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
tensa zangetsu [6.8K]
3 years ago
10

Is this correct ? .......................

Mathematics
1 answer:
ladessa [460]3 years ago
5 0
To find the midpoint of the two points (x₁ ,y₁) and (x₂, y₂) we need to use the formula:

\sf{Midpoint=(\frac{x_1 + x_2}{2}, \frac{y_1+y_2}{2})}

So to find the midpoint of E (a,a) and F (3a, a), let's plug it in to the formula:

\sf{Midpoint=(\frac{a + 3a}{2}, \frac{a+a}{2})}

Simplify the numerator:

\sf{Midpoint=(\frac{4a}{2}, \frac{2a}{2})}

Simplifying the fractions more:

\sf{Midpoint=(2a, a)}


So the midpoint of EF is (2a,a).

Your answer of (a,a) would be wrong.
You might be interested in
Find x. Round to the nearest tenth if necessary. Assume that segments that appear to be tangent are tangent.
Cloud [144]

Answer:

x = 4

Step-by-step explanation:

The formula for this, filled in with our specifics, is

x^2=2(2+6) which simplifies to

x^2=16 so

x = 4

4 0
4 years ago
The data in the table shows the population P(x) of a particular species at time x. Determine a linear model and predict the popu
mrs_skeptik [129]

The regression equation that shows the population P(x) is given as follows:

P(x) = 3.02x + 7.81.

With the model, the prediction for the population in year 88 is of 273.

<h3>How to find the equation of linear regression using a calculator?</h3>

To find the equation, we need to insert the points (x,y) in the calculator.

For this problem, the points are given as follows:

(0,7), (5,17), (23,84), (31, 107), (45, 143), (60, 182), (68, 217), (79, 249).

Inserting these points in the calculator, the equation is given by:

P(x) = 3.02x + 7.81.

The prediction for the population in year 88 is given by:

P(88) = 3.02(88) + 7.81 = 273.

More can be learned about line of best fit at brainly.com/question/24808124

#SPJ1

6 0
2 years ago
The regression equation, y = 8.5x + 30, is obtained after performing a regression analysis, where x represents the number of hou
dusya [7]

Answer: It is usefull.

Step-by-step explanation:

The regression squared talks to us about how well the model fits in the experimental data, where 0.0 means that the model does not fit at all, and 100% means that the model fits perfectly.

This is always true? well, really not, there are cases where you can have a regression square of 0.98, which would imply that the model is correct, but when you see the residual vs fit the plot, you may see some pattern, which implies that there is a problem with the model (you always expect to see randomness when you look at this graph). While for a prediction, this actually may work (at least in the range of the data points, outside this range the model and the data may not coincide at all)

Now, it still is useful in a certain range, so we can actually conclude that if R^2 = 0.949 represents a model that is useful for predicting the exam marks.

3 0
3 years ago
when you went to bed the temperature was -5.5 it fell 3.4 degrees overnight what is the temperature now
marin [14]

Answer:

-2.1

Step-by-step explanation:

3.4 minus -5.5

6 0
3 years ago
A pair of basketball shoes was originally priced at 80. It was marked up by 37.5% what was the retail price of the shoes
OlgaM077 [116]

Answer:

67

Step-by-step explanation:

4 0
4 years ago
Other questions:
  • Dana has to pay 25% tax on any income above £24,000 per year. Dana is paid £36,000 annually. Calculate the amount of money she r
    8·1 answer
  • At a factory that produces pistons for cars, Machine 1 produced satisfactory pistons and unsatisfactory pistons today. Machine 2
    11·1 answer
  • in a club of 35 boys and 28 girls,80% of the boys and 25% of the girls have been member for more than 2 years.if n percent of th
    12·1 answer
  • Can some one help explain this
    10·2 answers
  • A 10 miles per hour<br> b 15 miles per hour<br> c 30 miles per hour <br> d 65 miles per hour
    10·1 answer
  • HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!
    5·1 answer
  • Find the volume of a cylinder with a diameter of 10 inches and a height that is three times the radius. Use 3.14 for pi and roun
    7·1 answer
  • Find the value of x in the isosceles triangle shown below
    12·2 answers
  • Find the midpoints (9,8) (8,-6)
    10·1 answer
  • How do I solve 0.0055 m a cm ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!