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
Jobisdone [24]
2 years ago
12

PLease help me in my maths homework I dont really understand it. Calculate the area of the trapezium CDEF

Mathematics
1 answer:
alexira [117]2 years ago
5 0

Answer:

48

Step-by-step explanation:

first, since its a rectangle, the parallel sides are equal making the top of the rectangle 9cm. the to fins the sides, we do 9+9( because of the sides o the rectangle) which gives us 18. then we need to do 28-18 to find out how much both the other sides of the rectangle are, which is 10. now we divide that by 2 since we want one for each side main the measurements for the rectangle are 9cm by 5 cm. now since to find out the area of aa trapezium, we use the formula   A=1/2(a+b)h which means we add the 2 parallel sides of the rectangle which are 5 and 9. we got the 9 from figuring out the rectangle remember? now 9+5=14. next we times it by the height which will be 6 since 11-5 is 6. we got the 5 from figuring out the rectangle above. now 14x6 is 84. however what about then 1/2 part in the formula?. well, all we do now is divide 84 by 2 which gives us 48

REMEMBER: The formulae for working out the area of a trapezium is 1/2x(a+b)xh

You might be interested in
9 x 100 + 1 x 1 +3 x 1/100
Marat540 [252]

Answer:

901.03 or 901 3/100 or 90103/100

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A physical fitness association is including the mile run in its secondary school fitness test. The time for this event for boys
Ierofanga [76]

Answer:

A) 0.0107

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 440 seconds and a standard deviation of 40 seconds.

This means that \mu = 440, \sigma = 40

Find the probability that a randomly selected boy in secondary school can run the mile in less than 348 seconds.

This is the p-value of Z when X = 348. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{348 - 440}{40}

Z = -2.3

Z = -2.3 has a p-value of 0.0107, and thus, the correct answer is given by option A.

6 0
2 years ago
Graph the system of equations. <br> −x+2y=−8 <br> 3x−y=−6
Evgen [1.6K]

Answer:

x = -4, y = -6

Step-by-step explanation:

-x+2y = -8

3x-y = -6

x = 2y+8

3(2y+8) - y = -6

6y + 24 -y = -6

5y = -30

y = -6

x = 2(-6)+8 = -12+8 = -4

x = -4, y = -6

6 0
3 years ago
Read 2 more answers
Pietro has $75. He used 3/5 of his money to buy a new pair of running shoes. How much did Pietro spend on his new shoes
cupoosta [38]

Step-by-step explanation:

HI Sofia!

So this is how you find the answer.

Amount of money pietro has=$75

Amount of money he spent on shoes=3/5 of 75

=3/5*75= 45

Thus, Pietro spent $45 on shoes.

7 0
2 years ago
Read 2 more answers
Which postulate or theorem proves that these two triangles are
Len [333]
Q AAS congruence theorem
4 0
3 years ago
Other questions:
  • During September and October, a total of 825,150 visitors went to Grand Canyon National Park. if 448,925 visitors went to the pa
    8·2 answers
  • At first Davian has $120 less than Jeremy.
    8·1 answer
  • Gerald can complete a math assignment in 2 hours and a physics assignment in 1 hour. If he has 8 hours to complete a set of assi
    9·2 answers
  • I need Help PLS<br><br><br><br><br> again
    6·2 answers
  • Three times a number increased by 8 is at most 40 more than the number. Find the greatest value of the number.
    11·1 answer
  • Please help :(( I’m having a hard time with these
    7·1 answer
  • What is an equation of the line that passes through the points (-6, 3) and (-5,2)
    11·1 answer
  • Identify the inequality that represents the following problem. One less than twice a number is no less than five. What is the so
    13·2 answers
  • Help me quickly please
    5·2 answers
  • 5. The sum<br> of K and L divided by<br> Sum of d<br> and e.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!