Answer:
x = 40
Step-by-step explanation:
3x + (x+20) = 180
Answer:
143 because if you subtract 49 and 28 you get 21 the you divide 21 and 1623
The missing figure is attached down
∠a and ∠e are corresponding angles ⇒ B
Step-by-step explanation:
In the attached figure
- AB is parallel to CD
- They are intersected by a transversal
∵ AB // CD and intersected by a transversal
∴ ∠a = ∠e ⇒ Corresponding angles
∴ ∠b = ∠f ⇒ Corresponding angles
∴ ∠c = ∠g ⇒ Corresponding angles
∴ ∠d = ∠h ⇒ Corresponding angles
∴ ∠c = ∠f ⇒ alternate interior
∴ ∠d = ∠e ⇒ alternate interior
∴ ∠a = ∠h ⇒ alternate exterior
∴ ∠b = ∠g ⇒ alternate exterior
∠a and ∠e are corresponding angles
Learn more:
You can learn more about the parallel lines in
#LearnwithBrainaly
Answer:
Step-by-step explanation:
hello :
x²-3x-10=0 means : (x-5)(x+2)=0
x-5=0 or x+2=0
conclusion two solutions : 5 and -2
Answer:
70 feet
Step-by-step explanation:
This problem can be answered by using proportions based on similar triangles.
Notice that a person and its shadow on the ground form a right angle (therefore they can be considered the two "legs" of a right angle triangle)
The same runs for the tree and its shadow.
Since the inclination of the rays of the sun are the same at the same time for both objects (the boy and the tree), their hypothenuses form the same angles with the ground and therefore belong to similar triangles.
We can create the following proportion to solve for the shadow of the tree (ST) using the information provided: the height of the boy (HB), the shadow of the boy (SB), and the height of the tree (HT)
