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
jonny [76]
3 years ago
6

Q11.

Mathematics
1 answer:
Kamila [148]3 years ago
5 0

Answer:

Step-by-step explanation:

The area of a trapezium is given as;

Area = \frac{1}{2}(a + b)h

where: a is the length of the upper side, b is the length of its base and h is its height.

This implies that; a = x - 4, b = x + 5, h = 2x and area = 351

Thus,

351 =  \frac{1}{2}((x - 4) + (x + 50)) 2x

      = (x - 4 + x + 5) x

531 = (2x + 1) x

      = 2x^{2} + x

So that;

2x^{2} + x - 531 = 0

This gives a quadratic equation.

You might be interested in
How do you do this? It's due tomorrow
Korvikt [17]
Lets think they have cards,  Alex = x , Gil = y and Meg = z. Then,
x+y+z = 740

Alex had 20 fewer cards than Gil. So,
x+20 = y

Alex had 120 fewer cards than Meg. So,
x+120 = z

 x+(x+20)+(x+120) = 740
3x + 140 = 740
x= 200

y= 220
z= 320

<span>So Alex had 200 cards, Gil had 220 cards and Meg had 340 cards</span>
4 0
4 years ago
Read 2 more answers
You are the administrator of an annual essay contest scholarship fund. This year a $84,000 college scholarship is being divided
shutvik [7]

The winner got $70,000 and the runner up got $14,000

Let the winner be represented by x and runner up by y

Data given;

  • Amount to be shared = $84000
  • x = 5y

This is a simple case of ratio i.e 1 : 5

<h3>Equation</h3>

x = 5y\\84000 = 5y + y\\84000 = 6y\\y = 14000\\

The runner up received $14000. let's use this data to find how much the winner got.

x = 5y \\x = 5 * 14000\\x = 70000

From the calculations above, the winner got $70,000 and the runner up got $14,000.

Learn more about ratios here;

brainly.com/question/1781657

3 0
2 years ago
What is the area of this figure drag and drop the appropriate number into the box
lyudmila [28]

Answer:

142ft squared

Step-by-step explanation:

It was actually very easy, the working may not be clear and hard to understand but it's on the attached image. Hope I helped! :)

4 0
3 years ago
A college surveyed all 3600 of its students and discovered 1360 are not coffee drinkers. What percent of the students do not dri
Mumz [18]

Answer:

Step-by-step explanation:

37 percent

4 0
3 years ago
Read 2 more answers
Probability of landing in the white not the red. Please helpppppppppppp!
Iteru [2.4K]

Fun, geometry disguised as probability.

That's a pentagon, which we can view as 10 right triangles with legs a and s/2 (half of s) and hypotenuse r.  So area of the pentagon is

P = 10 × (1/2) a (s/2) = 10 (1/2) (3.2) (4.7/2) = 37.6

The area of the circle is πr² so the circle area is

C = π (4²) = 50.265482

The white area is the difference, C-P, and the probability we seek is the fraction of the circle that's white, so (C-P)/C.

p = (C-P)/C =1-P/C = 1-37.6/50.265482 = 0.251971

Answer: 0.25

Higher than I would have guessed from the figure.

7 0
3 years ago
Other questions:
  • Find the measure of angle x in the figure below: (1 point)
    11·1 answer
  • Read and write the number in two other forms. five hundred sixty-one thousand, thirty-eight
    10·1 answer
  • What is 7/8 as a percent and fraction
    5·1 answer
  • What is the factored form of y=x^2 - 4x + 3?
    6·1 answer
  • (3+h)^3-27/h<br> Lim---&gt;0 <br> help pls. ...?
    13·1 answer
  • Bond's Gym is not able to expand quickly. It would take
    15·2 answers
  • Malcolm wants his final grade in his Algebra class to be at least a 93. He scored an 85, 93, 95 and 97 on his first four tests.
    9·1 answer
  • How many games did you bowl? does this question a statistical question. and why
    12·1 answer
  • How much would $125 invested at 8% interest compounded
    9·2 answers
  • 4) In the accompanying diagram, WX || YN . If m
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!