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
ycow [4]
2 years ago
13

Please help me with this geometry question and show work

Mathematics
1 answer:
soldi70 [24.7K]2 years ago
8 0

(3) 8

Step-by-step explanation:

Note that ∆ADE is similar to ∆ABC. As such, the ratios of their legs are equal. Also note that AD = AB + BD.

BC/AB = DE/AD

BC/10 = 12/(10 + 5) = 12/15 = 4/5

or

BC = 10(4/5) = 8

You might be interested in
Solve the system of linear equations below.
sergiy2304 [10]

Answer:

Step-by-step explanation:

Let's use the addition/elimination method to solve this.  If we multiply the first equation through by -1 we can eliminate the x terms.  Doing that gives us:

 -x  +  3y  =  3

  x  +  3y  =  9

The x's subtract each other away leaving us with

6y = 12 so

y = 2.

Now we will plug in 2 for y in either of the original equations to solve for x:

x + 3(2) = 9 and

x + 6 = 9 so

x = 3

The coordinate for the solution is (3, 2) or x = 3, y = 2

The second choice down is the one you want.

6 0
3 years ago
Please help math question !! need range and domain for each picture thank you so much !
Lera25 [3.4K]

Answer: The correct option for figure 1 is (a) and correct option for figure 2 is (b).

Explanation:

Domain is the set of input and range is the set of output.

If a function is defined by f(x), then all the possible values of x is called domain and all the values of f(x) is called range.

In the figure (1)  the elements of first set is input(Domain) and the elements of second set is output(Range).

The values of first set are -2,-1,0 and 2, so,

Domain = { -2, -1, 0, 2}

The values of second are -4, -2 and 2, so,

Range = { -4, -2, 2}

In figure (2) the values of x and y are given, the values of x are domain and the values of y are range.

The values of x are -4, -2, 1 and 4, so,

Domain = { -4, -2, 1, 4}

The values of y are -2, 1, 4 and 4,, Since the repetition of elements are not allowed in the set so,

Range = { -2, 1, 4}

Therefore, the option (a) is correct for figure (1) and the option (b) is correct for figure (2).

4 0
3 years ago
Solve for x, where x is a real number.
Alex787 [66]

Hello!

First of all, let's undo the square roots by squaring both sides.

6x+2=9x-8

We subtract 9x from both sides.

-3x+2=-8

We subtract 2 from both sides.

-3x= -10

We divide both sides by -3.

x=10/3

I hope this helps!

7 0
3 years ago
Read 2 more answers
A3 + 27 what sign is the first binomial
lakkis [162]

Answer:

a3+27

a +BC

=a 30

30+a

=30ⁿ

3 0
3 years ago
Can someone help me with real numbers
Ierofanga [76]

Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

7 0
3 years ago
Other questions:
  • Help me please ??!!!!
    11·2 answers
  • Which line segment shows the base that corresponds to the given height of the triangle?
    5·2 answers
  • To increase a number by 4.6%, what single multiplier would you use
    15·1 answer
  • If →u and →v are the vectors below, find the vector →w whose tail is at the point halfway from the tip of →v to the tip of →v−→u
    7·1 answer
  • Find the area of the circle.<br>Use 3.14 for TT.<br>d = 12 ft<br>A = [?] ft2<br>A=1tr2​
    12·1 answer
  • A triangle has side lengths of 24 cm, 24 cm, and 24 cm. What type of triangle is this?
    7·2 answers
  • Suppose that the area of square lawn is 25x^2+40x+16
    8·1 answer
  • Imma commit sewer side :p
    14·1 answer
  • Mary saved her money
    5·1 answer
  • Morgan throws a ball up into the air. The height of the ball above the ground, in feet, is modeled by the function h(t) = −16t 2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!