Given that A'B'C' is the image of ABC under a reflection, enter that equation of the line of reflection.
1 answer:
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Answer:
∠ A ≈ 16.67°
Step-by-step explanation:
Using the Sine rule in Δ ABC
=
, substitute values
=
( cross- multiply )
16 sinA = 8 sin35° ( divide both sides by 16 )
sin A = , thus
∠ A = (
) ≈ 16.67° ( to 2 dec. places )
Answer:
Step-by-step explanation:
Total number of cards in a deck = 52
Number of red cards = 26
Number of cards not red =
Number of ways to draw not red cards =
Total ways to draw 3 cards =
The probability that none of three cards are red =
[∵
]
Now , the probability that at least one of the cards drawn is a red card = 1- Probability that none cards are red
Hence, the required probability =
<h2><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u><u>:</u><u>-</u></h2>
</h3>
</h3>
Find the coordinates of the point which divides the join of (-1,7) and (4,-3) in the ratio 2:3 ?
<h2><u>Solution</u>:-</h2>Let the given points be A(-1,7) and B(4,-3)
Now,
Let the point be P(x, y) which divides AB in the ratio 2:3
Here,
<h3>Where,
= 2 ,
= 3
= -1 ,
= 4
Putting values we get,
x =
x =
x =
x = 1
Now,
Finding y
<h3>Where,
= 2 ,
= 3
= 7 ,
= -3
Putting values we get,
y =
y =
y =
y = 3
Hence x = 1, y = 3
So, the required point is P(x, y)
= P(1, 3)
<h3>The coordinates of the point is P(1, 3). [Answer]</h3>_______________________________________
<u>N</u><u>o</u><u>t</u><u>e</u>:- Refer the attachment.
_______________________________________