245= 5*7*7 :) so 5 and 7 are prime factors of 245 :)
3:30
Half past means 30 min after
Hope this helped!
Answer:
x=20
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 + b^2 = c^2
21 ^2 + x^2 = 29^2
441+x^2 =841
Subtract 441 from each side
x^2 = 841-441
x^2 = 400
Take the square root of each side
sqrt(x^2) = sqrt(400)
x = 20
Y=4 because y is 4 all the time
