1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadezda [96]
3 years ago
10

Math Help please 15 points

Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0
1) You have vertical angles here. This means the big and small triangles are similar, meaning the ratio of corresponding sides of the two triangles are equal.

In this case, 32cm corresponds to 4cm and 40cm corresponds to x. To find x, set up the ratio as follows: 4/32 = x/40.

4/32 can be reduce to 1/8. Multiply each side by 40 to isolate x. you get 1/8 * 40

This yields x = 5 cm

2) set up a proportion, similar to the first question.

(x + 4)/8 = (2x + 1)/12
12(x + 4) = 8(2x + 1)
12x + 48 = 16x + 8
40 = 4x
x = 10

the length of BC is (x + 4) + (2x + 1) = 3x + 5

this means BC = 35
You might be interested in
Triangle PQR is transformed to triangle P′Q′R′. Triangle PQR has vertices P(8, 0), Q(6, 2), and R(−2, −4). Triangle P′Q′R′ has v
pav-90 [236]

lo siento de antemano! Necesito los puntos para hacer una publicación sobre mi amigo desaparecido. Ella desapareció y no puedo encontrarla. Ella se ha ido desde Halloween gracias por su comprensión. 8 9 028 los números son para covienes que estoy cosiendo el quistoion. Lo siento, nuevamente.

3 0
2 years ago
HELP ME I NEED HELP LIKE RIGHT NOW OH GOSH
nataly862011 [7]

Answer:

Step-by-step explanation:

is this in a test

7 0
2 years ago
What is the length of the hypotenuse, x, if (20,21,x) is a Pythagorean triple?
Sophie [7]

Answer:

<h2>29</h2>

Step-by-step explanation:

(20,21,x) \\Pythagoras -Theorem =\\a^2+b^2 = c^2\\\\20^2 + 21^2 = x^2\\400 + 441 = x^2\\841 = x^2\\Square -root-both-sides\\\sqrt{841} = \sqrt{x^2} \\29 = x\\\\x = 29

6 0
3 years ago
Read 2 more answers
What is the area of the kitchen floor in this floor plan?
slava [35]
First you would figure out the dimensions, which are 7 ft by 5 ft. Then, multiply those together, which equals 35 sq ft. The answer to your question is C - 35 sq ft. Hope this helps!
8 0
2 years ago
Read 2 more answers
Plz help I’m bad at math
Gwar [14]

Answer:

Branliest appreciated

3. x = 14 degrees

4. x = 17.5 degrees

Step-by-step explanation:

SO, The first question:

6x - 21 = 105

6x = 105 -21

6x = 84

x = 14

SO, The second question:

55 + 85 = 8x

140 = 8x

17.5 = x

3 0
3 years ago
Other questions:
  • If the diameter of the circle is 11 inches, then the radius will be _____ inches.
    12·1 answer
  • PLS HURRY!!!! Ebony waited more than 56 minutes in the doctor’s office. Which set of steps shows how to write an inequality that
    8·2 answers
  • Pat listed all the numbers have 15 as a multiple. write the numbers in pat's list
    14·1 answer
  • A manufacturer of metal fasteners expects to ship an average of 1197.00 boxes of fasteners per day. A random sample of 24 days p
    5·1 answer
  • 12. Algebra There are 92 students in the third and fourth grades at Johnsonville Elementary. Of these, 47 are in fourth grade. W
    10·2 answers
  • WILL GIVE BRAINLIEST! EASY! Give detailed answer
    6·1 answer
  • What is 21/9 in simplest form
    13·1 answer
  • Choose Yes or No to tell whether each number is rational.
    7·1 answer
  • Solve the Inequality <br>8p&lt;-3​
    5·1 answer
  • Expand and simplify 2(3x - 4) - 2(x - 5)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!