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4 years ago

9

Jamie is X years old. His friend Ana is the same age. Enter an expression in the box to represent the sum of Jamie and ana's age

s.

1 answer:

Lerok [7]4 years ago

4 0

Answer:

2x

Step-by-step explanation:

Since Jamie and Ana have the same age, they are both x years old. So x+x=2x.

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<img src="https://tex.z-dn.net/?f=%2814%20-%203i%29%20-%20%2820%20%2B%202i%29" id="TexFormula1" title="(14 - 3i) - (20 + 2i)" al

alukav5142 [94]

Answer:

-16-5i

Step-by-step explanation:

add real number together and imaginary numbers together

also, distribute the negative for the second parentesis

(14 -3i)-(20+2i)

distribute negative

14-3i-20-2i

add real and imaginary numbers

-16-5i

4 0

3 years ago

What is the slope of the linear function of (6 , 2) (9 , 8)

Ivanshal [37]

Answer:

1/2

Step-by-step explanation:

The formula for slope is $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

9-6=3

8-2=6

3/6=1/2

6 0

3 years ago

The coordinates of the endpoints of AB and CD are A(2,

Ratling [72]

Answer:

Option 1: CD is a perpendicular bisector of AB

Step-by-step explanation:

Let us find out the slopes of various line segments and the Distances and then we will draw the conclusions accordingly.

Formula to find slope

$m= \frac{y_2-y_1}{x_2-x_1}$

Formula to Find Distance between two points

$D=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

mAB ( represents , Slope of AB )

1. $mAC= \frac{3-2}{2-5}=\frac{1}{-3}=-\frac{1}{3}$

2. $mBC=\frac{2-1}{5-8}=\frac{1}{-3}=-\frac{1}{3}$

3. $mCD=\frac{5-2}{6-5}=\frac{3}{1}=3$

4. $AC=\sqrt{(3-2)^2+(2-5)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

5. $BC=\sqrt{(2-1)^2+(5-8)^2} =\sqrt{(1)^2+(-3)^2}=\sqrt{1+9}=\sqrt{10}$

mAC = mBC , and C is common point , hence these three are collinear points making a straight line whole slope is $-\frac{1}{3}$

$mAB=-\frac{1}{3}$

$mCD=3$

$mAB \times mCD = -\frac{1}{3} \times 3 = -1$

Hence CD ⊥ AB

Also

From Point 4 and point 5 above , we see that

AC = CB

Hence CD bisect AB at C, also CD ⊥ AB

There fore

CD is a perpendicular bisector of AB

Therefor option 1 is true

4 0

3 years ago

Select the employee who earns the most per hour.

Viktor [21]

Answer:

Giorgio

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Y = 4x − 6<br> y = x + 3

WARRIOR [948]

Answer:

\mathrm{Isolate}\:y\:\mathrm{for}\:4x-6y=x+3:\quad y=-\frac{-x+1}{2}

Step-by-step explanation:

7 0

4 years ago