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
pav-90 [236]
2 years ago
15

In this figure prove that cd//ef​

Mathematics
1 answer:
MaRussiya [10]2 years ago
8 0

Answer:

1) 36 + 50 = 86 : Addition property of equality

2) m<D = m<ADB : If two angles have the same measure, then they are equal.

3) <D congruent to <ADB : if two angle are equal, then they are congruent.

4) <D, <ADB are alternate interior angles: assumed from diagram

5) <u>CD // AB</u> : if alternate interior angles are congruent, then the 2 lines cut by a transversal are //.

6) 130 + 50 = 180 : addition property of equality

7) m<E, m<BAE are supplements : if the sum of two angles equal to 180, then they are supplements.

8) <E, <BAE are same-side interior angles : assumed from diagram

9) <u>EF // AB</u> : if same-side interior angles are supplements, then the 2 lines cut by a transversal are //.

10) <u>CD // EF </u>: if two lines are // to the same line, then they are //.

im pretty sure this is the proof

You might be interested in
39 is 50% of what number
Zepler [3.9K]
39 multiplied by 2= 78
8 0
3 years ago
Read 2 more answers
7(x+2)=2x-1 solve for the variable
Len [333]

Answer:

x = - 3

Step-by-step explanation:

Given

7(x + 2) = 2x - 1 ← distribute parenthesis on left side

7x + 14 = 2x - 1 ( subtract 2x from both sides )

5x + 14 = - 1 ( subtract 14 from both sides )

5x = - 15 ( divide both sides by 5 )

x = - 3

7 0
3 years ago
I'm totally lost. How do I do this?
Mkey [24]
Don't get confused by the "0.01 cm" that's just telling you to round to the hundredths place. Moving on, the shaded area's exterior shows us that it is a square. Meaning you do s^2 to find the area. So, you find the square root of 15 which is <span>3.87... This means the diameter is also 3.87 because the diameter is equivalent to the side's measurement. Divide 3.87 by 2 to find the radius, giving you 1.935. This represents OT's length. Now, just round to the hundredths giving you 1.94 cm. </span>
5 0
3 years ago
7. Is it proportional?
SCORPION-xisa [38]

Answer:

A unit rate is the rate of change in a relationship where the rate is per 1.

The rate of change is the ratio between the x and y (or input and output) values in a relationship.  Another term for the rate of change for proportional relationships is the constant of proportionality.

If the rate of change is yx, then so is the constant of proportionality.  To simplify things, we set  yx=k, where k represents the constant of proportionality.  

If you solve a yx=k equation for y, (like this: y=kx), it is called a direct variation equation. In a direct variation equation, y varies directly with x. When x increases or decreases, y also increases or decreases by the same proportion.

To find y in a direct variation equation, multiply x by the constant of proportionality, k.

For example: Given the relationship y=7x, the constant of proportionality k=7,  so if x=3,  then y=3×7 or 21.

Given the same relationship, if x=7,  then y=7×7, or 49.  

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Determine the end behavior of P(x)=3x
ELEN [110]

Answer:

As x ⇒-∞, P(x) ⇒ -∞

As x ⇒ ∞, P(x) ⇒ ∞

Step-by-step explanation:

To find left hand end behavior, plug in negative infinity into the function and evaluate...

P(x) = 3(-∞) = -3(∞) = -∞

  The 'y' values of the function decrease towards negative infinity as the 'x' values approach negative infinity

P(x) = 3(∞) = ∞

  The 'y' values of the function increase towards positive infinity as the 'x' values approach positive infinity

6 0
3 years ago
Other questions:
  • What is the angle measure of angle b?<br> b<br> 67°<br> A) 113°<br> C) 157°<br> B) 23°<br> D) 67°
    15·2 answers
  • What is the value of n?
    6·1 answer
  • When Aubree goes bowling, her scores are normally distributed with a mean of 190 and a standard deviation of 14. Using the empir
    5·1 answer
  • Help on A and B porfavor
    15·1 answer
  • Lunch A survey showed that 30% of students bring their lunch to school. The survey polled 300 students. How many of the 300 stud
    7·1 answer
  • Which equation shows the point slope form of the line that passes through (5,1) and has a slope of 1/2
    14·1 answer
  • Test !! please help ASAP
    14·1 answer
  • Please help What is a= and b=?
    13·1 answer
  • 30 POINTS!!! Hello!! Marie here! Im giving BRAINLIEST and THANKS and FIVE STARS to the person who answers this question and expl
    15·1 answer
  • A triangle has vertices at (3,2),(3,6),(7,2) find the area of the triangle
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!