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
ruslelena [56]
4 years ago
14

What is DE? Enter your answer as a decimal in the box. units The figure shows what appears to be acute triangle A B C. Point D i

s on side A B. Single tick marks pass through segments A D and D B. Point E is on side B C. Double tick marks pass through segments B E and E C. Segment D E is drawn. The length of side C A is 12.6.
Mathematics
1 answer:
Lynna [10]4 years ago
5 0

Answer:

DE = 6.3

Step-by-step explanation:

The length of the midsegment of a triangle is half the length of the side it is parallel to.

Side DE is parallel to side CA and side CA is 12.6.

12.6/2 = 6.3

DE = 6.3

You might be interested in
Brayden, Howard, and Vincent are on the football team. During a game, Brayden gains 1 less than 5 times the average number of ya
Gnoma [55]

Answer:  If two pair is parallel then it has no solution.

Step-by-step explanation:

Since we have given that

Let the number of gained yards by each player be y

For the case of Brayden:

Equation will be

y=5x-1\\\\y-5x=-1

For the case of Howard :

Equation will be

y=5x+1\\\\y-5x=1

For the case of Vincent :

y=4x+5\\\\y-4x=5

Since First two equations are parallel so it has no solution.

Reason:

y-5x=1\\\\y-5x=-1\\\\\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}\\\\\frac{1}{1}=\frac{5}{5}\neq \frac{1}{-1}

Hence, if two pair is parallel then it has no solution.


8 0
4 years ago
Read 2 more answers
In the figure below, the segment is parallel to one side of the triangle. The ratio of 12 to y is 1:2 1:3 1:4 2:3
Brrunno [24]

Answer:

Option B. 1 : 3

Step-by-step explanation:

There are two triangles shown in the picture attached ΔABC and ΔCD.

In these triangles sides AB and DE are parallel and BC is transverse line so ∠ABC = ∠EDC (corresponding angles)

Similarly AC is transverse to parallel lines AB and DE, so ∠BAC = ∠DEC (corresponding angles)

∠ACB is common in both the triangles.

Therefore ΔABC and ΔDEC are similar.

We know in similar triangles corresponding sides are in the same ratio.

\frac{AB}{ED}=\frac{AC}{EC}

\frac{y}{12}=\frac{30+15}{15}=\frac{45}{15}=3:1

Therefore ratio of y and 12 is equal to 3 : 1

Or ratio of 12 to y is 1 : 3

Option B is the answer.

7 0
4 years ago
Read 2 more answers
One group (A) contains 615 people. Three-fifths of the people in group A will be selected to win $50 fuel cards. There is anothe
mezya [45]
The answer is 246:157.

Step by Step:

Group A:

First, figure out 1/5 of the people in group A. ( 615/5 = 123 )

Find 2/5 ( the amount of people who lost ) ( 123*2 = 246 )

Group B:

They received the same amount of fuel cards, so you take 526 - 369 ( 3/5 of the last group, or the winners, which is the amount of cards they received ) = 157.
7 0
3 years ago
Who walks at a faster rate: someone w
andre [41]
Answer: Someone who walks 60 feet in ten seconds


Explaination: if you walk 25 feet per 5 seconds you would be walking 50 feet per 10 seconds
6 0
4 years ago
An aerial photograph from a U-2 spy plane is taken of a building suspected of housing nuclear warheads. When the photograph is t
NISA [10]

Answer:

Building is 56.58 feet long.

Step-by-step explanation:

Consider the provided information.

An aerial photograph from a U-2 spy plane is taken of a building suspected of housing nuclear warheads.

When the photograph is taken, the angle of elevation of the sun is 30°.

By comparing the shadow cast by the building in question to the shadows of other objects of known size in the photograph, scientists determine that the shadow of the building in question is 98 feet long.

As we know: \tan\theta=\frac{opp}{adj}

The value of tan 30 degrees is \frac{1}{\sqrt{3} }

\tan30=\frac{h}{98}

\frac{1}{\sqrt{3}}=\frac{h}{98}

h=\frac{98}{\sqrt{3}}

h=56.58

Hence, Building is 56.58 feet long.

8 0
4 years ago
Other questions:
  • WILL GIVE BRAINLIEST TO 1ST
    5·1 answer
  • Need Help ASAP ! 25 points !!
    7·1 answer
  • Another home business has an average income of $1.200.00 per month with a standard deviation of $100.00. If the income in a give
    15·1 answer
  • I have 27 apples. I also have 18 friends. How can I divide the apples between myself and my friends?
    5·2 answers
  • A store has 263 board games. Sit has 100 fewer puzzles than board games. The store has 10 more action figures than puzzles. Writ
    11·2 answers
  • Kia got a notice from the bank that she spent more money than was in her accou
    14·1 answer
  • : How many 3/2's are in 5? ​
    7·1 answer
  • The area for the square below is 36 square inches. what is the length of its sides
    15·2 answers
  • Find the vertex. f(x) = 9x2 + 1​
    10·1 answer
  • I ate 8/15 of the total amount of soup, then 140 ml of it remained in the bowl. how many milliliters of soup were there in the b
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!