AD || BC
<span>• AB = CD </span>
<span>• ∠BAD = ∠CDA (a given condition ∵ ABCD is an isosceles trapezium) </span>
<span>The diagonals AC and BD create two ∆'s: ∆ABD, and ∆ACD </span>
<span>The two ∆'s are congruent (SAS). </span>
<span>(S): AB = CD </span>
<span>(A): ∠BAD = ∠CDA
</span><span>(S): AD = DA (common side) </span>
<span>
The corresponding sides of the two ∆'s, BD and AC, are also congruent. </span>
<span>(the two diagonals of the trapezium/trapezoid)
</span>
Answer:
n = -2
Step-by-step explanation:
Step 1: Write equation
3 = -1.5n
Step 2: Divide both sides by -1.5
n = -2
Step 3: Check
<em>Plug in x to verify it's a solution.</em>
3 = -1.5(-2)
3 = 3
Answer:
Step-by-step explanation:
2.5x+8y=200
We want to get this in slope intercept form so we will solve for y
Subtract 2.5x from each side
2.5x-2.5x+8y=-2.5x +200
8y = -2.5x +200
Now divide by 8 on both sides
8y/8 = -2.5x/8 + 200/8
y = -.3125x +25
The y intercept is 25, so plot a point there
-.3125 = -5/16
Go down 5 and to the right 16 and plot a point. Connect the two points to make a line.
The value of x in D o,k (x,9) -> (-10,-6) is (d) 15
<h3>How to determine the value of x?</h3>
The dilation rule is given as:
D o,k (x,9) -> (-10,-6)
Write out the coordinates
(x,9) -> (-10,-6)
Express as fraction
x/9 = -10/-6
Multiply both sides by 9
x = -9 * 10/-6
Evaluate the product
x = 15
Hence, the value of x in D o,k (x,9) -> (-10,-6) is (d) 15
Read more about dilation at:
brainly.com/question/3457976
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Answer:
fees nutz
Step-by-step explanation:
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