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
astra-53 [7]
3 years ago
14

How do I answer this??

Mathematics
1 answer:
Mandarinka [93]3 years ago
4 0
We know that:
∠ABC=∠BCA=xº
∠BDC=∠BCD=xº

1) we have to find the angle ∠DBC:
∠BDC+∠BCD+∠DBC=180º
xº+xº+∠DBC=180º
2xº+∠DBC=180º
∠DBC=180º-2xº

2) we have to find the angle ∠ABD:
∠ABD=∠ABC-∠DBC
∠ABD=xº-(180º-2x)
∠ABD=xº-180º+2xº
∠ABD=3xº-180º

Answer: ∠ABD=3xº-180º
You might be interested in
Part A: Find a rational number that is between 7.7 and 7.9. Explain why it is rational. (2 points)
8_murik_8 [283]
A rational number is any number that can be written as the ratio between two other numbers i.e. in the form \frac{a}{b}

Part A:
An easy choice that makes sense is 7.8, right in the middle. To prove that it's rational we need to write it as a ratio. In this case we have 7.8=\frac{78}{10}

Part B:
We need a number that can't be written as a ratio (because it neither terminates nor repeats). Some common ones are \sqrt{2}, e, \phi and \pi so it makes sense to try and use those to build our number. In this case \frac{11\sqrt{2}}{5}\approx7.78 works nicely. 
6 0
3 years ago
Simplify 1.61 to 2.3
andrew-mc [135]

Answer:

The answer is 37.03

Step-by-step explanation:

Hope this is correct

HAVE A GOOD DAY!

7 0
3 years ago
Four friends all use $10 off coupons to buy themselves concert tickets.
eimsori [14]

Answer:

$64

Step-by-step explanation:

Since there were 4 of them and the coupons were $10 off, they saved a total of $40

To find how much they would have spent without the coupons, add 40 to 216:

216 + 40

= 256

To find the normal cost of one ticket, divide this by 4:

256/4

= 64

So, the price of one concert ticket without the coupon is $64

5 0
3 years ago
What is the equation of the line x–3y=18in slope-intercept form?
masha68 [24]

Answer:

the answer would be done like this

Step-by-step explanation:

you have to get y by itself so you would need to move the x to the right of the equal sign

once you move anything to the opposite side it switches, so positive becomes negative vice versa

-3y=-x+18

you need to make sure you have positive 1 y so you would divide y by -3 to make it 1

everything else is multiplied by -3 as well

so the answer would be y=⅓x-6

3 0
2 years ago
Read 2 more answers
Identify the subsets of real numbers to which the number 25√ belongs.
Radda [10]
It would be rational
8 0
3 years ago
Read 2 more answers
Other questions:
  • A store is having a 1/8 off sale. What percentage of each item sold does the cashier subtract to find the sale price
    6·1 answer
  • -2(3x-4)=-8x<br> Solve for x
    6·2 answers
  • Find the measurement of each liquid in the graduated cylinders. and do not forget your UNITS!!! :)
    5·2 answers
  • Write 820.341 in scientific notation​
    13·1 answer
  • ANSWER QUICK. I NEED ANSWER IN 5 MINUTES.​
    12·1 answer
  • Simplify this expression 3(2x-6)+x.
    9·2 answers
  • Find the missing angle measure in the figure below.
    7·2 answers
  • 2(x + 7) + 3 x = 12 <br> what is the first step In solving this equation for x?
    14·2 answers
  • Use the graph below to choose the true statements select all that apply …
    9·1 answer
  • Evaluate: <img src="https://tex.z-dn.net/?f=%5Csqrt%7B100-36%7D%20%2B%2032%20-%201" id="TexFormula1" title="\sqrt{100-36} + 32 -
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!