Answer:
15 sheets of homework
Step-by-step explanation:
That is because you have 12 sheets of homework and your brother has 3 sheets of homework. 3*4=12 and 3+9=12
So 12 + 3 =15
Answer:
(x+4)² + (y+9)² = 100
Step-by-step explanation:
We want to find the equation of a circle with a radius of length 10 and a center at (-4, -9).
general equation of circle : (x-h)² + (y-k)² = r²
where (h,k) is at center and r = radius
the center is at (-4,-9) so h = -4 and k = -9 and the circle has a radius of 10 so r = 10
so we have (x-h)² + (y-k)² = r²
h = -4 , k = -9 and r = 10
(x-(-4))² + (y-(-9))² = 10²
==> apply double negative sign rule and remove parenthesis for -(-4) and -(-9)
(x+4)² + (y+9)² = 10²
==> simplify exponent
(x+4)² + (y+9)² = 100
and we are done!
To solve this expression, we need to plug r into the equation.
1 + (5)2 - (5)
= 1 + 10 - 5
= 11 - 5
= 6
Hope this helps!
The reason that there is an extra 14 cents being charged is simply because of tax
