Answer: 2
Step-by-step explanation: 0.7 times 2 is 1.4
Answer:
Step-by-step explanation:
2*(3x + 4 + 2x) + 2*(5x + x +4) = 2 *(5x +4) + 2*(6x +4 )
= 2*5x + 2*4 +2*6x + 2*4
=10x + 8 + 12x + 8
=22x + 16
Answer:
C
Step-by-step explanation:
If there are 45 balloons total, and there are more balloons, you will know that the blue balloons will have a higher ratio. The answer is C. 5:4.
Answer:
r = 3
Step-by-step explanation:
x^2 + 6x + y^2 - 8y = - 16
Take half the linear term and square it.
x^2 + 6x + (3)^2 + y^2 - 8y + (-4)^2 = - 16
Add the squared amounts to the right.
x^2 + 6x + 9 + y^2 - 8y + 16 = - 16 + 9 + 16
Combine on the right.
x^2 + 6x + 9 + y^2 - 8y + 16 = 9
Represent the 2 quadratics as perfect squares.
(x + 3)^2 + y - 4)^2 = 9
The radius is the square root of 9 which is 3
