12x + 20 = 4(3x + 5)
gcf = 4
Step-by-step explanation:
3c³ - 7d
= 3(-4)³ - 7(6)
= 3(-64) - 42
= -234.
Answer:
I'm pretty sure just 1
Step-by-step explanation:
Angles ∠ACD and ∠CAB are congruent because they are alternate angles. Then the area of the triangle AOB will be 22.53 square cm.
<h3>What is the
area of the right-angle triangle?</h3>
The area of the right-angle triangle is given as
A = 1/2 x B x H
Where B is the base and H is the height of the right triangle.
We know that angles ∠ACD and ∠CAB are congruent because they are alternate angles.
α₁ = 40°
AO = OC = 7.8 cm
Then the area of the triangle will be
Area = 1/2 x 7.8 x 7.8 x tan40°
Area = 22.53 square cm
More about the area of the right-angle triangle link is given below.
brainly.com/question/16653962
#SPJ1
Answer:
I guess, that's an Associative Property
.