I NEED HELP ASAP PLEASE!!!!!!!

Find the coordinates of the missing endpoint if B is the midpoint of AC. C(-5,4), B(-2,5) I need the steps and answer pls and ty

mylen [45]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
A&({{ x}}\quad ,&{{ y}})\quad 
% (c,d)
C&({{ -5}}\quad ,&{{ 4}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-5+x}{2}~,~\cfrac{4+y}{2} \right)=\stackrel{B}{(-2,5)}\implies 
\begin{cases}
\cfrac{-5+x}{2}=-2\\\\
-5+x=-4\\
\boxed{x=1}\\
----------\\
\cfrac{4+y}{2}=5\\\\
4+y=10\\
\boxed{y=6}
\end{cases}$

3 0

3 years ago

For which shape is 180 degrees the smallest angle of rotational symmetry?

Anit [1.1K]

Answer:

La simetría rotacional, es la propiedad que posee una forma cuando tiene el mismo aspecto después de aplicarle una rotación mediante un giro parcial. El grado de simetría rotacional de un objeto es el número de orientaciones distintas en las que se ve igual que en su posición inicial.1

Step-by-step explanation:

5 0

3 years ago

A company decides to do a survey of overall employee happiness at each of its plants by choosing 100 employees to take the surve

Lilit [14]

Answer:

d

Step-by-step explanation:

4 0

3 years ago

Evaluate C(3, 3) 1 6 24

Anestetic [448]

Answer:

1

Step-by-step explanation:

Using the definition

n $C_{r}$ = $\frac{n!}{r!(n-r)!}$

where n! = n(n - 1)(n - 2) × 3 × 2 × 1

and 0! = 1

3 $C_{3}$

= $\frac{3!}{3!(3 - 3)!}$

= $\frac{3!}{3!(0!)}$

= $\frac{3!}{3!}$ = 1

4 0

3 years ago

Find an angle between 0 and 2pi that is coterminal with the following angle. 32pi/9

never [62]

To do these you will be adding or subtracting 2pi (or integer multiples of .

Since the given angles are in fraction form, it will help to have 2pi in fraction form, 2pi=10/5=6pi/3=4pi/2=18pi/9 NOTE: this>(/) stands for over like 1 over 2 EX. 1/2

too, so the addition/subtraction is easier.

Hint: When deciding if you have a number between 0 and 2pi, compare it to the fraction version of 2pi that you've been adding/subtracting.

For 17pi/5...
First we can see that 17pi/5 is more than 10pi/5 (aka 2pi). So we need to start subtracting: 17pi/5 - 10pi/5 = 7pi/5

Now we have a number between 0 and 10pi/5. So 7pi/5 is the co-terminal angle between 0 and 2pi.

I'll leave the others for you to do. Just remember that you might have to add or subtract multiple times before you get a number between 0 and 2pi.
P.S don't add or subtract at all if the number starts out between 0 and 2pi.

5 0

3 years ago