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
lakkis [162]
1 year ago
7

13. Check all the true statements.

Mathematics
1 answer:
romanna [79]1 year ago
3 0

Based on the triangle midsegment theorem, the true statements are:

DE║AC

2DE = AC

<h3>What is the Triangle Midsegment Theorem?</h3>

If a line segment joins two sides of triangle and divides them at their midpoint, the divided segments will be congruent, and thus, the line segment joining the two sides is a midsegment of the triangle. According to the triangle midsegment theorem, the midsegment will be parallel to the third side that is not divided and also would be 1/2 its length. That is, the third side is twice the midsegment of that triangle.

In the image given, considering triangle ABC, we can make the following conclusions based on the triangle midsegment theorem:

D and E are midpoints of sides AB and BC respectively because they are divided by segment DE equally.

The midsegment is DE.

DE would be parallel to the third side, line segment AC.

Length of AC would be twice the length of DE

In conclusion, the true statements based on the triangle midsegment theorem are:

DE║AC

2DE = AC

Learn more about the triangle midsegment theorem on:

brainly.com/question/12234706

#SPJ1

You might be interested in
Please Help Me I Will Give You The Brain Crown And Extra Points! Pt2
belka [17]
<h3>Answer:  2 seconds</h3>

=========================================================

Explanation:

I'll be using x in place of t

The equation given is y = -4.9x^2 + 19.8x + 58

It is of the form y = ax^2 + bx + c which is the standard form for quadratics.

We have,

  • a = -4.9
  • b = 19.8
  • c = 58

Plug the first two values into the equation below

h = -b/(2a)

h = -19.8/(2*(-4.9))

h = 2.0204081632653

That value is approximate.

Rounding to the nearest whole number gets us roughly h = 2

Recall that (h,k) is the vertex of the parabola. In this case, it's the highest point. The cannonball reaches the highest point at roughly 2 seconds.

-----------------

Extra side notes:

  • To find the maximum height, plug the h value into the original equation. This will yield the value of k.
  • To find the cannonball's flight time, plug in y = 0 and solve for x. Ignore the negative x solution.
6 0
3 years ago
Nnnnnnnnnnnnn nnnnnn nnnnn 
Serhud [2]
What's the question...?
5 0
3 years ago
Is this solvable or simplifiable
sashaice [31]

Answer:

hello please follow me I am new and thanks for free points

8 0
3 years ago
Read 2 more answers
Help With These Special Right Triangles!!!
NikAS [45]

Answer:

B.

I hope it will be useful.

Hint:

Since its an isosceles right angled triangle! (Apply the properties)

Or, you can use Pythagoras theorem.

(2x^2=9 v.i.z., on rationalizing 1.5*√2)

4 0
3 years ago
Help please!
Mamont248 [21]

Answer:  see proof below

<u>Step-by-step explanation:</u>

Use the Sum & Difference Identity: cos (A + B) = cos A · cos B - sin A · sin B

Recall the following from Unit Circle: cos (π/2) = 0, sin (π/2) = 1

                                                              cos (π) = -1,   sin (π) = 0    

Use the Quotient Identity:   \tan A=\dfrac{\sin A}{\cos A}

<u>Proof LHS → RHS:</u>

\text{LHS:}\qquad \qquad \dfrac{\cos \bigg(\dfrac{\pi}{2}+x\bigg)}{\cos \bigg(\pi +x\bigg)}

\text{Sum Difference:}\qquad \dfrac{\cos \dfrac{\pi}{2}\cdot \cos x-\sin \dfrac{\pi}{2}\cdot \sin x}{\cos \pi \cdot \cos x-\sin \pi \cdot \sin x}

\text{Unit Circle:}\qquad \qquad \dfrac{0\cdot \cos x-1\cdot \sin x}{-1\cdot \cos x-0\cdot \sin x}

                            =\dfrac{-\sin x}{-\cos x}

Quotient:                 tan x

LHS = RHS \checkmark

7 0
3 years ago
Read 2 more answers
Other questions:
  • Use properties of addition and subtraction to evaluate the expression. -19 - 53 - 31 Enter your answer in the box.
    7·2 answers
  • The triangular prism shown has triangular _____face(s) and lateral face(s).
    7·1 answer
  • PLEASE HELP
    14·2 answers
  • Simplify: 0.15(21b – 56)
    13·2 answers
  • How do I factor 25n^2 - 16?
    7·1 answer
  • Elizabeth made 80 cookies for the bake sale at school. She sold 35% of the cookies. How many cookies are left to sell tomorrow?
    9·1 answer
  • Find the value of x for which (4/5)-4 x (4/5)-7 =(4/5)2x-1 Can some1 say this ans fast plz
    8·1 answer
  • Which scenario would result in 12 possible outcomes?
    14·2 answers
  • Uno de los dos ángulos suplementarios es diecisiete veces más grande que el otro.
    9·1 answer
  • Okok I'll try to get it myself but plssss help mee (brainliest)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!