Answer:
X= -3
Y= 19
Step-by-step explanation:
Answer:yes it is greater
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
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Answer:
OW = 8
Step-by-step explanation:
It states that WC is a tangent to the circle. The line OW is the radius of the circle that meets the tangent, the circle theorem rule is that the angle a tangent makes to a radius of a circle is 90°. So angle CWO is 90°. This makes triangle CWO a right angle triangle.
Now we can use Pythagoras theorem to find the value of OW.
In the theorem c is the longest side of a right angled triangle and a and b are the smaller sides:
c² = a² + b²
So we can rearrange the equation to find on of the smaller sides:
a² = c² - b²
OW² = 17² - 15²
OW² = 289 - 225
OW² = 64
OW = √64
So OW is 8.
Answer: 6
Step-by-step explanation: There are three runners in a race
3
Each person can get first or second place prize.
First chance :3 people x 1st chance =3 chances
Second chance: 3 people x 2nd chance =3 chances
3+3=6 chances
