All categories

2 years ago

The two triangles are similar. Find the unknown variables.

Mathematics

1 answer:

iogann1982 [59]2 years ago

7 0

Answer:

i thought it is 18 since 4 x3 =12 then 6x3 =18 I am not sure 100%

You might be interested in

4x-2<br> x=5<br>can someone help me with this?

kondaur [170]

Answer:

x= 5/2

Step-by-step explanation:

3 0

2 years ago

A window in the shape of a rectangle as shown below has a width of x+5 and a length of x^2- 3x+7 express the area of the rectang

Ksju [112]

Answer:

$x^3+x^2-5x+28$

Step-by-step explanation:

since a=lw, the area is (x^2-3x+7)(x+4)

1. distribute parentheses $\left(x^2-3x+7\right)\left(x+4\right)=x^2x+x^2\cdot \:4+\left(-3x\right)x+\left(-3x\right)\cdot \:4+7x+7\cdot \:4$

2. apply +(-a)=-a rule $x^2x+4x^2-3xx-3\cdot \:4x+7x+7\cdot \:4$

3. Simplify

Steps to simplify:

$x^2x=x^3$

$3xx=3x^2$

$3\cdot \:4x=12x$

$7\cdot \:4=28$

$x^3+4x^2-3x^2-12x+7x+28$

4. Add like terms $=x^3+4x^2-3x^2-5x+28$

5. Add like terms $=x^3+x^2-5x+28$

6 0

2 years ago

What is the property of the equation 3x+5 - 5 = 20-5

Shalnov [3]

Answer:

x=5

Step-by-step explanation:

We simplify the equation to the form, which is simple to understand

3x+5-5=20-5

We move all terms containing x to the left and all other terms to the right.

+3x=+20-5-5+5

We simplify left and right side of the equation.

+3x=+15

We divide both sides of the equation by 3 to get x.

x=5

6 0

2 years ago

It is said that dogs age seven years for every people year.Masons dog,sheep,was born on masons eighth birthday.When mason was ni

Lady_Fox [76]

Answer:

Step-by-step explanation:

so, if mason is 9 and the sheep is 7 year old in dog years

we have to do 7*4 ,because 9,10,11,12=4 that's why u multiply it by 4,and 7 because thats how many years dogs ages for every person that turns a year age

3 0

2 years ago

Graph: y-3=1/2 (x+2)

777dan777 [17]

Answer:

See below

Step-by-step explanation:

y-3=1/2(x+2) Indicates a graph with slope 1/2 that runs through the point (-2,3). I have graphed it below. Hope this helps!

6 0

2 years ago