Quadrilateral ABCD has coordinates A(3,5) B(5,2) C(8,4) D(6,7). quadrilateral ABCD is a?

Answers

Answer 1

Answer: Use the distance formula. The distance formula is:

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

If you input the values, you will get:

A to B= $√(13)$

B to C= $√(13)$

C to D= $√(13)$

D to A= $√(13)$

It is a square.

Hope that helped!

~Cam943, Moderator

Answer 2

Answer:

Answer:

it is a square use geogebra and you will see

Step-by-step explanation:

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What is the greatest common factor of 48 and 54

Solve 2cos^2x+3cosx-2=0

Answers

$\bf 2cos^2(x)+3cos(x)-2=0\impliedby \textit{so, notice is just a quadratic} \n\n\n\ [2cos(x)~~-~~1][cos(x)~~+~~2]=0\n\n -------------------------------\n\n 2cos(x)-1=0\implies 2cos(x)=1\implies cos(x)=\cfrac{1}{2} \n\n\n \measuredangle x=cos^(-1)\left( (1)/(2) \right)\implies \measuredangle x= \begin{cases} (\pi )/(3)\n\n (5\pi )/(3) \end{cases}\n\n -------------------------------\n\n cos(x)+2=0\implies cos(x)=-2$

now, for the second case, recall that the cosine is always a value between -1 and 1, so a -2 is just a way to say, such angle doesn't exist.

Chelsea is graphing the function f(x) = 20()x. She begins by plotting the initial value. Which graph represents her first step?ik is either c or d

Answers

we have the function

$f(x)=20((1)/(4))^(x)$

we know that

In the equation of the exponential function of the form

$f(x)=a(b)^(x)$

a is the initial value

b is the base

x is the exponent

The initial value is the value of the function when the value of x is equal to zero

in this problem

for $x=0$

$f(0)=20((1)/(4))^(0)$

$f(0)=20(1)=20$

the initial value is the point $(0,20)$

therefore

the answer in the attached figure

The answer you are looking for is C. Hope this helps!

Find the midpoint between the points (6, 2) and (9, 4)

Answers

Answer:

$(7(1)/(2) ,3)$

Step-by-step explanation:

to find midpoint of (x₁, y₁) & (x₂, y₂):

$x=(x_1+x_2)/(2)$

$y=(y_1+y_2)/(2)$

$x=(6+9)/(2)$

$=7(1)/(2)$

$y=(2+4)/(2)$

$=3$

coordinate of midpoint = $(7(1)/(2) ,3)$

Answer:

(15/2, 3) or (7.5, 3)

Step-by-step explanation:

To find the midpoint between two points, you can use the midpoint formula

midpoint = $\left((x_1 + x_2)/(2), (y_1 + y_2)/(2)\right)$

In this case, the two points are (6, 2) and (9, 4).

So, $$x_1 = 6$, $y_1 = 2$, $x_2 = 9$, and $y_2 = 4$.$

Now, plug these values into the formula:

$Midpoint = $\left((6 + 9)/(2), (2 + 4)/(2)\right)$Midpoint = $\left((15)/(2), (6)/(2)\right)$$

Then, simplify.

$Midpoint = $\left((15)/(2), 3\right)$$

So, the midpoint between the points (6, 2) and (9, 4) is $\left((15)/(2), 3\right)$ or (7.5,3)

(I am never using equation again!)

Parker earns $4 in rewards for every $75 he spends at the grocery store. If he earned $44 in rewards last month. how much did he spend at the store

Answers

he spent $825 at the store

Answer:

825$

Step-by-step explanation:

you divide 44 by 4 that gets you 11 then multiply 11 times 75

Is the product of square root of 8 and square root of 98 rational or irrational

Answers

Answer:i think its rational

Step-by-step explanation:

51% of the tickets sold at a school carnival were early-admission tickets. If the school sold 100 tickets in all, how many early-admission tickets did it sell?