the diagram below shows a trapezium. all the measurements are in centimetres. the area of the trapezium is 30 cm^2 l. Set up and
solve a quadratic equation to work out the value of x
1 answer:
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<u>ANSWER:</u>
If and
then the difference of a and b is 6
<u>SOLUTION:</u>
Given, →
----- (1)
And →
--- (2)
We have to find difference of a and b.
Now, add (1) and (2)
Adding above two equations, we get,
substitute value in (2)
Now, difference of a and b is a – b =
Hence, the difference of a and b is 6.
Answer:
Domain: {−2, −1, 0, 2} Range: {−4, −2, 2}
Step-by-step explanation:
We have been given a mapping diagram as shown below:
X Y
-2 -4
-1 -2
0 2
2
For better view, you can check the attached mapping diagram.
From that diagram we have to find domain and range.
Domain contains only x values so domain will be:
Domain: {-2,-1,0,2}
Range contains only y values so range will be:
Range: {-4,-2,2}
We see that only third choice matches obtained values of domain and range.
Hence final answer is Domain: {−2, −1, 0, 2} Range: {−4, −2, 2}
