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
miv72 [106K]
3 years ago
6

Q.Take out the area of the trapezium.Parallel sides-15,23Non parallel sides-10,8​

Mathematics
2 answers:
-Dominant- [34]3 years ago
8 0

Answer:

i think the person who had answer in first is right

Dmitriy789 [7]3 years ago
3 0

Answer:

Step-by-step explanation:

Area of a trapezium is the average of the parallel sides times the distance between them.

If we subtract 15 units from each of the parallel sides, we end up with a triangle that has two sides of 8 units and one of 10 units. One of the 8 unit sides is the base and we need to find the height h which is perpendicular to this base.

Let the base be split into two segments, call one A, the other will be 8 - A

From Pythagoras.

10² - A² = h² = 8² - (8 - A)²

10² - A² = 8² - (8 - A)²

100 - A² = 64 - (64 - 16A + A²)

100 - A² = 64 - 64 + 16A - A²

     100  =  16A

         A = 6.25

h = √(10² - 6.25²)

h = √60.9375  

A = ½(15 + 23)√60.9375  

A = 148.31870246... ≈ 148.3 cm²

You might be interested in
What is the final amount if 1010 is decreased by 6% followed by a further 9% decrease?
maw [93]

Answer:

863.95

Step-by-step explanation:

1010×0.94=949.4

949.4×0.91=863.954

863.95

3 0
3 years ago
Based on the graph, how many students in a class of 180 students would have green as their eye color
kozerog [31]

Answer: look up alaskan pipeline

Step-by-step explanation:

5 0
3 years ago
Patty’s gymnastics class is 5/6 of an hour long. Patty practices five different skills and spends the same amount of time on eac
s344n2d4d5 [400]

Answer:

10 minutes

Step-by-step explanation:

5/6 of an hours is 50 min. Assume x is the time she spends on each skill.

5x=50

x=10

4 0
3 years ago
4. Which of the following lines is perpendicular to y = -2X + 8?
Alenkinab [10]

For this case we have to by definition, if two lines are perpendicular then the product of its slopes is -1.

That is to say:

m_ {1} * m_ {2} = - 1

We have the following equation:

y = -2x + 8

So:

m_ {1} = - 2

Thus:

m_ {2} = \frac {-1} {m_ {1}}\\m_ {2} = \frac {-1} {- 2}\\m = \frac {1}{2}

Thus, a line perpendicular to the given line must have slope m = \frac {1} {2}.

Option A:

x + 2y = 8\\2y = -x + 8\\y = - \frac {1} {2} x + 4

It is not perpendicular!

Option B:

x-2y = 6\\2y = x-6\\y = \frac {1} {2} x-3

If it is perpendicular!

Option C:

2x + y = 4\\y = -2x + 4

It is not perpendicular!

Option D:

2x-y = 1\\y = 2x-1

It is not perpendicular!

The correct option is option B

ANswer:

Option B

5 0
3 years ago
Can someone please help me with this question
Monica [59]

Answer:

Your question is unclear so I'm just gonna take my points and go...

5 0
3 years ago
Other questions:
  • Find the next two numbers in the pattern.<br> 12,500, -2500, 500, -100
    6·2 answers
  • If the ratio of areas of two similar polygons is 25:49 what is the ratio of the corresponding side lengths ?
    9·1 answer
  • What is 130° in radians?
    14·1 answer
  • Please help questions are in the pictures!
    5·1 answer
  • Janelle earns $12 per hour. What equation can be used to find how many hours Janelle worked if she earned $360?
    8·1 answer
  • If a train travels 1,600 km in 16 hours, how fast is it moving?
    6·1 answer
  • PLEASE ANSWER WITH NO LINKS THIS IS MY 3RD TIME ASKING THE SAME QUESTION Shopping at Savers Mart, Lisa buys her children 4 shirt
    15·1 answer
  • Help, I'm bad at math XD
    12·1 answer
  • What is the solution to th3 system of nolinear equations y=x^2 Y=-x+2​
    5·1 answer
  • In the diagram, what is the value of x?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!