All categories

3 years ago

Please help will give brainliest

Mathematics

1 answer:

mestny [16]3 years ago

3 0

The area of triangle DEF is 2137.5 cm²

Solution:

Given data:

Area of ABC = 38 cm²

Scale factor = 7.5

To find the area of DEF:

Area of dilated image = Area of original image × (scale factor)²

Area of DEF = 38 × (7.5)²

= 2137.5 cm²

Area of DEF = 2137.5 cm²

The area of triangle DEF is 2137.5 cm²

You might be interested in

The equation P=6s represents the perimeter P of a regular hexagon with side length s. What is the

Margarita [4]

Answer:

The perimeter is 12mm

Step-by-step explanation:

Plug 2 for s in P=6s so 6*2=12

7 0

3 years ago

I will give brainliest pls help

ahrayia [7]

Answer:

$Slope= -1$

Step-by-step explanation:

Step 1: Find the slope

$Slope\ Formula: \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Plug in the numbers and solve.

$Slope= \frac{-6-(-5)}{6-5}$

$Slope= \frac{-1}{1}$

$Slope= -1$

Answer: $Slope= -1$

3 0

3 years ago

Solve 3[-x + (2 x + 1)2 = x - 1 X=?

Anna007 [38]

Answer:

x=−7/8

Step-by-step explanation:

3 0

3 years ago

Use addition to solve the linear system of equations. Include all of your work in your final answer. $\left\{ \right.$ 3x-y=6

ad-work [718]

Answer:

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

Step-by-step explanation:

We need to solve the linear system of equations.

$3x-y=6 \\y=x-4$

We can write second equation y=x-4 as: $-x+y=-4$

Let:

$3x-y=6--eq(1)\\ -x+y=-4--eq(2)$

Now, Adding equation 1 and 2

$3x-y=6\\ -x+y=-4\\--------\\2x+0y=2\\2x=2\\x=\frac{2}{2}\\x=1$

So, we get x = 1

Now, put value of x in second equation to find value of y:

$y=x-4\\Put\:x=1\\y=1-4\\y=-3$

So, we get y = -3

Solving the given linear system, we get x = 1 and y = -3.

The solution set is: (1,-3)

4 0

4 years ago

What is 999+999+999+23456

ohaa [14]

Your answer is 26,453

Although I don't feel as if this is a homework question, I will still show the work.

Work:

Step 1: 999 + 999 = 1,998

Step 2: 1,998 + 999 = 2,997

Step 3: 2,997 + 23,456 = 26,453

Hope I was able to help! :)

6 0

4 years ago

Read 2 more answers