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
Zinaida [17]
3 years ago
12

In the diagram, mBDA = 150°. Find mBDC.

Mathematics
1 answer:
Dafna1 [17]3 years ago
6 0

Answer:

a.  70°

Step-by-step explanation:

m∠BDC + m∠CDA = m∠BDA

-3x + 34 - 2x + 56 = 150

-5x + 90 = 150

-5x = 60

x = -12

m∠BDC = -3x + 34 = -3(-12) + 34

              = 36 + 34 = 70°

You might be interested in
What is the square root of 75m
umka2103 [35]

Answer:

the square root of 75 is either \sqrt75 or 8.66

Step-by-step explanation:

6 0
3 years ago
Which inequality is true when x = 4?
elena-s [515]

Answer:

x + 5 < 3

Step-by-step explanation:

One inequality could be x > 3. So when x = 4 this is true because 4 is greater than 3.

7 0
2 years ago
What’s #1?????? Plz help
liq [111]

Answer:

C) 400\pi

Step-by-step explanation:

The formula for area is

A=pi * radius ^2

If the diameter is 40, the radius is 20

Therefore

A=\pi 20^{2} \\A=\pi 400

7 0
3 years ago
Describe the differences between a parabola that has a horizontal directrix and a parabola that has a vertical directrix.
Readme [11.4K]
 <span>A parabola that has a horizontal directrix is a parabola that opens up or down. 

Here are some of its components: 
1) Standard equation of a parabola with a horizontal directrix: (x-h)^2 = 4a(y-k), 
a = distance from vertex to focus 
2) Vertex at (h,k) 
3) Focus(h,k+a) 
4) Directrix: y = k-a 
5) Axis of symmetry: x = h 

A parabola that has a vertical directrix opens to the right or left and is on its side. 

Here are some components 
1) Standard equation of a parabola with a vertical directrix: (y-k)^2 = 4a(x-h) 
2) vertex (h,k) 
3) focus (h+a,k) 
4) directrix: x = h-a 
5) Axis of symmetry: y = k

Hopes this helps :)</span>
4 0
3 years ago
Apply the distributive property to factor out the greatest common factor.<br> 35 + 14 =
natka813 [3]

Answer:

2(5+2)

Step-by-step explanation:

The greatest common factor would be 7. So now 35/7 is 5 and 14/7 is 2. Now put it in distributive property! GCF on the outside and the new numbers we just got in the inside. There's your answer! Have a great day! :)

3 0
3 years ago
Other questions:
  • What is the length of the third side of the window frame ??
    5·2 answers
  • Can you find the area of a parralllogram with just the length of the diagonals
    13·1 answer
  • Given the functions, f(x)=30x4+9x3+27x2−21x−17 and g(x)=6x+3, divide f(x) by g(x) and simplify.
    7·1 answer
  • Combine like terms in the expression below.<br> 99x+4.11xy+24y+33y−12x+9.08
    6·2 answers
  • The product of seven, y, and x
    11·1 answer
  • I need help with this, Its not a test or in class assignment. I just need help..
    7·1 answer
  • +
    12·1 answer
  • How much energy is absorbed by 250.0 g of water when its temperature rises
    14·1 answer
  • Please please give answer
    8·1 answer
  • The equation of a line is y = 17x -6
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!