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
blsea [12.9K]
3 years ago
5

Triangle ABC is equilateral. Find the height of BD

Mathematics
2 answers:
Oksana_A [137]3 years ago
4 0

Answer:

C) 4√3

Step-by-step explanation:

The given triangle is an equilateral triangle. BD is angle bisector.

Triangle BCD is a 30-60-90 degree triangle in the ration of 1:√3:2

Here we are given BC, that is highest length of the side.

So 2x = 8

x = 8/2

x = 4.

BD = √3 x

Now plug in x =4, we get

Height (BD) = 4√3

Thank you.

MA_775_DIABLO [31]3 years ago
4 0

Answer:

c

Step-by-step explanation:

You might be interested in
A store is having a sale on walnuts and chocolate chips. For 9 pounds of walnuts and 7 pounds of chocolate chips, the total cost
vfiekz [6]

Answer:

Walnuts = $1.75 per pound

Choc chips = $3.75 per pound

Step-by-step explanation:

In photo, is working out.

6 0
4 years ago
Find the intercepts of the graph of <br><br> 5x + y = 5
skelet666 [1.2K]

Answer:

If you need the y-intercept of that equation it is 5

Step-by-step explanation:

subtract the 5x to the other side to get y=-5x+5

6 0
4 years ago
The sides of a square field are 28 meters. A sprinkler in the center of the field sprays a circular area with a diameter that co
Ulleksa [173]

Answer:

168.24784 m²

Step-by-step explanation:

Area of the square:

28 x 28=784 sq. m.

Area of the circle:

π(r²)=π(14)²=196π

    =615.75216

Area not covered by the sprinkler:

784-615.75216=168.24784 m²

6 0
3 years ago
Read 2 more answers
The interest on $2,000 for 2 years is $320. What is the simple interest rate?
umka2103 [35]
R = 8%/year

Equation:
r = (1/t)(A/P - 1)
Calculation:
Solving our equation:
r = (1/2)((2320/2000) - 1) = 0.08
r = 0.08

Converting r decimal to R a percentage
R = 0.08 * 100 = 8%/year

The interest rate required to get a total amount, principal plus interest, of $2,320.00 from simple interest on a principal of $2,000.00 over 2 years is 8% per year.
7 0
3 years ago
Molly's basic cell phone plan charges $35.99 for service plus $0.21 per minute beyond the included 250 minutes in the plan. How
Ilia_Sergeevich [38]
The answer is $84.29

Let the number of minutes be x.
$35.99 is fixed price and does not depend on the number of minutes x. Each minute costs $0.21 so it depends on x and we have 0.21x in the function. However, 250 minutes are already included and should not be included in x. Therefore, the function that represents the monthly cost looks like this:
f(x) = 35.99 + 0.21 * (x - 250)

Now, let's calculate for x = 480 minutes:
f(480) = 35.99 + 0.21 * (480 - 250)
f(480) = 35.99 + 0.21 * 230
f(480) = 35.99 + 48.30
f(480) = 84.29
6 0
3 years ago
Other questions:
  • When simplified completely, the product of a monomial and a binomial is <br> a trinomial.
    12·1 answer
  • john read the first 114 pages of a novel which is 3 pages less than 1/3 of the novel. write the equation
    15·1 answer
  • Solve: 3x -6/3 = x + 3/6
    15·1 answer
  • Write an algebraic expression the product of 6 and Y increased by 15
    15·1 answer
  • I need help with: 100 textbooks increased by 99%. Is it 199??
    7·2 answers
  • A village fete has a children’s running race each year, run in heats of up to ten children. For each heat the first three contes
    5·1 answer
  • Heather drew the scaled drawing of a train car shown below. She used the scale of 2 cm = 5 ft to complete the
    9·1 answer
  • A long paper strip with a width of 5 cm is folded, as shown in the picture. Find the smallest possible area of the gray triangle
    8·1 answer
  • Please help ASAP: Mr.Rodriguez bought a jacket at $69.50, a tie at $15.50 and a raincoat at $75.35. If he received a discount of
    10·2 answers
  • TIME REMAINING
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!