Answer:
A = 21 cm²
Step-by-step explanation:
The area (A) of a trapezium is calculated as
A = 
h (b₁ + b₂ )
where h is the height between bases and b₁, b₂ are the parallel bases
Here h = 3, b₁ = 9, b₂ = 5 , then
A = × 3 × (9 + 5) = 1.5 × 14 = 21 cm²
Let 1 angles be x, then its supplement is 180-x
x+x+12=180
2x=168
x=84
angles are 84 and 96
Answer:
C
Step-by-step explanation:
If the line is parallel that means 1.2 has to be the same. And passing through (5,0) means a plus five.
Answer is length = 10 cm; width = 7 cm
Let L=length and W=Width.
The length of a rectangle is 4 centimeters less than twice its width.
This would mean that:
L= 2w-4
To find the perimeter of a rectangle you add all sides together. This would be shown as 2L+2W
Therefore, 2L+2W= 34
Since this equation has two unknowns, you cannot solve it; but we know that L=2W-4
So if we substitute that into the equation of the perimeter, you would get:
2(2W-4)+2W=34.
This only has one unknown so we can solve it. Here are the steps:
2(2W-4)+2W=34
4W-8+2W=34
6W-8=34
6W=42
W=7
Now that we know what W is we can work out L.
L=2W-4
L=14-4
L=10
So W=7 and L=10!
This shows that the length is 10cm and the width is 7cm.
Answer:
6) C
7) A
8) D
9) B
Step-by-step explanation:
when the sign is < or > then the point is clear point(white)
when the sign is ≤ or ≥ then the point is solid ( black)
6) 4y+3≤y+6
4y-y≤6-3
3y≤3
y≤3/3
y≤1 (C)
<u> </u>
7) -2y>2 ( wen sign is negative you flip the sign from> to <)
y<-2/2
y<-1 (A)
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8) y/3<-1 ⇒ y<-3 the sign is < means it is clear and on -3 (D)
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9) 3y≤2y+3
3y-2y≤3
y≤3 ( B)
