuck and I need help
    14·1 answer
  • LOCKS SOON WILL GIVE BRAINLEST! 50 POINTS!!! For triangle xyz , the measures of angles x,y, and Z are known. Which method should
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!