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elixir [45]
3 years ago
7

PLEASE HELP ME ASAP! Is my answer correct?

Mathematics
1 answer:
Alinara [238K]3 years ago
5 0
I think so if its not im srry
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Can somebody just give me the answer plz and if you know how to do geometry drop your insta along with the answer pleaseee
SSSSS [86.1K]

Answer:

x = 40

Step-by-step explanation:

3x + (x+20) = 180

8 0
3 years ago
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An insulator is installing fiberglass insulation in exterior walls that total up to​ 1,623 square feet after windows and doors a
ahrayia [7]

Answer:

143 because if you subtract 49 and 28 you get 21 the you divide 21 and 1623

6 0
3 years ago
∠a and ∠e are ______ angles.
ankoles [38]

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

7 0
3 years ago
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Solve the equation x^2-3x-10=0 by factoring
Molodets [167]

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

6 0
3 years ago
If a boy 5 feet tall casts a shadow 14 feet long, what will be the length of the shadow of a tree that is 25 feet high?
klemol [59]

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)

\frac{SB}{HB} =\frac{ST}{HT}\\\frac{14}{5} =\frac{ST}{25}\\\frac{ST}{25}=\frac{14}{5} \\ST=\frac{14*25}{5}\\ST=70\,\,ft

6 0
4 years ago
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