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
nlexa [21]
2 years ago
12

Two vertices of a rectangle are (-10,-7) and (-10,18) what is the length of this side of the rectangle

Mathematics
1 answer:
Crank2 years ago
7 0
The side length would be 25.
You might be interested in
Is this a function. ?
lisabon 2012 [21]

Answer:

Yes

Step-by-step explanation:

A function is a relation where each input has only one output

The table shown follows this, each input has only one output, therefore it is a function.

8 0
2 years ago
Read 2 more answers
NEED HELP ASAP!!!
azamat
The answer is B f(x)= -3(x+1)^2+2
6 0
3 years ago
At the AoPS office, mice vary inversely with cats, that is, $\text{mice}=\frac{k}{\text{cats}}$, for some value of $k$. When the
lesya692 [45]

Answer:

540

Step-by-step explanation:

im terrible at explaining so-

5 0
2 years ago
An instructor in a college class recently gave an exam that was worth a total of 100 points. The instructor inadvertently made t
solniwko [45]

Answer:

B) Method 2 will increase the standard deviation of the students' scores.

Step-by-step explanation:

Given that an instructor in a college class recently gave an exam that was worth a total of 100 points.

The average score for his students was 43 and the standard deviation of the scores was 5 points.

And now he is considering two different strategies for rescaling the exam results of which:

Method 1 = Add 17 points to everyone's score.

Method 2 = Multiply everyone's score by 1.7 .

And we have to check what will be the impact of these methods on the standard deviation of the students' scores.

For this let us consider a simple example to understand this:

Firstly, Formula for calculating Standard Deviation =  \sqrt{\frac{\sum (X-Xbar)^{2}}{n-1}}

Suppose,

     X             X - Xbar       (X - Xbar)^{2}

     3              3 - 6 = -3         -3 * -3 = 9

     5              5 - 6 = -1          -1 * -1 = 1

     10            10 - 6 = 4          4 * 4 = 16

<em>Mean of above data, Xbar</em> = \frac{3+ 5+10}{3} = 6

<em>Standard Deviation of data </em>= \sqrt{\frac{26}{3-1} } = 3.6055

Now let us suppose that we multiply each value of above data with 2 so the new data will be:

     X                X - Xbar           (X - Xbar)^{2}

 3*2 = 6        6 - 12 = -6         -6 * -6 = 36

 5*2 = 10       10 - 12 = -2       -2 * -2 = 4

10*2 =20      20 - 12 = 8         8 * 8 = 64

<em>Mean of new data, Xbar </em>= \frac{6+ 10+20}{3} = 12

<em>Standard Deviation of new data</em> = \sqrt{\frac{104}{3-1} } = 7.2111

<em>Hence, we see that when we multiply any value to the data the standard deviation will increase and in other words it will multiplied by that value which value we multiplied with each data value i.e. when we multiply each data value with 2 the standard deviation also get multiplied by as </em>

  3.6055 * 2 = 7.2111

Therefore option B is correct that Method 2 will increase the standard deviation of the students' scores.

<em>And on the other hand Similarly by adding any constant to the data the Standard Deviation will remain same. Therefore Method 1 will have no impact on standard deviation of the students' scores.</em>

8 0
3 years ago
What is 5c-4c+c-3c and 3a+6+5a-2 and 8b+8-4b-3?
ELEN [110]

Answer: -c

8a+4

4b+5

Step-by-step explanation:

5c-4c+c-3c

c+c-3c

2c-3c

-c

3a+6+5a-2

8a+4

8b+8-4b-3

4b+5

6 0
3 years ago
Other questions:
  • Verify the identity. <br><br> tan(x+(pi/2)) = -cot x
    7·1 answer
  • Find the distance between P1(4,16degrees) and P2(-2,177degrees) on the polar plane.
    15·1 answer
  • Which expression is equivalent to (3x^2-7)?
    15·2 answers
  • Use a decimal number to describe the shaded amount<br><br> 5 out of 10
    7·2 answers
  • What is the y-intercept of the table below?
    14·1 answer
  • What is the answer to this???
    15·2 answers
  • Use substitution to solve the system of equations.<br> x-2y=1<br> 3x-6y=3
    10·1 answer
  • A system of equations is shown.
    15·1 answer
  • 40 Points!!! Please do the questions in attached image!
    12·1 answer
  • PLS HELP ME Solve the following equation: five eighths plus two eighths equals
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!