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
True [87]
3 years ago
5

Given that ABCD is a rhombus, what is the value of x?

Mathematics
1 answer:
stealth61 [152]3 years ago
4 0

Answer:

Diagonals of a rhombus intersect at right angles

Therefore, \angle AOD=90

Now,in\: \bigtriangleup AOD

\angle OAD+\angle AOD+\angle ADO=180

x+90+3x+12=180 \leftarrow [combing \: like\: terms]

4x+102=180\\-102   \: -102 \leftarrow [subtracting \:102 ]

\frac{4x}{4} =\frac{78}{4} \leftarrow [dividing \: by\: 4]

x=19.5 \Longleftarrow

<u>OAmalOHopeO</u>

<u />

You might be interested in
2) Escribir en lenguaje simbólico y resolver. Recordamos la definición de
Alex_Xolod [135]

Answer:B

Step-by-step explanation:

5 0
3 years ago
Please help!!! ill mark brainliest
Vesnalui [34]

3x - 1 = 3x + 1  

subtract 3x from both sides to get (-1 = 1).  This is a false statement so it is: CONTRADICTION

************************************************

4x - 11 = 7

add 11 to both sides and then divide both sides by 4 to get (x = \frac{18}{4} = \frac{9}{2}).  This statement is true only when x = \frac{9}{2} so it is: CONDITIONAL

*************************************************

2 - 8x = 2 - 8x

add 8x to both sides to get (2 = 2).  This is a true statement so it is: IDENTITY

*************************************************

x + 1 = -x + 4

add x to both sides, subtract 1 from both sides, and divide both sides by 2 to get  (x = \frac{3}{2} ). This statement is true only when x = \frac{3}{2} so it is: CONDITIONAL

Answer: B, A, C, A

6 0
3 years ago
After school, Bruce skateboards directly from school to a skate park and then from the
ankoles [38]
It’s 15 km. You need to take the root from 9^2 + 12^2 wich equals 15. You need to use pythagoras a^2 + b^= c^2
5 0
3 years ago
Seven than the product of 5 and a number
weqwewe [10]
Do you mean 7 more than the product of 5 and a number? If so the answer is... y=7+5x
5 0
3 years ago
Read 2 more answers
A garden is 20 feet long by 8 feet wide. The length and width of the garden will each be increased by the same number of feet. T
marta [7]
The correct answer is C because the problem showed ( x + 20 ) and ( x + 8 ) two times in the problem. That explains why there is a two outside of the parentheses.
Hope I helped! :)
4 0
3 years ago
Read 2 more answers
Other questions:
  • If W = 11 ft, X = 12.6 ft, Y = 7ft, and Z= 9.6ft, what is the area of her closet?
    11·2 answers
  • .45 ÷ 10 = ? <br><br> A. .45<br> B. .045<br> C. 45<br> D. 4.5
    6·2 answers
  • Symplify the expression 3(2x−7)+ 1 3 (7x+2)
    13·1 answer
  • Please help me <br><br> giving brainliest
    7·2 answers
  • PLEASE HELP WILL GIVE BRAINLIEST!!!!!!!!!!!
    11·1 answer
  • I NEED THIS FOR A TEST PLZ HELP!!!
    9·2 answers
  • Pls explain ASAP <br> Thanks
    9·2 answers
  • Solve the equation using the method of factorisation-
    8·1 answer
  • Write an equation of the line that passes through (-4, 1) and is perpendicular to line y=2x+3.
    5·1 answer
  • I tried the math problem and i am not sure how to do factorization or multiplication.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!