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
Allushta [10]
3 years ago
14

Points A, B, and C are midpoints of the sides of right triangle DEF.

Mathematics
2 answers:
Radda [10]3 years ago
8 0

Answer:

1) True 2) True 3) False 4) True

Step-by-step explanation:

In this question let's verify those options

1.Triangle A B C is inside triangle D E F. (true)

If A, B and C are midpoints of DEF then connecting those midpoints we have an interior triangle.

2. Point A is the midpoint of side F D, point B is the midpoint of side D E, point C is the midpoint of side F E. (true)

3. Angles D F E and A B C are right angles. (false)

These triangles are similar. And In this case, the right angles are:

E\hat{D}F\cong A\hat{C}B=90^{\circ}\\\measuredangle D=\measuredangle C=90^{\circ}

D and C are opposed to the larger side, and not F, and B

Because:\measuredangle F\cong\measuredangle B \neq90^{\circ}

4. The length of D E is 10 centimeters, the length of F D is 6 centimeters, and the length of F E is 8 centimeters. (true)

Let's test this by the Pythagorean Theorem. For DE is the hypotenuse and FD and FE is their legs.

\overline{DE}=\sqrt{FD^{2}+FE^{2}}\\\overline{DE}=\sqrt{8^{2}+6^{2}}\\10= \sqrt{100}\\10=10

DIA [1.3K]3 years ago
8 0

Answer:

B, C, and D, are all true

Step-by-step explanation:

Got it right on edg

You might be interested in
How do you find an average?
wlad13 [49]

Answer:

Finding the average is a very straightforward concept. If you have a set of numbers, the average is found by adding all numbers in the set and dividing their sum by the total number of numbers added in the set.

example;

16, 17, 5, 27, 30, 20, 4, 1, 19, 9

add all 10 of these numbers together

16 + 17+ 5+27+30+4+1+19+9 = 148

divide 128 by 10

148 / 10 = 14.8

14.8 is the average

4 0
3 years ago
May you someone help me It's my last question!​
Orlov [11]

Answer:

-19. Cant be -6 as its to the right. the others are positive.

3 0
3 years ago
Solve the 3x3 system shown below. Enter the values of x, y, and z.
slamgirl [31]

Answer:

x = 1

y = -1

z = 2

Step-by-step explanation:

You have the following system of equations:

x+2y-z=-3\ \ \ \ \ (1)\\\\2x-y+z=5\ \ \ \ \ \ (2)\\\\x-y+z=4\ \ \ \ \ (3)

First, you can subtract euqation (3) to equation (1):

x + 2y - z = -3

<u>-x +y  -z = - 4 </u>

0   3y  -2z = -7    (4)

Next, you can multiply equation (3) by 2 and subtract it to equation (2):

2[ x -y + z = 4]

<u> -2x +y -z = -5</u>

  0 -y + z= 3     (5)

You multiply equation (5) by 2 and sum (5) with (4):

2[ -y  + z = 3]

<u>    3y  -2z= -7</u>

  y  + 0 = -1

Then y = -1

Next, you replace y=-1 in (5) to obtain z:

-(-1) + z = 3

z = 2

Finally, you can replace z and y in the equation (3) to obtain x:

x - (-1) + (2) = 4

x = 1

7 0
3 years ago
The graph shows a proportional relationship.What is the unit rate? Enter your answer as an improper fraction in simplest form in
ruslelena [56]
That is the slope
rise/run
we see we have (2/5,1/2)
rise is y, run is x
(x,y)
((1/2)/(2/5)=(1/2)(2/5)=2/10=1/5

unit rate is y=(1/5)x
6 0
3 years ago
Mary is making pillows for her Life Skill class. She bought 2 ½ yards of fabric. Her total cost was $15. What was the cost per y
BigorU [14]

Answer:

15 divided by 2 1/2

Step-by-step explanation:

$6 per yard.

4 0
3 years ago
Other questions:
  • 0.5 kilograms (kg) is equal to how many ounces? Round your answer to the nearest tenth.
    12·2 answers
  • Quick help meeeeeeeeeeeeeee!!!!!1.Which equation has a graph that is parallel to the graph of 2x - 3y = 1?
    9·1 answer
  • Find the maximum value of C=3x+2y
    6·1 answer
  • How do you simplify this expression then evaluate it if x=2? 5x - 2 + 3 - x
    10·1 answer
  • a sphere and a cone have the same volume. each figure has a radius of 4 inches. what is the volume of the cone
    12·1 answer
  • 4. which algebraic expression is a polynomial with a degree of 2? 4x3 − 2x 10x2 − 8x3 3 6x2 − 6x 5
    10·2 answers
  • Consider two hard disks, d1, and d2, such that in 50,000 hours of operation d1 fails with probability 1/3 and d2 fails with prob
    10·1 answer
  • Explain why the measure of angle 2 is greater than the measure of angle 3
    6·1 answer
  • Hiii i need ur help plz &lt;3 &lt;3
    7·1 answer
  • 12. The function t = 19m + 65 represents the temperature t (in degrees Fahrenheit)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!