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
Andreyy89
3 years ago
8

PLEASEEEEE HELPPPP MEEEEEEE BRAINLIEST TO THE FIRST ANSWER AND 30 POINTS

Mathematics
1 answer:
icang [17]3 years ago
6 0

Answer:

CD ≠ EF

Step-by-step explanation:

Using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = C(- 2, 5) and (x₂, y₂ ) = D(- 1, 1)

CD = \sqrt{(-1+2)^2+(1-5)^2}

      = \sqrt{1^2+(-4)^2}

      = \sqrt{1+16} = \sqrt{17}

Repeat using (x₁, y₁ ) = E(- 4, - 3) and (x₂, y₂ ) = F(- 1, - 1)

EF = \sqrt{(- 1+4)^2+(-1+3)^2}

     = \sqrt{3^2+2^2}

     = \sqrt{9+4} = \sqrt{13}

Since \sqrt{17} ≈ \sqrt{13} , then CD and EF are not congruent

     

You might be interested in
Evaluate A2 for A = -3. -9 -6 6 9
schepotkina [342]
Evaluate A² for A = -3.

(-3)² = (-3) * (-3) = 9

Your answer is 9.

If the question is, however, evaluate A2, which is 2A, for A = -3, then the answer is:

2A = 2(-3) = -6.
5 0
3 years ago
Read 2 more answers
A quadratic function and an exponential function are graphed below. How do the decay rates of the functions compareover the inte
Kobotan [32]

To check the decay rate, we need to check the variation in y-axis.

Since our interval is

-2We need to evaluate both function at those limits.At x = -2, we have a value of 4 for both of them, at x = 0 we have 1 for the exponential function and 0 to the quadratic function. Let's call the exponential f(x), and the quadratic g(x).[tex]\begin{gathered} f(-2)=g(-2)=4 \\ f(0)=1 \\ g(0)=0 \end{gathered}

To compare the decay rates we need to check the variation on the y-axis of both functions.

\begin{gathered} \Delta y_1=f(-2)-f(0)=4-1=3 \\ \Delta y_2=g(-2)-g(0)=4-0=4 \end{gathered}

Now, we calculate their ratio to find how they compare:

\frac{\Delta y_1}{\Delta y_2}=\frac{3}{4}

This tell us that the exponential function decays at three-fourths the rate of the quadratic function.

And this is the fourth option.

4 0
1 year ago
64978256+8734965+709685+1<br><br> Who ever answers correctly first gets Brainliest!!!!
anyanavicka [17]

Answer:

64978256+8734965+709685+1 = 74,422,907

5 0
3 years ago
Solve: 3x - 1 = 8(x + 1) + 1
amm1812

Answer:

x=-2

Step-by-step explanation:

3x-1=8x+8+1

3x-1 = 8x+9

3x-1+1=8x+9+1

3x= 8x+10

3x-8x=8x+10-8x

-5x=10

-5x ÷-5

10 ÷-5

x=-2

6 0
3 years ago
Like charges repel and I like charges attract Coulomb’s law states that the force F of attraction or repulsion between two charg
olga_2 [115]

Step-by-step explanation:

For the charges that have same sign of charges will repel each other while for the charges that have different charges will attract each other. So, we can say that like charges repel and unlike charges attract each other.

The Coulomb's law of attraction of repulsion states that force between charges is directly proportion to the product of charges and inversely proportional to the square of distance between them. Mathematically, it is given by :

F=\dfrac{kq_1q_2}{r^2}

Hence, all the given statements are true.

8 0
3 years ago
Other questions:
  • At a sporting event, the price for 3 cheeseburgers and 2 cups of lemonade is $14 and the price for 2 cheeseburgers and 4 cups of
    7·2 answers
  • The speed of a boat in still water is 50km/h. It takes the same time for the boat to
    7·1 answer
  • -3(x-4)=21<br><br> i know i’m asking a lot of questions but i CANT fail this math test
    15·2 answers
  • Find the y-intercept of the following equation. Simplify your answer.<br><br> y=9x+7/6
    5·2 answers
  • Plz help will be marked BRAINLIEST!!<br> Thanks man!
    9·2 answers
  • A cab company charges a $3.00 flat fee and $0.55 for each additional mile. James has
    8·2 answers
  • I need help with unscrambling letters for the answers I got b a l q u o p o f I don't need the answers already I just need help
    12·1 answer
  • Mr. Smith wants to build a rectangular gate with a diagonal as support. If the width and height are 4 ft and 3 ft respectively,
    11·1 answer
  • Distributive Property to find (z-5)(z+3)
    12·1 answer
  • -If the circumference of a circle is 20T<br> units, what is its area?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!