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
Lemur [1.5K]
3 years ago
7

The roof of a house seen from the front is an isosceles triangle \Delta ABC ΔABC with base 14.5 m and sides of length 8.5 m. Fin

d how high above line [BC] the vertex A is​

Mathematics
1 answer:
melamori03 [73]3 years ago
7 0

Answer:

4.4 m

Step-by-step explanation:

Draw the height of the triangle (perpendicular line from point A to line BC).  Since ABC is an isosceles triangle, the height is a perpendicular bisector, so it splits the triangle into two congruent right triangles.

Use Pythagorean theorem to find the height.

c² = a² + b²

(8.5 m)² = (14.5/2 m)² + h²

h ≈ 4.4 m

You might be interested in
e. Translate the word problem below into an equation; then solve. It only takes Vera 2 hours to sew 1 dress, but it takes Ivy 4
Daniel [21]

Using the together rate, it is found that it would take them 16 hours to sew 12 dresses.

<h3>What is the together rate?</h3>

The together rate is the <u>sum of each separate rate</u>.

In this problem, we have that:

  • Vera's rate is of 1/2.
  • Ivy's rate is of 1/4.

Hence, the together rate is the time it would take them to produce one dress working together, and is given by:

\frac{1}{x} = \frac{1}{2} + \frac{1}{4}

\frac{1}{x} = \frac{2 + 1}{4}

3x = 4

x = \frac{4}{3}

Then one dress takes \frac{4}{3} of an hour, and the time for twelve dresses is:

t = 12 \times \frac{4}{3} = 4(4) = 16

It would take them 16 hours to sew 12 dresses.

To learn more about the together rate, you can take a look at brainly.com/question/25159431

6 0
2 years ago
HELP PLEASE
Jet001 [13]

Answer:

c $11,751

Step-by-step explanation:

The function that models Alicia's car is

f(x) = 21000(0.93)^{x}

where x represents the number of years since she purchased the car.

We want to find the value of Alicia's car after 8 years.

We substitute x=8 into the formula to get:

f(8) = 21000(0.93)^{8}

f(8) = 21000(0.5596)

f(8) = 11751.218

We round to the nearest dollar to get:

f(8) =11751

The correct answer is C.

5 0
2 years ago
In AWXY, Y = 3.6 inches, w = 6 inches and ZX=147º. Find
ivann1987 [24]

Answer:

9.2

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
The graph of f(x) = 2x2 + x – 15 passes through the point (0, –15) and one of its zeros is (2.5, 0). What is the other zero of t
pogonyaev

Answer:

x=-3

Step-by-step explanation:

6 0
3 years ago
HELPPP please help i don’t get it
Nady [450]

this is what would make sence for me

the frist one was confusing

8 0
2 years ago
Other questions:
  • What is the value of x?
    9·1 answer
  • Sorry I messed something up and I don't know how to delete my question
    9·1 answer
  • Find the measure of each angle. Assume the lines are parallel.
    8·1 answer
  • Sam found 24 seashells. Steve also found some. They found 67 seashells altogether. How many seashell did Steve found.
    6·1 answer
  • How many ways can the letters of the word EIGHT be arranged if the first letter must be an E?
    8·1 answer
  • 5x + 3 = x + 11<br> Please help fast thankyou
    9·1 answer
  • Elizabeth has a piece of ribbon that is 4.5 meters long.She wants to cut it up into pieces that are 0.25 meter long. How may pie
    15·2 answers
  • PLEASE HELPPP!!
    12·1 answer
  • A city has 5 houses for every 8 old houses. If there are 35 new houses in the city, how many old houses are there?
    9·1 answer
  • Identify what type of polygon this is based on its number of sides. Is this a regular polygon why or why not?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!