All categories

3 years ago

A (1, 1)

Mathematics

2 answers:

Savatey [412]3 years ago

8 0

Answer:

D(4, 1)

Step-by-step explanation:

The two diagonals have the same midpoint, so ...

(A+C)/2 = (B+D)/2

A+C = B+D . . . . multiply by 2

A+C-B = D . . . . . subtract B

D = (1, 1) + (5, 3) - (2, 3) = (1+5-2, 1+3-3)

D = (4, 1)

Andrews [41]3 years ago

4 0

Answer:

D(4 ; 1)

Step-by-step explanation:

vector(AB)=(2-1 ; 3-1) = (1 ; 2)

vector(DC)=(5-x ; 3-y) and D(x ; y )

ABCD parallelogram :vector(AB)=vector(DC)

you have the system : 5-x =1

3-y =2

so : x=4 and y=1

D(4 ; 1)

You might be interested in

69 points!!!

Amiraneli [1.4K]

Answer:

C) The solution for the given system of equations are A(0,-5) and B(-4,3)

Step-by-step explanation:

The given system of equation are : $x^{2} + y^{2} = 25\\2x + y = -5$

from equation 2, we get y = -5 - 2x .

Put the above value of y in the equation (1).

We get: $x^{2} + y^{2} = 25 \implies x^{2} + (-5-2x)^{2} = 25$

By ALGEBRAIC IDENTITY:

$(a+b)^{2} = a^{2} + b^{2} + 2ab\\ (-5-2x)^{2} = (-5)^{2} + (-2x)^{2} + 2(-5)(-2x)$

or, $x^{2} + (-5-2x)^{2} = 25 \implies x^{2} + (25 + 4x^{2} + 20x) = 25$

or, $5x^{2} + 20x = 0 \implies x(5x + 20) = 0$

⇒ x = 0 or, x = -20/5 = -4

So, the possible values for x are: x = 0 or x = -4

If x = 0, y = -5-2x = -5-2(0) = -5

and if x = -4, y = -5 -2(-4) = -5 + 8 = 3

Hence, the solution for the given system of equations are A(0,-5) and B(-4,3)

8 0

3 years ago

I’m so confused on how to do it

Monica [59]

Answer:

785.4

Step-by-step explanation:

The formula to find the surface area of a cylinder is

2* pi* radius* height + 2* pi* 2radius.

2( 3.14) (5) (20)= 628

2 (3.14* 5*5)= 157

628+ 157= 785.

8 0

3 years ago

Plz, help. What is the mode?

Ronch [10]

Answer:

None

Step-by-step explanation:

Mode is the number that repeats the most. All of these numbers are unique, and there is no repeats, therefore there is no mode.

5 0

3 years ago

Read 2 more answers

Which of the following sets of ordered pairs is a functionB

ser-zykov [4K]

Answer:

i dont know

Step-by-step explanation:

4 0

3 years ago

For 23-25, use the table.

alexandr402 [8]

Jon and Gina are different we’re opposite

7 0

3 years ago

Read 2 more answers