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
-BARSIC- [3]
3 years ago
6

I need help with the bottom section b

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
4 0

Answer:

Interior Angle Theorem

x=5

measure of angles: 46, 46, 134

Step-by-step explanation:

Interior angle theorem

12x-14=5x+21

7x=35

x=5

12x-14=12(5)-14=46

5x+21=5(5)+21=46

20x+34=20(5)+34=134

You might be interested in
What additional information do you need to prove △ABC ≅ △DEF by the SSS Postulate?
Fudgin [204]
The answer to this question is answer choice C.

For the SSS postulate, we need 3 pairs of congruent sides. However, in the image, there are only 2 pairs. 

The missing pair in the image is AC and DF. If those are congruent, the triangle can be proven congruent by the SSS postulate.

Hope this helps! :)

~AgentCozmo4, Junior Moderator
7 0
3 years ago
Read 2 more answers
If v1 = (2,-5) and v2 = (4,-3), then the angle between the two vectors is _________. Round your answer to two decimal places.
siniylev [52]
The angle between two vectors is given by:
 cos (x) = (v1.v2) / (lv1l * lv2l)
 We have then:
 v1.v2 = (2, -5). (4, -3)
 v1.v2 = (2 * 4) + (-5 * (- 3))
 v1.v2 = 8 + 15
 v1.v2 = 23
 We look for the vector module:
 lv1l = root ((2) ^ 2 + (-5) ^ 2)
 lv1l = 5.385164807
 lv2l = root ((4) ^ 2 + (-3) ^ 2)
 lv2l = 5
 Substituting values:
 cos (x) = (23) / ((5.385164807) * (5))
 x = acos ((23) / ((5.385164807) * (5)))
 x = 31.33 degrees
 Answer:
 
The angle between the two vectors is:
 
x = 31.33 degrees
3 0
3 years ago
What is the geometric mean of 8 and 10?
nekit [7.7K]
If the smaller number is x, then the larger number has to be 20 - x in order for the arithmetic mean to be 10, as their sum must be 20.

If the geometric mean is 8 the product of the numbers has to be 64 and so the larger number is 64/x

Solving 64/x = 20 - x gives the quadratic x^2 -20x +64 = 0 so x = 4 or 16.

The two numbers are 4 and 16.
3 0
2 years ago
Read 2 more answers
The length of an arc of a circle is 6.28 units, and the measure of the corresponding central angle is 1.12 radians. What is the
lorasvet [3.4K]
Hello,

arc=\theta \ * R\\\\
R= \frac{6.28}{1.12} =5,607142857...≈5.61
6 0
3 years ago
Read 2 more answers
Subtract:
Shtirlitz [24]

Answer:

D

Step-by-step explanation:

(3x³ - 10x² + 13x)  -  (5x³ + 4x² - 9x)

3x³ - 10x² + 13x  - 5x³ - 4x² + 9x  Change all terms after the subtraction sign to

                                                      the opposite sign (definition of Subtraction)

(3x³ - 5x³) + (-10x² - 4x²) + (13x + 9x)    Group like terms together

-2x³ - 14x² + 22x                                    

7 0
3 years ago
Other questions:
  • One card is randomly selected from a deck of cards. find the odds in favor of drawing a club.
    11·2 answers
  • Jake ran2 miles. Jesse ran 4 times as far. There are 5280 in a mile. How many feet did Jesse run?
    5·2 answers
  • Write an expression for the number of feet in x inches.
    11·2 answers
  • A sprinkler system is being installed in a newly renovated building on campus. The average activation time is supposed to be at
    10·1 answer
  • PLEASE HELPPPPPPPP
    14·1 answer
  • $4.20 × $ 5.00=<br><br>A. $12.50<br><br>B. $21.00<br><br>C. $21​
    11·2 answers
  • Step by step how do you solve ratios and proportions?
    11·1 answer
  • What is the solution to the system of equations?
    5·2 answers
  • Find the surface area of a cylinder with a base radius of 5 ft and a height of 6 ft.
    13·1 answer
  • On Wednesday 28% of the customers who bought gas at a gas station made additional purchases. There were 300 customers who bought
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!