To calculate the area of a rectangle you multiply the length of the the sides, on 38) the sides are 4 and (3x-2) so to find the area do 4 x (3x-2) = 12x-8
To find the area of a right angled triangle you multiply the two sides and then divide by two, so for 39) and 40) follow this method but divide by two after as they’re triangles to find the area for these
Answer:
420000 here is the answer
Step-by-step explanation:
28000 multipli 15
Answer:
sharon
Step-by-step explanation:
Answer:
23
Step-by-step explanation:
By definition of dot-product
sum the corresponding products.
u * v = <9, 4> *<3, -1> = 9*3 + 4*(-1) = 27 -4 = 23
Given the triangles ABC and EDC
We will find the transformation that makes the triangles are similar
As shown: the triangles are reflected over the y-axis
the rule of the reflection over the y-axis will be as follows:
And as shown, the length of the side AB = 3 units
And the length of the side ED = 1 units
So,
So, the answer will be:
D) (x,y) ⇒ (-x, y)
E) (x,y) ⇒ (1/3 x, 1/3 y)
