a. They multiplied 10 by 4 creating 40 and 8 times 4 to make 32 so 10 × 4 and 8 × 4 B IS IN PICTURE
not sure what an area model is or how I make that up but you can get 15 from 45÷3

7 0

2 years ago

labwork [276]

Answer:

J(-2, -1), K(4, -5), L(0, -5)

The midpoint of segment JL is

(-2 + 0)/2, (-1 + (-5))/2) = (-2/2, -6/2) = (-1, -3)

The midpoint is

(-2 + 4)/2, (-1 + (-5))/2) = (2/2, -6/2) = (1, -3)

A: (-1, -3), (1, -3)

Step-by-step explanation:

5 0

2 years ago

dimaraw [331]

Answer:

The length of the rectangle is 51 meters and the width is 70 meters.

Step-by-step explanation:

Let us assume that the length of the rectangle is L and the width of the same rectangle is W.

it is given in the problem that, the width of the rectangle is 19 meters more than the length.

Hence, L+19 =W ......(1)

Again, the perimeter of the rectangle is given by 2(L+W), which is given to be 242 meters.

So, 2(L+W) =242, ⇒L+W =121 ..... (2)

Now, solving equations (1) and (2) by substitution method, we get,

L+(L+19) =121, ⇒2L =102, ⇒ L =51 meters.

Now, from equation (1), W=L+19 =70 meters.

Therefore, the length of the rectangle is 51 meters and the width is 70 meters. (Answer)

8 0

2 years ago

serious [3.7K]

Answer:

1: 233 m

2: 466 m

3: 241.87 m

4: 483.72

Step-by-step explanation:

The Pythagorean Theorem states that a^2 + b^2 = c^2, in which c is the hypotenuse (in this case, PQ and RS).

1: 105^2 + 208^2 = 54289, square root of 54289 = 233

2: Since the area of the triangle makes up half of the rectangle, multiply the area by 2 to get 466

3: 120^2 + 210^2 = 58500, square root of 58500 is 241.87

4: Multiply by 2 to get 483.72

4 0

2 years ago

Make x the subject of the formula y=4x²-2​

Make x the subject of the formula y=4x²-2